Isolated femoral avulsion of the popliteus tendon: a systematic review of the literature.

The popliteus tendon is an important part of the posterolateral corner of the knee. Isolated injuries to the posterolateral corner are very rare, as most injuries occur in multiligamentous knee trauma. Purely isolated popliteus tendon injuries are even more rare. There is very little evidence for treatment of isolated popliteus tendon avulsion injuries. The aim of this systematic review is to report on all publications regarding isolated popliteus tendon avulsion injuries and hopefully provide some guidance for future treatment algorithms. A systematic review of the literature was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). Studies were included if they documented isolated popliteus tendon avulsion injuries. Exclusion criteria were studies with popliteus injuries in combination with other knee ligamentous injuries and popliteus tendon injuries other than femoral avulsion injuries. Twenty-eight studies were included which mentioned in total 38 patients with isolated popliteus tendon avulsion injuries. 24 patients (63%) were treated operatively. 3 (8%) patients were diagnosed arthroscopically but did not receive any surgical treatment. 9 patients (24%) were treated conservatively. In two publications, there was no mention of treatment. We found no clear recommendations in the literature for treatment of this rare injury.

Endovascular assisted removal of intrapelvic lag screw after intramedullary proximal femoral nail: A case report and literature review.

Background: Trochanteric fractures are very common hip injuries often fixed with intramedullary nailing as the recommended treatment. Medial lag screw migration of the intramedullary nail system is an uncommon complication. The objective of this case report is to highlight the importance of optimal reduction in hip fractures and the need for a multidisciplinary approach with vascular assistance in intrapelvic lag screw migration. Case report and results: We collected 24 cases of intrapelvic migration of the lag screw in the latest literature. Here, we report the case of a 68-year-old patient with medial pelvic migration of the lag screw after minor trauma and its removal using peroperative simultaneous angiography. After removal of the osteosynthesis material, a revision to a total hip arthroplasty was performed. Conclusion/discussion: This is the first case demonstrating an endovascular assisted removal simultaneous with revision surgery. We suggest that a multidisciplinary approach is warranted in which the orthopedic surgeon is assisted by a vascular surgeon. An endovascular assisted open removal of the lag screw with conversion to a hip arthroplasty is considered a safe treatment.