Quantifying the kinematics of natural and prosthetic knee flexion

Quantifying the kinematics of natural and prosthetic knee flexion

A new method has been developed for quantifying knee kinematics during flexion. This method was used to measure knee kinematics from lateral radiographs taken at different angles of flexion with the two femoral condyles superimposed in each image, thus standardizing the plane of flexion-extension. W...

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Bibliographic Details
Published in:Medical engineering & physics Vol. 18; no. 8; pp. 655 - 661
Main Authors: Long, A.J., Monsell, F.P., Redhead, A.L., Porter, M.L., Hukins, D.W.L.
Format: Journal Article
Language:English
Published: Oxford Elsevier Ltd 01-12-1996
Elsevier Science
Subjects:
Adult
Biological and medical sciences
Humans
Kinematics
knee
Knee Joint - diagnostic imaging
Knee Joint - physiology
Knee Prosthesis
Male
Medical sciences
Movement - physiology
Orthopedic surgery
prosthesis
Prosthesis Design
Radiography
Reference Values
Rotation
Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases
total knee replacement
knee
total knee replacement
Kinematics
prosthesis
Knee
Human
Radiodiagnosis
Prosthesis
Diseases of the osteoarticular system
Lower limb
Radiography
In vivo
Surgical implantation
Surgery
Bending
Quantitative analysis
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Summary:A new method has been developed for quantifying knee kinematics during flexion. This method was used to measure knee kinematics from lateral radiographs taken at different angles of flexion with the two femoral condyles superimposed in each image, thus standardizing the plane of flexion-extension. When applied to the radiographs of five healthy male volunteers (age range 21–26 years), it showed that flexion was accompanied by translation between the articular surfaces. Knee kinematics were also measured in five patients after total knee replacement (TKR) surgery with a Kinemax TM Modular Total Knee prosthesis (Howmedica, Warsaw, Indiana). In the TKR patients, a translation was detected in three out of the five patients. This indicates that the prosthesis is capable of restoring normal kinematics, but does not always do so.
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ISSN:1350-4533
1873-4030
DOI:10.1016/S1350-4533(96)00018-5