Spontaneous isolated rupture of popliteus tendon presenting as locked knee: case study and literature review

Kheir, Ehab; Ghoz, Ali; Gorgees, K A; MacDonald, David; Limb, David; Giannoudis, Peter V.

doi:10.1007/s00590-006-0079-y

Cited by 2 publications

(2 citation statements)

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“…Atraumatic causes of lock knee secondary to popliteus tendon rupture have also been reported, where an isolated avulsed tendon was identified arthroscopically and acted as a mechanical block. Arthroscopic excision of the loose tendon was proven effective in that particular case [ 13 ]. Another possible cause of a locked knee due to popliteus tendon pathology is acute calcific tendinitis, which is uncommon but reportedly responds well to local corticosteroid and anesthetic application [ 14 ].…”

Section: Discussionmentioning

confidence: 99%

“…Popliteus tendon injuries have not been commonly reported as a cause of extension loss. A locked knee can result from either an obstacle occupying the joint space, as seen in true locking, or hamstring contraction due to pseudo-locking [13][14][15][16][17]. Huri G and Bicer OS first reported a case of popliteus tendon injury presenting as traumatic acute locking of the knee.…”

Section: Discussionmentioning

confidence: 99%

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Popliteus Tendon Injury: A Rare Cause of Acute Locked Knee

Wong¹,

Mohamad²,

Yusoff³

2023

Cureus

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The acute locked knee is a common presentation of meniscal tears or other intra-articular injuries. However, a popliteus tendon tear, an uncommon cause of acute locked knee, is often overlooked as a possible diagnosis. Here, we present the case of a 29-year-old male who experienced an acute locked knee following a sports injury. An arthroscopic examination revealed an intrasubstance tear in the popliteus tendon and a complete anterior cruciate ligament tear, while the menisci remained intact. Due to the extension lag caused by the popliteus tendon tear, the anterior cruciate ligament reconstruction was postponed. The patient then underwent a course of physiotherapy before the anterior cruciate ligament reconstruction and eventually achieved full knee extension after six weeks. Further surgical intervention was then performed to address the ligament injury. Our case highlights the importance of considering a popliteus tendon tear as a possible cause of an acute locked knee. Proper diagnosis and management are crucial for achieving optimal outcomes for patients with an acute locked knee and concomitant ligamentous injury.

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Section: Discussionmentioning

confidence: 99%