Periprosthetic Femur Fracture Through a Large Osteolytic Lesion After Total Knee Arthroplasty.

Osteolysis due to polyethylene wear is a well-known complication associated with total knee arthroplasty (TKA). Here, we present the case of one failure that has been rarely reported. We report the case of a 51-year-old male who fractured through a large osteolytic lesion in his femur after a previous TKA.

Fracture of an Exeter Femoral Stem With Extensive Ipsilateral Periacetabular Osteolysis.

The Stryker Exeter stem (Stryker, Kalamazoo, MI) has been in service for over 50 years and remains the most widely used cemented stem. Stem fracture is a rare complication, with recently reported rates of 1 in 10,000. We present a case of Exeter stem fracture 25 years following initial implantation as well as a large periacetabular defect secondary to osteolysis.

A rare Bosworth Variant Isolated Distal Fibula Dislocation with a Successful Closed Reduction: A Case Report and Technique.

Introduction: The Bosworth fracture-dislocation is a rare injury originally described as an irreducible dislocation of a distal fibula fracture where the proximal fibular fragment becomes incarcerated behind the distal tibia. There have since been a few cases described of an intact distal fibula with dislocation and similar difficulties in closed reduction attempts, typically seen with associated injuries to the ankle or proximal fibula. Regardless of the specific fracture or dislocation pattern, closed reduction attempts have consistently failed in the significant majority of these cases, which can lead to complications including soft-tissue compromise, severe post-traumatic arthritis, compartment syndrome, avascular necrosis of the talus, and neurovascular compromise.