<address id="h17vt"><var id="h17vt"><ins id="h17vt"></ins></var></address>

    <address id="h17vt"><dfn id="h17vt"></dfn></address>
      <address id="h17vt"></address>
        <address id="h17vt"><var id="h17vt"><ins id="h17vt"></ins></var></address>
          <thead id="h17vt"><dfn id="h17vt"></dfn></thead>
          <sub id="h17vt"><var id="h17vt"><mark id="h17vt"></mark></var></sub>

          <sub id="h17vt"><dfn id="h17vt"></dfn></sub>

          <sub id="h17vt"><dfn id="h17vt"><output id="h17vt"></output></dfn></sub>

            <sub id="h17vt"><var id="h17vt"></var></sub>
            <address id="h17vt"></address>

            <address id="h17vt"><dfn id="h17vt"></dfn></address>

            Glossary of terms


            A

            A/P

            Anterior/Posterior (anatomic terms)

            AAOS

            American Academy of Orthopedic Surgeons

            Abdomen

            A portion of the body between the thorax and pelvis

            Abduct

            To draw away from the midline

            Abduction

            The act of drawing away from the midline; opposite of adduction

            Abductor

            A muscle performing the function of abduction

            Abscess

            Localized collection of pus

            Acetabulum

            The cavity in the os coxae (hip) into which the head of the femur fits

            Acromion

            Bony process of the scapula which forms the point of the shoulder

            Acute

            Severe and/or short duration; used in speaking of duration and severity of disease

            Adamant

            Extremely hard, as enamel of tooth

            Adduct

            To draw toward the midline

            Adduction

            The act of drawing toward the midline; opposite abduction

            Allograft

            A tissue transplanted to a different individual of the same species

            Alloy

            A mix of metals designed to improve implant material properties for specific purposes

            All-poly

            A component composed entirely of polyethylene, with no metal parts

            Amphiarthrosis

            A joint with little movement and no joint cavity

            Anconeus

            Pertaining to the elbow

            Ankylosis

            The fusion of a joint

            Anteflexion

            A forward curvature; a condition in which the upper part of an organ is bent forward; opposite of retroflexion

            Anterior

            Placed in the front or forward part; opposite of posterior

            Anteversion

            A forward turning; a condition in which an entire organ is abnormally tipped forward

            Apex

            Top or summit

            Aponeurosis

            A flat sheet of white fibrous tissue, usually serving as an attachment for a muscle; plural aponeuroses; aponeurotica, Latin adjective

            Appliance

            Device used in support or fracture fixation external or internal

            Apposition

            The state of being fitted together, being in contact at the ends (see also mineral apposition)

            Aqueous

            Watery

            Arthritis

            Inflammation of a joint

            Arthrodesis

            Fusion of a joint, eliminating all motion

            Arthroplasty

            The surgical reconstruction of a joint

            Arthrosis

            A joint: from the Greek

            Arthrotomy

            Cutting into a joint

            Articular

            Pertaining to a joint; surfaces that "fit together"

            Articulation

            Movement of a joint; from the Latin

            Asepsis

            A condition free from germs; free from infection

            Aspect

            Position, surface, or face

            Aspirate

            To remove by suction

            Asymmetric design

            A design which mirrors the natural, anatomic contours of a joint, a design which comes in right and left configurations

            Atrophy

            A wasting away of tissue usually through disuse

            Autograft

            A tissue transplanted from one part to another part of the same body

            Autonomic

            ?Being self-controlled; independent

            Axial

            ?Pertaining to the axis or line about which a body turns, therefore pertaining to the trunk; opposite of appendicular

            B

            Beads, beaded

            Term used to describe implant coatings made of tiny spheres (beading)

            Biaxial

            Turning about two axes (having two axes)

            Biconcave

            Having two concave surfaces

            Bilateral

            Occurring on both sides of a midline point or pertaining to both sides of the body (ex. bilateral knee replacement means having both knees replaced)

