FUNCTIONAL OUTCOME ANALYSIS WITH REGARDS TO CUP INCLINATION AND ACETABULAR VERSION IN TOTAL HIP ARTHROPLASTY: A CASE SERIES

Abstract

Total Hip Arthroplasty (THA) is regarded as one of the most successful reconstructive procedures in orthopaedic surgery for relieving pain and restoring function in patients with end-stage hip diseases. Despite advances in implant design and surgical techniques, improper positioning of the acetabular component remains a significant cause of complications such as dislocation, impingement, accelerated polyethylene wear, reduced range of motion, and early implant failure. Acetabular cup inclination and anteversion (version) are two important radiographic parameters that influence postoperative biomechanics and functional outcomes. Aim: To evaluate the relationship between acetabular cup inclination, acetabular version, and functional outcome following primary Total Hip Arthroplasty. Objectives: • To measure postoperative cup inclination and acetabular version on radiographs. • To assess functional outcomes using the Harris Hip Score (HHS). • To determine the correlation between cup position and functional outcome. • To evaluate complications associated with malpositioned cups. Materials and Methods: A prospective observational study will be conducted on 30 patients undergoing primary THA. Standardized postoperative anteroposterior pelvic radiographs will be obtained. Cup inclination and acetabular version will be measured using digital radiographic software. Functional outcome will be assessed using the Harris Hip Score at 6 weeks, 3 months, 6 months, and 1 year. Statistical analysis will determine correlations between radiographic parameters and functional scores. Conclusion: Accurate acetabular cup positioning contributes significantly to successful functional recovery following THA. This case highlights the importance of meticulous surgical technique and appropriate rehabilitation in achieving favourable clinical and radiological outcomes.