Abstract
Bilateral rupture of the patellar tendon is considered an uncommon and rare musculoskeletal injury. The association of this lesion with medial collateral ligament tear appears to be exceedingly rare. We present the case of a combined rupture of the medial collateral ligament (MCL) and the patellar tendon of both knees in a 48-year-old man, after falling 2 meters down an embankment. While there are numerous publications concerning associated MCL tears and other knee ligaments, a combination of MCL tear with a patellar tendon rupture is very rare. In addition, our case presents the first case recorded in the literature, involving both knees of a patient. The clinical case is described and discussed following a review of the literature. The symmetrical knee injury was treated with a primary direct repair of the MCL tears and using a suture anchor fixation of the patellar tendon ruptures, which was reinforced by a stainless steel wire and an autograft of the ipsilateral quadriceps tendon.
Highlights
Bilateral rupture of the patellar tendon is considered an uncommon and rare musculoskeletal injury [1]
The lesions described were treated with the transosseous repair of the patellar tendon along with fascia lata allograft augment, and medial collateral ligament direct suture reinforced with semitendinosus tendon autograft
According to the American Medical Association’s recommendation, sprains of the knee collateral ligaments are graded into three groups based on their severity [7]: grade I implies either a stretch injury or microtears with no instability; grade II implies a partial medial collateral ligament (MCL) tear with mild to moderate joint laxity; grade III is a complete tear of the ligament with gross instability
Summary
Bilateral rupture of the patellar tendon is considered an uncommon and rare musculoskeletal injury [1] The association of this lesion with the medial collateral ligament (MCL) tear appears to be exceedingly rare [2]. The authors describe the case of a 48-year-old man with a bilateral rupture of the patellar tendons, combined with a bilateral complete tear of the MCL. The lesions described were treated with the transosseous repair of the patellar tendon along with fascia lata allograft augment, and medial collateral ligament direct suture reinforced with semitendinosus tendon autograft. The patient was informed that the case data would be submitted for publication and agreed upon
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