            Biocompatibility

            Materials that can coexist with living tissue without being harmful or toxic or being rejected by the host. The most common materials for joint replacement are polyethylenes, metals and ceramics, each has specific biocompatible characteristics

            Biomechanics

            The study of the relationship between forces and motion in biologic systems like the human body

            Bipolar

            Having two poles or processes

            Blood

            A fluid tissue circulating through heart, arteries, veins, and capillaries

            Bone cement

            Material usually made of polymethylmethacrylate (PMMA) which acts like a grout between an implant and the patient’s bone (see also cement)

            Brachial

            Pertaining to the arm

            Broach

            A tool or instrument used to enlarge the interior canal of bones to allow for insertion of implants, broaching is the process of enlarging the canal

            C

            Cage

            A type of spinal implant

            Calcaneus

            The heel bone; also termed calcaneum

            Calcar

            A thickened plate of bone near the head of the femur

            Cancellous

            Lattice-like bone structure; softer bone

            Cancellous bone

            A type of bone characterized by a spongy or lattice-like structure. Also known as Trabecular Bone.

            Cancellous-structured titanium

            A specially-manufactured, patented type of titanium coating that permits bone ingrowth because of its lattice-like surface texture. (see also CSTi)

            Capitate

            Bone of the wrist having head-shaped process.

            Capitulum

            Little head.

            Capsular

            A ligament which surrounds a movable joint.

            Caput

            Head; capitis, "of the head."

            Carpal

            Pertaining to the wrist.

            Carpus

            The wrist; carpi, "of the wrist."

            Caudal

            Pertaining to any tail-like structure; inferior in position.

            Cement

            Material usually made of polymethylmethacrylate (PMMA) which acts like a grout between an implant and the patient’s bone. (Bone cement)

            Cemented

            An implant which is secured in a patient’s body with the aid of bone cement or the process of using cement to help fix an implant.

            Central

            Situated in the midportion as opposed to peripheral.

            Chronic

            Of long duration; opposite of acute.

            Circumduct

            To rotate in a cone shape around a single point, as in the shoulder joint.

            Circumflex

            Bent or turned about.

            Clavicle

            The collar bone

            Clinical pathway

            Established methodologies and decision trees for use by health professionals and patients in planning and preparing for medical intervention.

            Coatings

            Any number of different materials applied to the surface of an implant or prosthesis to aid in fixation; porous coatings generally permit ingrowth into the implant. (see also porous, beads)

            Cobalt-chrome

            A metal alloy with excellent resistance to fatigue, cracking and stress, widely-used in orthopedic implants. (also see CoCr)

            Coccyx

            Last, lowest portion of vertebral column (tailbone).

            CoCr

            Cobalt Chrome Alloy, a metal alloy with excellent resistance to fatigue, cracking and stress, widely-used in orthopedic implants.

            Collar, collared

            The top edge of a hip stem implant which rests on the top edges of the bone in which it was implanted.

            Component

            A part of an implant system, for example the patellar component is that piece that either replaces or enhances the original patella (knee cap).

            Concave

            Having a depressed surface; center is at a lower level than edge; opposite of convex.

            Condyle

            A rounded knob on the end of a hone; a knuckle.

            Condyloid

            Resembling a knuckle.

            Congenital

            Present at birth, as in CDH, congenital dislocated hip.

            Congruent

            The degree of constraint of two articular implants. (congruence)

            Convex

            Having a rounded elevated surface; opposite of concave.

            Coracoid

            Like a crow's beak; variant of coronoid.

            Costal

            Pertaining to a rib or ribs.

            Coxa

            The hip; coxae, "of the hip."

            Cranial

            Pertaining to the cranium.

            Cranium

            The skull or brain pan.

            Cruciate

            Shaped like a cross.

            Cruciate ligament

            Any paired set of ligaments that cross over each other in an "X" formation, usually used to refer to the posterior cruciate ligament and the anterior cruciate ligament of the knee, which help stabilize the forward and backward motion of the knee.

