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Key Clinical Message: Despite being rare, we have presented a case of osteonecrosis of acetabulum that followed total hip arthroplasty. It's crucial to act appropriately, as it emulates periprosthetic joint infection. The key point is that the osteonecrosis of acetabulum may necessitate revision and can be classified as aseptic loosening. Osteonecrosis of the femoral head is well known and managed with total hip arthroplasty (THA). Acetabulum osteonecrosis can be classified as a cause of painful THA and the cemented acetabular component is a feasible option. However, it seems that the osteonecrosis of acetabulum is sparsely alluded in literature. In this case report sustaining of the right hip pain following THA of 35‐year‐old woman is discussed. [ABSTRACT FROM AUTHOR]

Purpose: We aimed to investigate the relationship between spinopelvic imbalances and functional disabilities after total hip arthroplasty in an at least two years of follow-up. Methods: Patients with normal sagittal alignment and normal motion (PI-LL < 10°, APP < 13°, ∆SS > 10°) were defined as control, and patients with any of sagittal alignment or motion abnormalities were defined as case groups. Visual Analog Scale, SF-36, Harris hip score, HOOS-JR, and complications were recorded. Results: The differences of the means of Harris hip score, HOOS-JR, SF-36, and VAS score in the control and case groups were statistically significant. The mean of these parameters in patients with sagittal balanced (PI-LL < 10°) was much better than patients with sagittal unbalanced (PI-LL > 10°). Same results were noted in patients with decreased (∆SS < 10°) and normal spinopelvic motions (∆SS > 10°). Conclusion: Our observations indicate that spinopelvic imbalances are associated with worse postoperative functional outcomes in patients undergoing total hip arthroplasty. [ABSTRACT FROM AUTHOR]

Key Clinical Message: Combined fractures of the femoral head and acetabulum due to hip gunshot injuries (GSI) are rare, and there is no preferred treatment option. We present a 35‐year‐old male patient who sustained a right hip GSI. Delayed THA with a two‐step sequential approach is a feasible management in this situation to manage soft tissue and decrease infection rate. At a 1‐year follow‐up visit, the pain was relieved, and the function improved significantly, and he had no complaints. [ABSTRACT FROM AUTHOR]