Bilateral spontaneous patella tendon rupture: A case report

Abstract

Spontaneous rupture of both patellar tendons is an extremely rare occurrence. This case involves a 49-year-old man who sustained a bilateral atraumatic complete patellar tendon rupture at the lower pole of the patella. The objective of this study is to systematically review this case. Methodology: The patient's medical records were reviewed and analysed. Initial X-rays of both knees revealed bilateral patella alta, while MRI scans confirmed a complete avulsion of the patellar tendons. Surgical repair was performed using a four-strand Krackow stitch technique in the patellar tendon, along with transosseous repair through three bone tunnels in the patella. Results: The patient was able to walk with a knee range-of-motion (ROM) brace on both knees within two weeks’ post-surgery. By 16 weeks, he achieved a pain-free 90° range of motion in both knees and was able to resume daily activities. Conclusion: Spontaneous bilateral patellar tendon rupture is an exceedingly rare condition, typically documented as case reports in the literature. Early diagnosis, timely surgical intervention, and structured post-operative rehabilitation contribute to favorable functional outcomes in such cases.