            Cruciate-retaining

            A knee system design that allows the surgeon to keep the patient’s cruciate ligament.

            Cruciate-sacrificing

            A knee system in which the design of the implant must serve to stabilize the forward and back motion of the knee components because of an excised or deficient patient’s ligament. (see also PS)

            CSTi

            A specially manufactured, patented type of titanium coating that permits ingrowth because of its lattice-like surface texture. (see also Cancellous-structured titanium)

            Cubital

            Pertaining to the tile space in front of the elbow joint.

            Custom

            An implant manufactured to the demands of a surgeon based on the specific needs of one patient

            Cyclic fatigue

            A biomechanical measure of stress placed on a material, measured in "cycles" of regular motion (as in joint motion - rotation, bending, etc.)

            D

            Deltoid

            Triangular; resembling the Greek letter, delta.

            Design rationale

            The justification for an implant design based on extensive research into materials, clinical data, function, style, anatomical constraints, etc.

            Diagnosis

            Recognition of disease from symptoms.

            Diathrosis

            A freely moveable joint; plural diarthroses.

            Digiti

            Of a digit.

            Digitorum

            Of the digits.

            Dislocation

            The displacement of any part, especially the removal temporarily of a bone from its normal position in a joint

            Distal

            Remote; opposite of proximal.

            Dorsiflex

            To turn toward the back; opposite of palmar flex.

            E

            Endosteum

            Tissue surrounding the medullary cavity of bone.

            Epi

            A prefix meaning "on" or "above", opposite of hypo.

            Epicondyle

            A prominence or a bone on or upon a condyle.

            Epiphysis

            A part of process of a bone which ossifles separately before making osseous union with the main portion of the bone; the "growth plate" of bones

            Etiology

            The study of the causes of disease

            Eversion

            The act of turning outward; opposite of inversion.

            Evert

            To turn out; to turn tile sole of the foot outward opposite of invert.

            Extension

            A movement at a joint bringing the two parts into or toward a straight line from a flexed position; opposite of flexion

            External

            On the surface or outer side; opposite of internal. Latin adjective, externus or externa

            Extra

            Prefix meaning "outside of," opposite of intra

            F

            FDA

            Food and Drug Administration

            Femur

            Thigh; bone of the thigh; femoral is the adjective; femoris, "of the thigh." Smaller bone of lower leg; tile splint bone

            Fixation

            The act, process or operation of holding, suturing or fastening something into a fixed position. In orthopedics, often refers to the stability and immobilization of an implant into the patient’s body

            Flexion

            Sagittal plane movement in which the anterior surfaces of two segments are brought closer to each other; opposite of extension; bending of a joint

            Flexure

            The curved or bent part of a structure

            Foramen

            A hole; plural, foramina, or foramens

            Fossa

            A pit or hollow; plural, fossae

            Fracture

            A break in the continuity of bone

            G

            Glenoid

            Resembling a pit or pocket. The glenoid fossa of the scapula is very shallow. Analogous to the acetabulum of the hip

            GMP

            Good Manufacturing Practices, part of total quality systems

            H

            Hallux

            The great toe; hallucis "of the great toe"

            Harris Hip Scores

            A numerical rating scale used for evaluation of the hip. The Harris Hip Rating Scale evaluates pain, function, absence of deformity and range of motion. One hundred is the highest possible total.

            HSS Knee Scores

            Hospital for Special Surgery Knee Scores, a numerical scale for rating knees.

            Humerus

            The upper arm bone.

            Hydroxyapatite (HA)

            A bioactive calcium phosphate ceramic similar to normal bone, may be applied to implant surfaces.

            Hyper

            Prefix meaning above; opposite of hypo.

            Hyperplasia

            Increase in size of a tissue or organ due to an increase in the number of cells.

            Hypertrophy

            Increase in the size of a tissue or organ due to an increase in the size of its constituent cells.

            Hypo

            A prefix meaning below or under; opposite or epi or hyper.

            I

            IDE

            Investigational Device Exemption (studies of experimental products).

