Singh Jaiveer, Kumar Krishan, Krishnan Rohan
Orthopaedics, ESIC-PGIMSR (Employees' State Insurance Corporation Hospital and Postgraduate Institute of Medical Sciences and Research) Basaidarapur, New Delhi, IND.
Orthopaedics and Sports Medicine, ESIC (Employees' State Insurance Corporation) Medical College & Hospital, Faridabad, IND.
Cureus. 2025 Jul 23;17(7):e88569. doi: 10.7759/cureus.88569. eCollection 2025 Jul.
Acetabular cup positioning is critical in total hip replacement (THR) for achieving optimal joint biomechanics and preventing complications. This study evaluates the relationship between postoperative cup orientation, measured via computed tomography (CT), and functional outcomes assessed using the Harris Hip Score (HHS).
A prospective observational study was conducted that included 30 patients undergoing primary THR. Cup inclination and anteversion were measured postoperatively via CT scans. Functional evaluation was done using HHS and range of motion (ROM) at six months. Statistical analysis included paired t-tests and descriptive metrics.
The mean anteversion was 15.3° ± 5.85°, and the mean inclination was 42.7° ± 5.31°. Significant ROM improvements were observed (p<0.001), but no significant correlation was found between cup orientation and HHS (anteversion: r=0.12, p=0.52; inclination: r=0.08, p=0.67).
We conclude that precise cup positioning enhances stability, but functional outcomes depend on multiple factors, including comorbidities and rehabilitation. CT evaluation post-surgery offers a reliable assessment tool. Larger, multicenter studies with extended follow-up are warranted to confirm these results.
在全髋关节置换术（THR）中，髋臼杯的定位对于实现最佳关节生物力学和预防并发症至关重要。本研究评估了通过计算机断层扫描（CT）测量的术后髋臼杯方向与使用Harris髋关节评分（HHS）评估的功能结果之间的关系。
进行了一项前瞻性观察性研究，纳入了30例行初次THR的患者。术后通过CT扫描测量髋臼杯的倾斜度和前倾角。在六个月时使用HHS和活动范围（ROM）进行功能评估。统计分析包括配对t检验和描述性指标。
平均前倾角为15.3°±5.85°，平均倾斜度为42.7°±5.31°。观察到ROM有显著改善（p<0.001），但未发现髋臼杯方向与HHS之间存在显著相关性（前倾角：r=0.12，p=0.52；倾斜度：r=0.08，p=0.67）。
我们得出结论，精确的髋臼杯定位可增强稳定性，但功能结果取决于多种因素，包括合并症和康复情况。术后CT评估提供了一种可靠的评估工具。需要进行更大规模、多中心且随访时间更长的研究来证实这些结果。
