(i) Preoperative pain: all 41 patients experienced moderate to severe pain, while postoperatively, none reported pain
(ii) Hip flexion contracture of ≥ 15°: 9 patients had it before surgery, but none had it postop
(iii) Ambulation status preop: 10% were independent, 70% used aids, and 20% did not use aids. Postoperatively, 54% were independent, 46% used aids, and none required aids
(iv) Harris Hip Score (0–100): preop score was 36, while postop score improved to 78
(i) Function: independent sitting improved from 5 patients (15%) preop to 6 (18%) postop
(ii) Pain: permanent pain reduced from 16 patients before THR (40%) to none after THR. Pain while sitting decreased from 20 patients preop (50%) to 1 patient postop (2.5%), and pain during transfer decreased from 28 patients preop (70%) to none postop
(iii) Range of motion: flexion exceeding 80 degrees increased from 19 patients before THR (47.5%) to 34 patients after THR (85%)
(i) Pain: preop pain rated at 9, postop pain reduced to 0
(ii) Range of motion: no statistically significant changes observed
(iii) Gait: no statistically significant changes detected
(iv) Radiographic changes: femoral head deformity improved in 4 hips and remained the same in 8. In contrast, acetabular deformity improved in 11 hips and remained the same in just 1 hip
(i) Mean leg length discrepancy improved from 4.3 cm (range, 1.2 to 8 cm)
(ii) Pain: 3 patients experienced complete pain relief, while 2 patients saw a reduction in their preoperative pain
(iii) Function: 3 patients were able to return to their GMFCS level prior to the onset of hip pain, and 2 patients regained their preoperative GMFCS levels
(a) 81% (48 out of 56 patients) experienced complete pain relief
(b) All patients achieved a reduction in preoperative pain
(c) Mean pain score decreased from 8/10 to 0.7 postoperatively
(ii) Function outcomes:
(a) 88% (52 out of 56 patients) returned to their original GMFCS (gross motor function classification system) level of function before the onset of hip pain