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Clinical results of splinting versus observation for pediatric trigger thumb
Koichi Yano1, Mikinori Ikeda2, Masahiro Yoneda3
1Department of Orthopaedic Surgery, Seikeikai Hospital, Minamiyasuicho, Sakai-ku, Sakai City.
Insights
Pediatric trigger thumb treatment using splinting or observation showed similar resolution rates. Both conservative methods are viable options before considering surgery for pediatric trigger thumb.
Area of Science:
- Pediatric Orthopedics
- Hand Surgery
- Rehabilitation Medicine
Background:
- Pediatric trigger thumb involves interphalangeal joint (IPJ) contracture or snapping.
- Conservative management is often preferred before surgical intervention.
Purpose of the Study:
- To compare clinical outcomes of dynamic splint therapy versus observation for pediatric trigger thumb.
- To evaluate the efficacy of non-surgical interventions for trigger thumb in children.
Main Methods:
- Retrospective analysis of 129 thumbs in 112 pediatric patients.
- Comparison of outcomes between a hand-based dynamic splint group and an observation group.
- Resolution defined as full IPJ extension or hyperextension.
Main Results:
- Resolution rates were 59% with splinting (31 months follow-up) and 43% with observation (30 months follow-up).
- No statistically significant difference in resolution rates between splinting and observation (P = 0.15).
- 55% overall resolution with conservative treatment, averaging 30 months before potential surgery.
Conclusions:
- Both splint therapy and observation are viable conservative treatment options for pediatric trigger thumb.
- Conservative management can lead to resolution in over half of pediatric trigger thumb cases.
- These non-surgical approaches provide effective alternatives prior to considering surgical intervention.
Abstract:
Patients with pediatric trigger thumb present with fixed contracture of the interphalangeal joint (IPJ) or snapping of the thumb. We applied a hand-based dynamic splint using coils at the IPJ. The aim of this study was to report the clinical outcomes of splint therapy versus observation. One hundred twenty-nine thumbs (112 patients and 57 boys) were examined retrospectively. At initial presentation, parents selected the treatment after explanation of pathology and consents were obtained. Treatment was concluded when full extension or resolution of the involved IPJ was achieved; alternatively, surgical treatment was offered for patients who failed to improve. Improvement in extension loss to 0° and hyperextension was defined as resolution of the IPJ. Surgery was not selected as a first-line treatment strategy in any of the cases in this study. The rate of resolution was 59% at 31 months of follow-up in the splint group (99 thumbs) and 43% at 30 months in observation group (30 thumbs); there was no significant difference between the groups (P = 0.15). Twenty-one thumbs showed locking of the IPJ in the extended position during splint therapy, but all recovered with a 71% rate of resolution. The splint group showed a higher rate of resolution than the observation group; however, there was no significant difference between therapies. Our study showed that 55% of patients with pediatric trigger thumb showed resolution following conservative treatment for an average of 30 months until surgery could be performed under local anesthesia. Splint therapy and observation are viable treatment options prior to surgery.
