Intrafocal Pinning in Distal Extraarticular Radius Fracture: A Retrospective Study Based on Patient Age.

Background: Percutaneous intrafocal pinning is one of the many surgical options for extraarticular distal radius fracture with minimal comminution. This study aims to describe the role and indications of intrafocal pinning.

Methods: This monocentric, retrospective study included 49 patients who underwent intrafocal pinning for distal radius fractures in 2013 in our French hand surgery department. All the patients underwent posteroanterior and lateral x-ray on days 2 and 45 to measure radial inclination, distal radioulnar index, and volar tilt.

Results: The mean age of the patients was 45.4 years, with women representing approximately 61.2% of the sample (n = 30). The patients were divided into three groups: group A (17-50 y), 26 patients; group B (50-70 y), 15 patients; and group C (>70 y), eight patients. We documented on x-ray images, 21 secondary displacements, including seven in group C. There were three displacements (all in group C) and one surgical revision within 15 days for a previous displacement. The distal radioulnar index increased in all three groups.

Conclusions: The percutaneous intrafocal pinning fixation technique exposes a high risk of complications, especially for those older than 50 years, for whom this technique should be avoided. Overall, due to the frequency of secondary displacements encountered, our first-line treatment favors plate osteosynthesis for all patients. Pinning fixation should only be considered with caution in younger patients if plate osteosynthesis is not possible, but it requires a strict 6-week immobilization. The fracture morphology must also be considered.