Hip Dislocation Following Dynamic Hip Screw Fixation: A Rare Complication

Hip dislocation is a rare complication following fixation of an intertrochanteric fracture of the proximal femur, and only a few cases of this condition have been documented in the literature. Atraumatic dislocation and deep infection are the most commonly reported. We report a case of hip dislocation presenting with pain and reduced mobility six months after dynamic hip screw (DHS) fixation. Latent deep infection was diagnosed, and organisms were isolated through intraoperative sampling. The case was managed with debridement, Girdlestone excision arthroplasty, and targeted antibiotics. Latent deep infection was identified as the cause of hip dislocation following DHS fixation in this case, with confirmation obtained via deep tissue sampling. Although spontaneous atraumatic dislocation after DHS fixation has been reported, underlying infection should be carefully ruled out.