TREATMENT AND REHABILITATION OF A CASE WITH HIP CORRECTION ENDOPROSTHESIS AFTER BILATERAL NEONATAL OSTEOMYELITIS, RIGHT-SIDE PROSTHESIS: A CASE STUDY IN APPLIED BIOLOGY AND HEALTH CARE

Neonatal osteomyelitis of the hip is a rare but severe condition that often leads to long-term musculoskeletal deformity despite successful infection control.This case study presents the surgical management and multidisciplinary rehabilitation of a 26-year-old male with bilateral postinfectious hip deformities and a 6 cm limblength discrepancy, who underwent right total hip arthroplasty (THA) combined with femoral osteotomy and limb lengthening.Postoperative complications included traction-related sciatic nerve injury resulting in foot drop, persistent knee extension deficit, and restricted ankle mobility.A structured rehabilitation protocol was implemented over twelve months, incorporating progressive strengthening, neuromuscular electrical stimulation (NMES), proprioceptive training, manual therapy, targeted stretching, orthotic support, and a percutaneous Achilles tendon lengthening procedure to address equinus deformity.Hip mobility demonstrated significant improvement, with active flexion increasing from 90° preoperatively to 125° at one year, and abduction from 35° to 65°.EMG findings confirmed ongoing reinnervation of the peroneal nerve, consistent with clinical recovery.This case highlights (1) the long-term consequences of neonatal hip infections, (2) the surgical complexity of THA in postinfectious deformities, (3) the challenges of postoperative nerve injury, and (4) the critical role of prolonged, individualized rehabilitation.The findings contribute valuable insight into managing severe, infection-related hip deformities requiring endoprosthetic reconstruction in young adults.