Two-year 3D gait outcomes following in-situ pinning or modified Dunn procedure in children with slipped capital femoral epiphysis

• Published in: Gait & posture 2024-10, Vol.114, p.243-249
• Main Authors: Dwan, LN, Little, DG, Birke, O, Wojciechowski, EA, Mudge, AJ, McKay, MJ, St George, J, Burns, J
• Format: Article
• Language: English
• Subjects: Adolescent; Biomechanical Phenomena; Bone Nails; Case-Control Studies; Child; Female; Gait - physiology; Gait Analysis; Humans; Male; Modified Dunn procedure; Orthopedic Procedures - methods; Paediatric; Prospective Studies; Slipped Capital Femoral Epiphyses - physiopathology; Slipped Capital Femoral Epiphyses - surgery; Slipped Capital Femoral Epiphysis; Treatment Outcome
• ISSN: 0966-6362; 1879-2219; 1879-2219
• DOI: 10.1016/j.gaitpost.2024.10.008

Slipped Capital Femoral Epiphysis (SCFE) is femoral head slippage off the femoral neck through the physis occurring in children aged 8–16 years. Surgical intervention is required in all paediatric cases and there is no universal agreement on choice of surgical procedure. What are the two-year 3D gait outcomes in children with SCFE who have undergone in-situ pinning (PIN) or modified Dunn procedure (MDP) compared with normative reference values? 17 children with SCFE who had undergone PIN (n=7, slip severity mild to moderate) or MDP (n=10, slip severity moderate to severe) surgical procedures prospectively underwent a 3D gait analysis post-surgery (2∙0 ± 0∙5 years). Ten age-matched children were also recruited to provide normative reference values. The conventional gait model was modified to incorporate Hara hip equations and Lerner pelvic tracking methods. Gait Profile Scores, Gait Variable Scores, kinematics, kinetics and spatiotemporal data were calculated for each group. Overall gait pattern, determined by the Gait Profile Score, indicated that both SCFE groups differed from the normative reference group (PIN 6∙6 ± 2∙5⁰, MDP 6∙2 ± 2∙0⁰ vs. 4∙0 ± 1∙3⁰ norm, p