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Updated: Jan 27, 2026

In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty
Published on: May 5, 2023
Snapping Knee due to a Femoral Osteochondroma after Total Knee Arthroplasty
Sang Jun Song1, Dae Kyung Bae2, Cheol Hee Park3
1Department of Orthopaedic Surgery, College of Medicine, Kyung Hee University, Seoul, Korea.
Abstract:
A female patient who underwent total knee arthroplasty presented with a snapping sensation over the left knee at 10 years postoperatively. Initially, the bony mass was visible on the medial femoral condyle radiographically at 5 years postoperatively. The mass had enlarged over time and her symptoms were progressive. The mass was excised at postoperative 18 years and confirmed as an osteochondroma histopathologically. The patient's symptoms have been completely resolved for 3-year follow-up after excision. Level of Evidence: V.
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