TASER-Induced Femoral Neck Fracture Following Hip Resurfacing Arthroplasty in a Law Enforcement Officer

Femoral neck fractures are a rare complication after hip resurfacing arthroplasty, often associated with technical error. Electrical discharge weapons, such as the Axon TASER 10, can cause violent involuntary muscle contractions. To our knowledge, no prior cases have reported a femoral neck fracture and implant migration due to TASER exposure in a resurfaced hip. We present the case of a 43-year-old law enforcement officer who sustained a femoral neck fracture and movement of his femoral implant following TASER discharge during training, resulting in impingement, shortening, and compensatory pain. The patient ultimately required conversion to total hip arthroplasty. This is the first known report of TASER-induced failure of a resurfacing implant, underscoring the potential for electrical injuries to affect joint prostheses in high-risk populations.