Comminuted intra-articular fracture of the distal radius with rotation of the palmar medial articular fragment: case reports.

Two cases of comminuted intra-articular fracture of the distal radius with rotation of the palmar medial articular fragment are reported. In both cases the palmar medial articular fragment pivoted on the intact volar capsular attachments. This rare injury appears to be a variant of Barton's fracture and requires open reduction and internal fixation for accurate repair of the disrupted distal radial articular surfaces.