Poster Display - 148
Short-term effect of surgical treatment of femoral neck fracture with OI in adolescents and adults
Yangyang Yao, Yanzhou Wang, Tianyou Li, Jiaqi Wang
Shandong Provincial Hospital, Jinan, Shandong, China
Purpose: Femoral neck fractures in patients with Osteogenesis Imperfecta (OI) are rarely reported. Most patients have undergone prior surgical interventions, resulting in intramedullary fixation of the femur. Additionally, coxa vara deformity and an extremely thin femoral neck significantly increase surgical complexity and complication risks. This study aims to describe the surgical outcomes of femoral neck fractures in adolescents and adults with OI.
Method: We retrospectively analyzed and followed up data from OI patients with femoral neck fractures who underwent surgical treatment at our institution. Evaluated parameters included pelvic anteroposterior (AP) radiographs, lower limb alignment on AP radiographs, fracture healing time, postoperative functional recovery, and complications.
Results: Three OI patients (2 females, 1 male; aged 17, 27, 28) were included. All patients were ambulatory with good lower limb alignment prior to fracture, despite preexisting coxa vara deformities. Surgical interventions included either in situ fixation or open reduction combined with cannulated screws, Kirschner wires, and tension band fixation.Postoperatively, patients initiated crutch-assisted ambulation within one week. Fractures demonstrated satisfactory healing at 2-month follow-up. By 6 months postoperatively, all patients regained independent ambulation and pre-fracture motor function. No perioperative complications were observed.
Conclusion: Femoral neck fractures exhibit higher incidence in ambulatory adolescents and adults with OI.For patients who can walk independently and have good alignment of lower limbs before this fracture, even if they have coxa vara deformity, we only perform simple open reduction or in-situ internal fixation techniques to promote early rehabilitation and prevent osteoporosis exacerbation from prolonged immobilization.. Our cohort achieved complete fracture union and functional recovery without complex orthopedic procedures. These findings suggest that open reduction or in-situ internal fixation may be preferred over complex orthopaedic surgery to optimize outcomes in this population.