            Ilium

            The bone of the flank; adjective is iliac; ilio is the combining form.

            Implant

            A device (or tissue or substance) that is transferred, grafted, or inserted into a living body. (see also stem, prosthesis)

            Index

            Referring to the forefinger or "pointing" finger.

            Inferior

            Situated or placed below; opposite of superior; inferioris, a Latin form of the adjective.

            Infra

            A prefix meaning "beneath," opposite of supra.

            Ingrowth

            The process of living bone or tissue growing up to and into the surface of an implant, very important for stabilization and long-term life of the implant. (bone or bony ingrowth)

            Instrument

            A tool or implement used in surgery.

            Inter

            A prefix meaning "between".

            Interbody fusion

            A surgical technique for achieving bony fusion between invertebral bodies, term used to describe a specific back surgery technique.

            Interface

            Surface forming a common boundary between two bodies (used to describe the interaction of implant and living tissue).

            Internal

            Within or on the inside.

            Intra

            A prefix meaning "within".

            Inversion

            The act of tuning inward; opposite of eversion.

            Invert

            To turn in; to turn the sole of the foot inward; opposite of evert.

            Involuntary

            Performed against the will or consent.

            Ischium

            Bone of the hip; adjective is ischiatic, ischial, or sciatic.

            ISO

            International Standards Organization, a standards issuing body.

            K

            Knee Society Score

            A numerical scale for evaluating knee function developed by the Knee Society.

            Kyphosis

            An abnormal condition (curvature) of the spine; hunch-backed.

            L

            Lateral

            Pertaining to the side; opposite of medial.

            LD

            Low-demand or low density

            LDPE

            Low Density Polyethylene

            Ligament

            Fibrous connective tissue connecting the articular ends of bones serving to bind them together and to facilitate or limit motion.

            Lordosis

            Abnormal anterior convexity of the lumbar spine.

            Lumen

            Space within a tube or organ.

            Lunate

            A bone of the carpus shaped like a crescent moon.

            Luxation

            Dislocation of a joint.

            M

            M/L

            Medial/Lateral (anatomic term)

            Major

            Larger, opposite of minor, majus is neuter adjective.

            Malleolus

            A little hammer (mallet); a hammer-shaped process; ankle bone. Plural, malleoli.

            Mandible

            Bone of lower jaw.

            Marrow

            Soft central part of a bone.

            Maxilla

            A jawbone; particularly the bone of the upper jaw.

            Media

            Middle

            Medial

            Pertaining to the center; opposite of lateral.

            Median

            Pertaining to the middle; that is, between two other structures.

            Meniscectomy

            Removal of the meniscus cartilage of the knee.

            Meniscus

            A "C" shaped cartilage in the knee which provides a stabilization system for the knee and a measure of shock absorption

            Metacarpus

            Beyond the instep; the five bones of the foot between the toes and tarsal bone

            Metal-backed

            Term used to describe implants that have a polyethylene liner set in a metal shell or on a metal base, the metal portion would rest in a prepared area in the bone and the polyethylene side would move against other metal components

            Minor

            Smaller, opposite of major.

            Morphology

            The study of the structure of organisms, used colloquially to refer to the structure of body parts

            N

            Navicular

            Boat shaped; carpal bone at the base of the thumb. Also called the scaffoid

            Necrosis

            Death of areas of tissue or bone surrounded by healthy tissue.

            Non-porous

            An implant designed to be used with bone cement for stabilization; a surface that is not designed for nor coated with surfaces for ingrowth

            O

            O.R.I.F.

            Open Reduction, Internal Fixation.

            Oblique

            Slanting; between horizontal and vertical direction..; Latin adjective, obliquus

            Olecranon

            From the Greek word for elbow. The prominence at the proximal end of the ulna

            Opposition

            The act of opposing one part to another.

            Orbital

            Pertaining to the orbit (eye).

            Organ

            A group of tissues having a special function.

