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Functional Outcomes of Total Hip Arthroplasty using Modified Harris Hip Score and Oxford Hip Score: A Prospective
M Leo Jose1, Aravind Kumar Arunachalam1, C Arjun Karthik1
1Department of Orthopaedics, Vinayaka Mission's Kirupananda Variyar Medical College and Hospitals, Vinayaka Mission's Research Foundation (Deemed to be University), Salem, Tamil Nadu, India.
Background:
Total hip arthroplasty (THA) is a well-established surgical procedure for relieving pain and improving function in patients with advanced hip disorders. Functional outcomes can be effectively assessed using validated tools such as the modified Harris hip score (MHHS) and Oxford hip score (OHS).
Aims:
The aim of the study is to evaluate the functional outcomes of THA using MHHS and OHS and to assess post-operative recovery over a 12-month follow-up period.
Materials And Methods:
This prospective study included 50 patients aged 45-70 years undergoing THA. Pre-operative and post-operative functional status was assessed using MHHS and OHS at 6 weeks, 3 months, 6 months, and 12 months. Statistical analysis was performed using paired t-tests and analysis of variance, with significance set at P < 0.05.
Results:
The mean MHHS improved significantly from 61.2 ± 8.5 preoperatively to 88.6 ± 5.1 at 12 months (P < 0.001). Early improvement at 6 weeks was significant (P < 0.05), with highly significant gains thereafter. At final follow-up, 60% of patients had excellent outcomes, 33.3% good, and 6.7% fair (P < 0.001). The OHS improved from 21.4 ± 6.8 to 43.6 ± 4.3, with insignificant improvement at 6 weeks (P > 0.05) but highly significant improvement at later intervals (P < 0.001). Complications were minimal, with 80% of patients having no complications.
Conclusion:
THA results in significant improvement in pain, function, and quality of life. Early improvement is detected by MHHS, while OHS reflects sustained functional recovery. Early surgical intervention is associated with better outcomes.