Kwon Hoi Young, Kang Hong Je
Department of Orthopedic Surgery, School of Medicine, 65433Wonkwang University Hospital, Iksan, Korea.
J Orthop Surg (Hong Kong). 2020 Sep-Dec;28(3):2309499020969991. doi: 10.1177/2309499020969991.
Trigger finger is stenosing tenosynovitis that occurs in A1 pulley. It usually occurs idiopathically in patients' 40s and 50s. On the other hand, pediatric trigger finger usually occurs before 8 years old in pediatric patients. Even though being rare, a tumor occurred in the soft tissue or bone near flexor tendons can cause a trigger finger. Trigger finger due to osteochondroma is very rare. Furthermore, most cases of trigger finger due to osteochondroma occur in pediatric patients with hereditary multiple osteochondromatosis (HMO). The authors report this case of a trigger finger caused by a solitary osteochondroma that occurred in the proximal portion of the proximal phalanx of the left middle finger, of a 21-year-old patient. The symptoms were relieved after excision of the osteochondroma. If a patient with unusual demographics visits, the cause of trigger finger may not be idiopathic. Evaluation methods such as x-rays and ultrasonography can be helpful to rule out other causes, such as tumors.
扳机指是发生在A1滑车的狭窄性腱鞘炎。它通常在40多岁和50多岁的患者中特发性出现。另一方面，小儿扳机指通常发生在小儿患者8岁之前。尽管罕见，但屈肌腱附近的软组织或骨中出现的肿瘤可导致扳机指。骨软骨瘤引起的扳机指非常罕见。此外，大多数骨软骨瘤引起的扳机指病例发生在患有遗传性多发性骨软骨瘤病（HMO）的小儿患者中。作者报告了该病例，一名21岁患者左手中指近节指骨近端出现的孤立性骨软骨瘤导致了扳机指。切除骨软骨瘤后症状缓解。如果有不符合常见发病情况的患者前来就诊，扳机指的病因可能并非特发性。X线和超声等评估方法有助于排除其他病因，如肿瘤。
