The aim of this study was to evaluate the anatomy of the wrist joint capsule on the distal radius. As such the extent of the joint capsule and the limits of attachment in relation to the articular surface were determined. Furthermore, the study also determined whether there was any reflection of the capsule onto the distal radius. Fifty cadaveric specimens, preserved according to Thiel's method, were assessed. After careful dissection the distance between the chondral line of the carpal articular surface and three defined points on each of the palmar and dorsal aspects of the radius were measured. In none of the specimens was there any variation in the course and extent of the joint capsule. Using external fixators for managing fractures of the distal radius, pins and wires can be placed subchondrally close to the articular capsule. The risk of intraarticular infection, due to pin tract infection in intraarticularly positioned pins, is very low.
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