• 1Department of Upper Limb Surgery, Beijing Shunyi Hospital, Beijing, 101300, P.R.China;;
  • 2Department of Hand Surgery, the Third Affiliated Hospital of Hebei Medical University. Corresponding author: ZHAO Min, E-mail: zhaomin699@163.com;
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Objective To investigate the diagnose and treatment of intra-articular fracture of the 5th metacarpale base with carpometacarpal joint dislocation (reverse Bennett fracture). Methods Between January 2008 and March 2012, 26 cases of reverse Bennett fracture were treated. There were 20 males and 6 females, aged 19-48 years (mean, 26 years). The injury causes included boxing injury in 19 cases, falling injury in 3 cases, heavy pound injury in 3 cases, and crushing injury in 1 case. According to Lundeen classification, there were 8 cases of type A, 9 cases of type B, 3 cases of type C, and 6 cases of type D. The time from injury to operation ranged 1-8 days with an average of 4 days. All patients underwent open reduction and internal fixation with Kirschner wires, screws, or plates by L-shaped dorsal incision. Results Primary healing was obtained in all incisions; no infection, hematoma, and necrosis occurred after operation. All patients were followed up with an average time of 12.5 months (range, 8-24 months). X-ray films showed that all fractures healed after 6-8 weeks (mean, 6.5 weeks); no delayed union or nonunion and no the 5th carpometacarpal joint dislocation were observed. Two cases had mild osteoarthritis. According to the upper extremity functional evaluation standard by Hand Surgery Branch of Chinese Medical Association, the results were excellent in 22 cases, good in 3 cases, and fair in 1 case, with an excellent and good rate of 96.2%. Conclusion For patients with reverse Bennett fracture, good results can be obtained if early diagnose is done and appropriate internal fixation is selected.

Citation: ZHAO Min,TIAN Dehu,SHAO Xinzhong,LI Dacun,LI Jianfeng,LIU Jingda,ZHAO Liang,LI Hailei,WANG Xiaolei,ZHANG Wentong. DIAGNOSE AND TREATMENT OF INTRA-ARTICULAR FRACTURE OF FIFTH METACARPALE BASE WITH CARPOMETACARPAL JOINT DISLOCATION. Chinese Journal of Reparative and Reconstructive Surgery, 2013, 27(6): 662-665. doi: 10.7507/1002-1892.20130147 Copy

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