Background
The outcomes literature on proximal phalanx fractures in children is sparse. The purpose of this study is to report the complications and outcomes of displaced proximal phalanx fractures after treatment with closed reduction and percutaneous pinning.
Methods
A retrospective chart review identified 105 patients treated with closed reduction and percutaneous pinning of displaced proximal phalanx fractures. Specific complications were recorded for all patients. Thirty-one of these patients returned more than 1 year after surgery for assessment including visual analog scales of pain level, functional ability, and aesthetics. Objective measurements included range of motion, grip and pinch strength, and finger deformity. Radiographs were taken to assess deformity.
Results
Five of the 105 patients (4.8%) had a complication including infection, pin site complication, or malunion. Thirty- six had stiffness and 31 ultimately underwent hand therapy to regain motion. Subcondylar fractures were associated with a greater likelihood of stiffness. In the 31 patients returning for assessment, the median visual analog scale score was 0 for pain (none), function (full), and aesthetics (perfect). Range of motion, grip, and pinch strength were equivalent to the contralateral side. Seven of the 31 patients (22.6%) had a measureable coronal plane deviation averaging 5° (range 3°-13°) on radiographs. Deviation was associated with subcondylar fractures and a worse aesthetic VAS. Deviation was not associated with worse outcomes overall.
Conclusions
Pediatric patients with a displaced proximal phalanx fracture treated with closed reduction and percutaneous pinning have an initial notable complication rate related to stiffness; subcondylar proximal phalanx fractures are more commonly affected. At greater than 1 year follow up, patients had full motion, no pain, and were happy with both function and appearance despite minor deformity in some. These complication data may help better inform patients and families prior to surgical intervention.