A rare mode of extensor mechanism failure in total knee arthroplasty.
We reported a rare mode of extensor mechanism failure in total knee arthroplasty. The patellar tendon was elongated and thin instead of disruption at the bone-tendon junction. We also described the surgical technique for reconstruction of patellar tendon. Patellar tendon was shortened by a precalculated amount. It was then augmented by autologous semitendinosus tendon graft and protected by tension band wire. Active full knee extension could be achieved at postoperative 10 months after the removal of wire loop.
Fan
Chi Ho Jason
CH
Department of Orthopedics and Traumatology, Alice Ho Miu Ling Nethersole Hospital, Hong Kong SAR.
Lo
Chun Kwong
CK
Yung
Shu Hang Patrick
SH
Chan
Kai Ming
KM
D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects*; D006801:Humans; D008297:Male; D009135:Muscular Diseases / Q000209:etiology* / Q000601:surgery; D017847:Patellar Ligament