Title Netrauminis abipusis girnelės savojo raiščio plyšimas: klinikinis atvejis ir literatūros apžvalga
Translation of Title Atraumatic bilateral patellar tendon rupture: a case report and review of the literature.
Authors Jonaitis, Gustas ; Petryla, Giedrius ; Kanopa, Paulius
DOI 10.15388/LietChirur.2026.25(1).9
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Is Part of Lietuvos chirurgija.. Vilnius : Vilniaus universiteto leidykla. 2026, vol. 25, iss. 1, p. 74-81.. ISSN 1392-0995. eISSN 1648-9942
Keywords [eng] bilateral patellar tendon rupture ; systemic lupus erythematosus ; corticosteroids ; knee extensor mechanism ; internal brace ; suture augmentation
Abstract [eng] Introduction. Bilateral patellar tendon rupture is rare injury, with only sporadic cases reported in the literature. Systemic diseases, such as Systemic Lupus Erythematosus, and corticosteroid administration are significant risk factors for this injury, as they contribute to collagen fiber deterioration in the tendon. Rupture of the patellar tendon disrupts the knee’s extensor mechanism, often requiring surgical intervention. Case report. This article presents the case of a 50-year-old female with a history of Systemic Lupus Erythematosus and perio- dic corticosteroid treatment, who presented with instability in both knee joints. Clinical examination revealed dysfunction of the extensor mechanism and high-riding patella bilaterally. This condition was confirmed by radiography, with the Insall-Salvati Ratio measuring 2.11 on the right knee and 1.94 on the left knee. Magnetic resonance imaging confirmed a high-grade partial rupture of both patellar tendons. Surgical intervention was indicated, leading to a combined repair of the right patellar tendon. The technique involved primary suturing combined with augmentation using internal bracing method. Stable fixation was achieved, however, a complication of lateral anchor migration occurred one month postoperatively. Despite this, the extensor mechanism integrity remained preserved. Conclusions. Bilateral patellar tendon rupture should be suspected in patients presenting with impaired knee extensor function. Diagnosis relies primarily on lateral knee radiography (at 30° flexion), with magnetic resonance imaging used for confirmation. Complete and high-grade partial rup- tures should be managed surgically. Optimal postoperative rehabilitation protocols require further investigation.
Published Vilnius : Vilniaus universiteto leidykla
Type Journal article
Language Lithuanian
Publication date 2026
CC license CC license description