Slakey J B, Hennrikus W L
Naval Hospital, San Diego, USA.
J Bone Joint Surg Br. 1996 May;78(3):481-3.
We examined prospectively 4719 newborn infants to determine the congenital incidence of trigger thumb. No cases were found. Fifteen other children aged from 15 to 51 months had surgery for this condition. The anomaly had not been seen at birth and all thumbs presented with a flexion contracture without triggering. The condition is usually seen after birth as a flexion contracture of the interphalangeal joint. The term 'congenital' is a misnomer because patients acquire the deformity after birth. The term 'trigger' is inaccurate as most thumbs show a fixed-flexion contracture without triggering. We suggest that rather than 'congenital trigger thumb' a more appropriate description of this disorder is 'acquired thumb flexion contracture in children'. If the contracture persists after one year of age, treatment by dividing the A-1 pulley is simple and effective.
我们对4719名新生儿进行了前瞻性研究，以确定扳机指的先天性发病率。未发现病例。另有15名年龄在15至51个月的儿童因该病接受了手术。出生时未发现这种异常情况，所有拇指均表现为屈曲挛缩，无扳机现象。这种情况通常在出生后表现为指间关节的屈曲挛缩。“先天性”这个术语是用词不当，因为患者是在出生后才出现畸形。“扳机”这个词不准确，因为大多数拇指表现为固定的屈曲挛缩，无扳机现象。我们建议，对于这种疾病，更合适的描述是“儿童获得性拇指屈曲挛缩”，而不是“先天性扳机指”。如果挛缩在一岁后仍持续存在，通过切开A-1滑车进行治疗简单有效。
