Open reduction and internal fixation combined with intercarpal ligament repair for the treatment of acute perilunate transscaphoid fracture dislocations of perilunate dislocations

Abstract

Objective To evaluate the results of Open reducdon and internal fixation combined with repairing of the intercarpal ligaments using suture anchors for the treatment of perilunate fracture dislocations or perilunate dislocations. Methods From February 2004 to August 2006,12 cases of perilunate fracture dislocations or perilunate dislocations were treated operatively,in which 8 cases were transscaphoid fracture dislocations and 4 cases were perilunate dislocations.All the fractures were fixed with AO 3.0 mm cannulated screws or 3.0 mm Bold screws,with the scapholunate or lunotriquertral ligaments sutured by Mitek mini suture anchors. Results All cases were followed up for a mean period of 37 months(from 33 to 48 months).All the scaphoid healed primarily,the height of the carpal was maintained well with a mean scapho-lunate angle of 50°(35°to 65°),mean radio-lunate angle of 5°(-10°to 15°),the mean index of carpal height was 0.51(0.50 to 0.53),the ROM of the wrist iS about 92.5°,The grip strength was 76.7% of the contralateral side.The modified Nayo wrist score revealed 1 excellent,4 good,4 fair and 3 poor results.The average score was 72(50to 95). Collclusion The wrist function can be obtained satisfactorily by early open reduction and internal fixation for perilunate fracture disloeations or perilunate dislocations.Carpal instability or carpal collapse can be avoided by Intercarpal fixation and ligaments rear in short term. Key words: Scaphoid bone; Fracture fixation,internal; Reconstruction surgical procedures; Perilunate dislocation