Abstract
Purpose
The aim of the study was assessment of the medium-term outcome of operative treatment of avascular necrosis of the femoral head (ANFH) after slipped capital femoral epiphysis (SCFE).
Materials and methods
Five patients were treated with valgus-flexion intertrochanteric osteotomy (VFITO) for partial ANFH that developed after operative treatment. Their average age at the time of slip was 12.5 years (range, 10–14); at the time of the reconstructive operation 14 years (range, 12–16), the average interval between slip and the reconstructive operation was 14 months (range, 9–18). Partial ANFH was diagnosed between 6 and 8 months after the slip on the basis of radiographic examination. In all the patients, the anterolateral third up to half of the femoral head was always affected. The average follow-up period was 73 months (range, 60–84).
Results
Comparison of MRI scans before and after VFITO proved resorption of the necrotic segment of the femoral head and its remodeling in all the five patients. The average preoperative Harris hip score (HHS) was 86 points, the average postoperative HHS was 94 points.
Conclusion
VFITO provides a good outcome at medium-term follow-up in adolescent patients with partial ANFH after SCFE.
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Acknowledgments
This study was supported by a grant from the Ministry of Health of the Czech Republic, Grant IGA MZ: NS 9980-3: Importance of intertrochanteric osteotomy and acetabular coverage procedures in adolescent and adults for preservation of long-term hip function.
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Bartoníček, J., Vávra, J. & Bartoška, R. Operative treatment of avascular necrosis of the femoral head after slipped capital femoral epiphysis. Arch Orthop Trauma Surg 131, 497–502 (2011). https://doi.org/10.1007/s00402-010-1161-9
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DOI: https://doi.org/10.1007/s00402-010-1161-9