Fig. 3A–B.

(A) Preoperative AP pelvis film of a 35-year-old man who developed left LCPD at age 5 years treated with bracing and adductor tenotomy. At presentation, the leg length discrepancy is measured at 1.9 cm (3.4–1.5 cm) with the affected leg shorted than the unaffected side. (B) Postoperatively, the leg length discrepancy is 1.3 cm (1.8–0.5) with the affected side now longer than the unaffected side. This represents a total of 3.2 cm of lengthening at the time of arthroplasty. This patient developed a postoperative sciatic nerve injury with foot drop and loss of sensation, which subsequently resolved.