            Orthopedics

            Branch of medical science that deals with treatment of disorders involving locomotor structures of the body, especially the skeleton, joints, muscle, fascia.

            Orthopedist

            A physician specializing in orthopedics.

            Os

            Bone; Os coxae - hip bone.

            Osmosis

            Passage of fluid across a membrane from a lesser to a more highly concentrated solution

            Ossification

            Formation of bone.

            Osteophyte

            An abnormal bony outgrowth

            Osteoporosis

            Increased porosity of bone.

            Osteotomy

            Cutting and repositioning bone to more functional position.

            Outcome management

            The process of collecting, tracking and interpreting outcomes data

            Outcomes

            The results of surgery in terms of patient satisfaction, reduction of pain, improved function, etc. Outcomes are tracked by hospitals and practices.

            Oxygenless

            A patented procedure used by Zimmer in the packaging of polyethylenes where oxygen is removed from the packaging. Lab testing has shown the process decreases the wear rates of PE (polyethylene).

            P

            Palmar

            The palm of the hand.

            Para

            Prefix meaning "beside," "accessory to" or near.

            Patella

            The kneecap

            Patient Satisfaction Surveys

            Surveys which seek to measure patients’ satisfaction with their surgery, recovery, etc. These form part of the outcomes data that surgeons and hospitals track.

            Pearls

            Expert surgical techniques developed by senior surgeons, often for particular implants or procedures. (see surgical pearls)

            Pedal

            Pertaining to the foot.

            Pelvis

            A basin or basin-like structure.

            Peri

            Prefix meaning "around."

            Peripheral

            Located on or near the surface of a part.

            Pes

            The foot; pedis, "of the foot."

            Phalanges

            Plural of phalanx, which refers to any bone of the finger or toe.

            Plantar

            Pertaining to the sole of the foot; plaritaris; Latin adjective plantae, "of the sole of the foot."

            Plasma

            Fluid portion of the blood.

            Plasma spray

            A coating for implants

            Plastics

            A common term that in orthopedic devices refers usually to polyethylene and more specifically to ultra-high molecular weight polyethylene (UHMWPE). (see also polyethylene, UHMWPE)

            PMA

            Pre-Market Approval (FDA approval after IDE study is complete).

            PMMA

            Poly methylmethacrylate (bone cement). (see also cement, bone cement)

            Polyethylene

            A type of plastic formed by the polymerization of ethylene. Different structural properties come from differences in molecular weight, branching, cross-linkage and crystallinity. The most common form used in orthopedic devices is ultra-high molecular weight polyethylene (UHMWPE).

            Pore

            Small holes or spaces on the surface or interior of a material.

            Porous

            Characterized by pores and open spaces.

            Porous-coated

            The design feature of a type of implant where the metal has small surface openings into which bone or tissue is intended to grow for permanent stabilization.

            Posterior

            Situated behind or toward the back; opposite of anterior.

            Press-fit

            Describes the fit at the interface of an implant with the surrounding bone; the implant is implanted without cement and is tightly "pressed" or impacted into the patient’s bone. (see also uncemented)

            Primary

            Initial or first; in joint replacement, this term is used to indicate the first surgery to repair or replace a joint as opposed to a revision surgery which replaces or revises an implant.

            Process

            A slender projecting point; Latin, processus.

            Prognosis

            The likely outcome of an illness

            Pronate

            To turn palm downward (opposite: supinate).

            Prone

            Lying with face downward (opposite: supine).

            Prosthesis

            Replacement of a missing part by an artificial substitute. An artificial organ or part.

            Protract

            To extend forward or outward; opposite of retract.

            Proximal

            Nearest; opposite of distal.

            PS

            Posterior Stabilized; a posterior stabilized knee is a type of semiconstrained total knee system that compensates for a deficient or absent posterior cruciate ligament through its surface geometry (its design minimizes forward and backward movement of the knee and substitutes for the function of the ligament).

            Pseudarthrosis

            A false joint developing after a fracture that has not united.

