Guided Growth for Correction of Knee Flexion Contracture in Patients with Arthrogryposis: Preliminary Results
- Authors: Trofimova S.I.1, Buklaev D.S.1, Petrova E.V.1, Mulevanova S.A.1
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Affiliations:
- The Turner Scientific and Research Institute for Children’s Orthopedics, Saint Petersburg
- Issue: Vol 4, No 4 (2016)
- Pages: 64-70
- Section: Articles
- URL: https://bakhtiniada.ru/turner/article/view/5897
- DOI: https://doi.org/10.17816/PTORS4464-70
- ID: 5897
Cite item
Abstract
Background. Knee flexion contractures frequently present in children with arthrogryposis and significantly alter kinematics of walking and reduce efficiency of ambulation or render it impossible. There are variety of surgical options for contracture correction, including entire soft-tissue release or its combination with Ilizarov ex-fix and supracondylar femoral osteotomy. Choosing of the most effective surgery is challenging because every method has limitations.
Aim. To evaluate the treatment outcomes of knee flexion deformity correction by guided growth in patients with arthrogryposis.
Materials and methods. A total of 12 patients (20 knee joints) with arthrogryposis who underwent anterior distal femoral hemiepiphysiodesis with 8 plates for knee flexion contracture correction were included in the study. The average age at surgery was 6.5 ± 0.5 (range, 4.3–9.6) years. Clinical and radiological methods were used with statistical analysis of the data.
Results. The mean preoperative knee flexion deformity angle was 48.5° ± 4.04° (range, 20°–80°). After distal femoral hemiepiphysiodesis, a reduction of knee flexion contracture was observed in 17 (85%) patients during a follow-up period of 18–36 months. The average correction was 20° ± 2.67° (range, 0°–40°) (p < 0.05). The residual deformity angle was 28.5° ± 6.03° (range, 0°–60°). Patients with contractures up to 50° demonstrated the most significant correction (by 90% compared with the initial value) (p < 0.05). This group included patients with severe flexion contractures, treated by serial casting, combined with an extension devise before surgery, which contributed to a significant reduction of the contracture.
Conclusion. Distal femoral hemiepiphysiodesis is an effective, safe, and reproducible surgical option for knee flexion contractures in patients with arthrogryposis. Combination with additional methods enables significantly reduction of knee flexion deformities from severe to moderate, thereby rendering treatment more effective with a shorter duration, which allows prompt improvement in ambulatory capacity.
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##article.viewOnOriginalSite##About the authors
Svetlana I. Trofimova
The Turner Scientific and Research Institute for Children’s Orthopedics, Saint Petersburg
Author for correspondence.
Email: trofimova_sv2012@mail.ru
MD, PhD, research associate of the department of arthrogryposis Russian Federation
Dmitry S. Buklaev
The Turner Scientific and Research Institute for Children’s Orthopedics, Saint Petersburg
Email: fake@eco-vector.ru
MD, PhD, chief of the department of arthrogryposis Russian Federation
Ekaterina V. Petrova
The Turner Scientific and Research Institute for Children’s Orthopedics, Saint Petersburg
Email: fake@eco-vector.ru
MD, PhD, senior research associate of the department of arthrogryposis Russian Federation
Svetlana A. Mulevanova
The Turner Scientific and Research Institute for Children’s Orthopedics, Saint Petersburg
Email: fake@eco-vector.ru
MD, PhD student of the department of arthrogryposis Russian Federation
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