Description
Currently there is no method of characterising the patellofemoral loading occurring dynamically in the native knee or during knee replacement. We describe a novel apparatus to dynamically measure patella loading in the native and replaced knee, and the effect of varying patella resection.
A characteristic pattern of patellofemoral loading is shown in the native knee which is significantly altered following TKR, suggesting abnormal loading of the patella and extensor hood apparatus may be responsible in AKP seen after TKR. Altering patella resection depth and angles subsequently allows loading in TKR to approach that of the native knee
