Information for Medical Professionals

Previous surgery increase risk of patellar crepitus

A history of tendon surgery has an impact on risk of developing patellar crepitus after total knee arthroplasty, it has been claimed.

According to new research presented at the Knee Society Specialty Day Meeting, people with implanted cruciate-substitute prostheses, or those with a short patellar tendon had double the risk of developing problems when compared with those who had not undergone any form of knee surgery, reports Ortho Supersite.

"Those who had one or more previous surgeries had an incidence of 63 per cent vs 30 per cent in the control group," lead researcher Douglas A. Dennis was reported as saying.

The researchers also found that a number of factors - such as the size of femoral or tibial component, thickness of tibial polyethylene, patellar component shape, bearing style and use of lateral release - had no direct effect on the risk of developing patellar crepitus.

According to a study conducted last year, total knee arthroplasty can be useful when treating late-presentation congenital patellar dislocation.

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