A Comparative Study of Functional Outcomes Following Early Versus Delayed Mobilization in Patients Undergoing Total Hip Arthroplasty

Abstract

Background: Total hip arthroplasty (THA) is an effective surgical procedure for relieving pain and restoring mobility in patients with advanced hip disorders. Postoperative mobilization plays a crucial role in functional recovery, reducing complications, and improving patient independence. This study aimed to compare functional outcomes following early versus delayed mobilization in patients undergoing THA. Materials and Methods: This prospective comparative observational study included 50 patients undergoing primary THA, divided into early mobilization (n = 25) and delayed mobilization (n = 25) groups. Early mobilization was initiated within 24 hours, whereas delayed mobilization commenced after 48 hours postoperatively. Functional outcomes were assessed using the Harris Hip Score (HHS), Visual Analogue Scale (VAS), walking ability, length of hospital stay, and postoperative complications over six months. Results: Baseline characteristics were comparable between groups. Time to first ambulation was significantly shorter in the early mobilization group (18.4 ± 3.6 versus 54.8 ± 8.2 hours; p<0.001). Hospital stay was also reduced (5.2 ± 1.4 versus 7.8 ± 2.1 days; p<0.001). At six months, HHS was significantly higher in the early mobilization group (91.2 ± 5.8 versus 85.4 ± 7.1; p = 0.003). Postoperative pain scores were lower, and independent walking without assistance was achieved by 76% versus 52% of patients, respectively. Conclusion: Early mobilization following THA was associated with faster functional recovery, improved hip function, reduced postoperative pain, and shorter hospitalization. Supervised early rehabilitation may improve postoperative outcomes and promote functional independence.

Keywords: Total hip arthroplasty; Early mobilization; Delayed mobilization; Functional outcomes; Harris Hip Score; Postoperative rehabilitation.