• A P A Greeven, T D W Alta, R E M Scholtens, P de Heer, and F M van der Linden.
• Department of Surgery, K6-R, PO Box 9600, 2300 RC Leiden, Leiden University Medical Centre, The Netherlands. a.p.a.greeven@lumc.nl
• Injury. 2012 Feb 1;43(2):246-51.

AbstractThe purpose of this study was to describe the results of extra-articular and intra-articular fractures, at the base of the first metacarpal, treated with closed reduction and percutaneous fixation with intermetacarpal Kirschner wires. Outcome was evaluated by experienced pain, functional outcome and radiographic indications for arthritis. In total, 25 patients with unstable fractures at the base of the first metacarpal underwent closed reduction and percutaneous fixation of the fracture. Prospectively collected data of 25 consecutive patients were evaluated retrospectively, assessing stability of fixation, operation time and the occurrence of fracture dislocation during and after treatment. All patients were assessed at 1, 3, 6 and 24 months. Follow-up included questionnaires: functional tests including grip and pinch measurement and radiographic analysis for post-traumatic arthritis, using the modified Eaton-Littler classification. In total, 15 patients with extra-articular fractures and 10 patients with intra-articular fractures were treated with this technique. In the group of extra-articular fractures of 15 patients, only one patient had loss of grip strength greater than 20% in comparison with the contra-lateral side (corrected for hand dominance). No clinically important difference was found for pinch strength. One patient experienced functional limitations and was unable to return to a previous hobby. In the patients group with intra-articular fractures, seven patients had a Bennett fracture and three a Rolando fracture. One patient with a Bennett fracture had a loss of pinch strength greater than 20% corrected for hand dominance. One of the three patients with a Rolando fracture had grip loss greater than 20%. None of the patients with intra-articular fractures experienced any functional limitations. The described fixation procedure results in a stable fixation of the fracture fragments, and no secondary dislocation of the fracture occurred. Fractures consolidated within 32 (26-50) days and no new fractures were observed. These results suggest that this technique can be safely used in the treatment of extra-articular fractures as well as intra-articular fractures at the base of the first metacarpal.Copyright © 2011 Elsevier Ltd. All rights reserved.

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