Arthroscopically-assisted removal of retrograde intramedullary femoral nails.

Retrograde nailing of femoral shaft fractures has become more prevalent as a result of its growing acceptance and familiarity to orthopaedic surgeons. Nail removal is occasionally indicated, which may require a formal arthrotomy. We describe an arthroscopic removal technique that has several advantages. The percutaneous technique imparts less morbidity than a more extensive arthrotomy. More importantly, additional intra-articular pathology can be thoroughly assessed and treated, such as meniscal tears and chondral injury, which may have occurred at the time of injury. These are potential causes of knee pain, which usually cannot be properly diagnosed without arthroscopy. Our findings also support the existence of a stable fibrous cap, which forms over the entry portal of a well-seated retrograde femoral nail as well as no evidence of intra-articular metallosis.