Abstract
Fixing palmar ulnar corner fragments of distal radial fractures can be challenging. We described the palmar ulnar corner fragment morphology in a retrospective cohort study of 40 patients who underwent preoperative wrist computed tomography scans. Palmar ulnar corner fractures were categorized based on articular cross-sectional area, sagittal angulation relative to the radius long axis, palmar cortical length, radioulnar width and associated palmar radiocarpal subluxation. Three types emerged: type 1 fragments involved 37% (SD 10) of the radiocarpal articular surface and were extended in the sagittal plane; type 2 fragments involved 28% (SD 10) of the articular surface and had a long palmar cortex, of which 57% had palmar carpal subluxation; and type 3 fragments involved 13% (SD 2) of the articular surface, had a short palmar cortex and all had palmar carpal subluxation. Understanding palmar ulnar corner fragment morphology may guide optimal reduction and fixation strategy and prevent palmar radiocarpal subluxation, especially in type 3 fractures.
Original language | English (US) |
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Pages (from-to) | 300-309 |
Number of pages | 10 |
Journal | Journal of Hand Surgery: European Volume |
Volume | 49 |
Issue number | 3 |
DOIs | |
State | Published - Mar 2024 |
Keywords
- Anatomy
- distal radius fracture
- lunate facet
- volar ulnar corner
ASJC Scopus subject areas
- Surgery