            Pseudo

            A prefix signifying "false.

            PT

            Premier Total

            Pubis

            Pubic bone

            R

            Radiolucent

            Allowing x-rays to pass through, radiolucent areas appear dark on x-rays.

            Radius

            A bone of the forearm.

            Ream,reaming

            A verb meaning to gouge out holes or enlarge holes already made, in orthopedic surgery, bones need to be reamed to allow for the implantation of a prosthesis.

            Recurvatum

            Hyperextension of the knee.

            Reduction

            Restoration to normal position.

            Retract

            To pull back; opposite of protract.

            Retrieve

            To remove an implant from a patient (retrieved, retrieval)

            Retro

            Prefix meaning behind.

            Retroflexion

            A backward bending of one part of an organ on another portion; Opposite of anteflexion.

            Retroversion

            A backward turning; the entire organ is turned backward; opposite of anteversion.

            Revision

            In orthopedic surgery, this term indicates a subsequent surgery to alter, replace or remove an implant

            Roentgenogram

            A photograph made by means of roentgen rays or x-rays. The rays are named in honor of their discoverer.

            Roentgenoscopy

            Examination by means of a fluoroscope

            ROM

            The area through which a joint may be moved in all planes, measured in degrees. The greater the ROM, the more flexible the joint. One of the goals of joint replacement is to improve a patient’s ROM in the joint that may have been lost to arthritis, trauma or deformity. (range of motion)

            Rotation

            The act of turning about a centrally located length axis

            S

            Sac

            Any bag-like organ

            Sacrum

            Five fused vertebrae below the last lumbar vertebra

            Sagittal

            Pertaining to the median vertical plane of the body

            Scapula

            The shoulder blade.

            Scoliosis

            Lateral abnormal curvature of the spine

            Semilunar

            Shaped like a half moon

            Septic

            Infection due to presence of pathogenlc organisms

            Serrated

            Having a saw-tooth edge

            Serum

            Clear portion of any animal fluid

            Shear

            A biomechanical term meaning a load applied parallel to the surface of a structure; shear strength is the amount of resistance in a material to angular deformation (bending) resulting from shear forces

            Shell

            The acetabular component, the part of a hip replacement system that serves for the hip socket

            Sinus

            A cavity

            Skeleton

            The hard framework of the body. The bones of the body collectively

            Spinous

            A spine-like process; Latin adjective, spinatus

            SS

            Stainless Steel

            Stem

            A device (or tissue or substance) that is transferred, grafted, or inserted into a living body (see also implant, prosthesis)

            Sterile

            Clean and free from all living micro-organisms

            Sternum

            The breast bone

            Sub

            Prefix meaning "below" or "beneath"

            Subclavian

            Beneath the clavicle

            Subluxation

            A partial or incomplete dislocation

            Submaxillary

            Beneath the maxilla

            Subscapular

            Beneath the scapula

            Subsidence

            The settling of a prosthesis after implantation; it is determined by comparing x-rays immediately after surgery to x-rays taken at a later date. Subsidence is a sure sign of loosening of an implant

            Superior

            Higher; opposite of inferior; superioris, a Latin form of the adjective

            Supinate

            To turn the palm of the hand upward (opposite: pronate)

            Supine

            Lying flat on the back (opposite: prone)

            Supra

            Prefix meaning "above;" super has same meaning; opposite of sub

            Surgical pearls

            Expert surgical techniques or tips developed by senior surgeons, often for particular implants or procedures

            Surgical technique

            A series of steps required to complete a surgical procedure (or operation)

            Symphysis

            A growing together

            Synovectomy

            An immovable joint

            Synovia

            A union of bones by means of cartilage

            Synovial Membrane

            A thin tissue that lines the capsule surrounding the joint

            T

            Talus

            The ankle; a bone of the ankle. The tarsal bone articulating with the distal tibia and fibula.

            Tarsus

            (1) The instep; the seven bones forming the back portion of the foot (2) Connective tissue framework of the eyelids.

