Introduction: Neglected complex posterior hip dislocations with associated acetabular fractures are rare but challenging injuries. When compounded by biomechanical alterations such as a prior patellectomy, surgical planning becomes more complicated. Total hip arthroplasty (THA) with acetabular cage reconstruction is a viable salvage option to restore hip stability and function in such scenarios. Case Report: We report a case of a 42-year-old male with a chronic posterior dislocation of the right hip and a comminuted posterior wall and column acetabular fracture, presenting 2 months post-injury. The patient had previously undergone a right-sided patellectomy. Surgical intervention included THA with acetabular cage reconstruction due to segmental bone loss. At 6-month follow-up, the patient achieved pain-free ambulation, a stable prosthesis, and satisfactory functional outcomes. Conclusion: This case highlights the successful use of acetabular cage-assisted THA in a patient with both complex hip trauma and altered knee biomechanics. Early intervention, comprehensive surgical planning, and the use of modern implants are key in managing such rare and challenging presentations. Keywords: Posterior hip dislocation, acetabular fracture, total hip arthroplasty, acetabular cage, patellectomy, biomechanics.
Saraf et al. (Wed,) studied this question.