Hospital Español. México.
Servicio de Ortopedia. Hospital Español. México.
Acta Ortop Mex. 2020 Jul-Aug;34(4):261-266.
Mirror hand syndrome is a very rare congenital deformity, also called cubital dimelia, characterized by the absence of the thumb, as well as the duplication of the fingers in a symmetrical image and, in some cases, with a duplication of the bones of the forearm.
The current treatment consists of a thumb reconstruction through thumb pollicization, although there are alternatives such as rotating osteotomy, syndactylization or conservative treatment. In this article we present the case of a girl with a non-classic bilateral mirror hand, the clinical and radiological findings, the bilateral surgical technique in two surgical times with six months of difference and two years follow-up.
Complete mobility arches, as well as a good hand holding function were achieved with metacarpophalangeal thumb flexion 0-40o, interphalangeal 5-45o and abduction-adduction 0-50o. We achieved a complete opposition of the new thumb with respect to the other fingers. The strength of the clamp between the fingers was 75.2% of the normal force for her given age, while the strength of the lateral clamp of 66.3% and that of the grip of the fist was 69.1%.
The surgical technique in the present case (pollicization of the thumb) is an excellent option, achieving objectives of fine and gross motor skills, and good cosmetic results.
镜像手综合征是一种非常罕见的先天性畸形，也称为肘重复畸形，其特征是拇指缺失，以及手指以对称的镜像形式重复出现，在某些情况下，前臂的骨骼也会重复。
目前的治疗方法是通过拇指拇指化进行拇指重建，尽管有其他替代方法，如旋转截骨术、并指术或保守治疗。在本文中，我们介绍了一位患有非典型双侧镜像手的女孩的病例，包括临床和影像学发现、双侧手术技术，该手术分两次进行，两次手术时间间隔六个月，随访两年。
通过掌指关节拇指屈曲 0-40o、指间关节 5-45o 和外展-内收 0-50o，实现了完全的活动拱和良好的手抓握功能。我们实现了新拇指与其他手指的完全对指。手指之间的夹力为她同龄正常夹力的 75.2%，而外侧夹力为 66.3%，握拳夹力为 69.1%。
本病例（拇指拇指化）的手术技术是一种很好的选择，可实现精细和粗大运动技能的目标，并获得良好的美容效果。