            Telesession

            An instructional course or lecture provided by one-way video, often a telesession consists of an expert surgeon discussing and/or demonstrating specific techniques or characteristics of an implant system.

            Template

            An outline used to trace bones in order to standardize its form; surgeons use templates of implants to measure against a patient’s x-rays to select the best size and best design for the patient’s anatomy and surgical needs.

            Tendon

            Fibrous connective tissue serving for the attachment of muscles to bones and other parts. Syn. - sinew

            Tensile strength

            A biomechanical measurement of the amount of stress required to cause a given material to fail.

            Thoracic

            Pertaining to the chest; thoracico or thoraco, containing forms

            Ti

            The abbreviation for Titanium, a metal often used in implants

            Tibia

            Latin name of shin bone. Larger bone in the lower leg. Pertaining to the tibia; Latin adjective, tibialis

            Tissue

            A collection of similar cells specialized to perform a particular function

            Titanium

            A metal often used in the manufacture of orthopedic devices or implants. It has good fatigue, wear and strength characteristics and is often combined with other metals in alloys which enhance desirable characteristics.

            Trabecular

            A type of mature bone commonly found at the ends of bones, it is composed of a latticework of bony plates and columns. Its structure gives trabecular bone a great deal of strength despite having less bony material than cortical bone.

            Trochanter

            Either of two bony processes of the upper femoral shaft for muscle attachment

            Trochlear groove

            The articular portion of the anterior surface of the distal femur (the front-facing notch at the lowest part of the femur where the femur joins the knee joint, this groove provides a shallow depression where the patella slides as the knee articulates).

            Tubercle

            A small rounded elevation of eminence on a bone

            Tuberosity

            Broad eminence on a bone

            U

            UHMWPE

            Ultra-High Molecular Weight Polyethylene, a type of polyethylene with superior wear properties, very commonly used in orthopedic devices. (see also polyethylene, plastic)

            Ulna

            The inner and larger bone or the forearm; In the correct anatomic position, palms forward, the inner and larger bone of the forearm, between the wrist and the elbow, on the side opposite the thumb.

            Ultra-congruent

            Highly congruent, contains a high degree of constraint between two articular implants (see also congruent)

            Uncemented

            A prosthesis that is implanted without cement (see also press-fit)

            UNI

            Unicompartmental knee (also can be the abbreviation for unilateral)

            Unilateral

            One-sided, affecting only one-side (ex. a unilateral knee replacement would replace just one knee, not both) (see also uni)

            V

            Valgus

            A term denoting position meaning bent outward (knock-knee) or twisted, applied especially to deformities in which a part is bent outward. Also increased femoral head-neck angle

            Value-added services

            This is a broad term that encompasses systems that help orthopedic customers (surgeons and hospitals) meet the demands of managed care, these systems are not directly related to orthopedic implants

            Varus

            (1) Turned inward; bowlegged. (2) A condition in which a clubfooted person walks on outer border of the foot. Also, decreased femoral head-neck angle

            Vastus

            Wide or great

            Vertex

            The summit or apex

            Viscous

            Sticky or gummy, thick fluid

            Vitreous

            Glassy

            Voluntary

            Performed in accordance with the will; opposite of involuntary

            W

            Wear

            The loss of material from solid surfaces due to mechanical abrasion

            All content herein is protected by copyright, trademarks and other intellectual property rights, as applicable, owned by or licensed to Zimmer Biomet or its affiliates unless otherwise indicated, and must not be redistributed, duplicated or disclosed, in whole or in part, without the express written consent of Zimmer Biomet. ?
            To find a doctor near you, click the ‘find-a-doc’ link. For printed information on joint replacement, call 1-800-447-5633.
            Talk to your surgeon about whether joint replacement or another treatment is right for you and the risks of the procedure, including the risk of implant wear, loosening or failure, and pain, swelling and infection. Zimmer Biomet does not practice medicine; only a surgeon can answer your questions regarding your individual symptoms, diagnosis and treatment.