Department of Orthopaedic Surgery, Faculty of Medicine, Cairo University, Cairo, Egypt.
Int Orthop. 2024 Jun;48(6):1427-1438. doi: 10.1007/s00264-024-06149-w. Epub 2024 Apr 1.
To present the technique of correction of multiplanar deformities around the knee in children and adolescents using the monolateral external fixator. Also, to evaluate the results of the technique regarding radiological correction, time to union, and possible complications.
A total of 29 patients (47 limbs) were prospectively included in the study (14 males and 15 females). Their median age was 13 years (range, 7-17). All patients had at least a 2-plane deformity around the knee which was corrected using a monolateral external fixator. The primary outcome measure was deformity correction (correction of mechanical axis deviation (MAD) in both the coronal and sagittal planes with correction of rotational deformities). The secondary outcome measures included bony union, radiographic, and functional results (assessed by using the Association for the Study and Application of the Method of Ilizarov (ASAMI) score).
The median pre-operative MAD improved from 6.3 to 0.4 cm post-operatively. According to the ASAMI scoring system, the radiographic scoring was excellent in all cases (100%), and the functional scoring was excellent in 22 cases (89.7%) and good in three cases (10.3%).
The simple monolateral fixator can be an effective tool for multiplanar correction of complex deformities around the knee without limb length discrepancy.
介绍使用单侧外固定器矫正儿童和青少年膝关节周围多平面畸形的技术。并评估该技术在放射学矫正、愈合时间和可能的并发症方面的结果。
共有 29 名患者（47 条肢体）前瞻性纳入研究（男性 14 名，女性 15 名）。他们的中位年龄为 13 岁（范围，7-17 岁）。所有患者均至少存在膝关节周围 2 个平面的畸形，使用单侧外固定器进行矫正。主要结局指标是畸形矫正（冠状面和矢状面机械轴偏差（MAD）的矫正以及旋转畸形的矫正）。次要结局指标包括骨愈合、影像学和功能结果（使用 Ilizarov 方法研究与应用协会（ASAMI）评分进行评估）。
中位术前 MAD 从 6.3 厘米改善至术后 0.4 厘米。根据 ASAMI 评分系统，所有病例的影像学评分均为优秀（100%），功能评分优秀 22 例（89.7%），良好 3 例（10.3%）。
简单的单侧固定器可作为一种有效的工具，用于矫正膝关节周围复杂畸形而不引起肢体长度差异。
