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Arthrodèse de la colonne centrale du carpe

Capitate-lunate fusion

Indications, technique, résultats

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Summary

We have used this operation for the management of pain due to osteoarthritic changes at the radio-scaphoid and capitate-lunate joints. It allows correction of the carpal height by reposition of the flexed lunate, preserves the load bearing capitate-lunate axis, and decompresses the radio-scaphoid joint. We have carried out the procedure in 25 cases. Perilunate instability with osteoarthritic changes were present in 14 wrists; the remainder were consequent to non-union of fractures of the scaphoid with osteoarthrosis, or following complex fracture dislocations. At review 10 patients were free of pain, 12 had occasional pain and 3 were not improved. The mean residual range of movement in the wrist was 49°, with a range from 20° to 80°. Bony union was not achieved in 5 wrists. At operation the lunate is reduced and carpal height restored with realignment of the weight bearing axis. Bone grafts and internal fixation are used.

Résumé

Cette étude prospective de 25 arthrodèses partielles capitato-lunaires permet de conclure à l'efficacité de la méthode. La mobilité résiduelle des poignets contrôlés est supérieure à 50 degrés dans 30% des cas, la moyenne des amplitudes de la série analysée étant de 49 degrés. 17 des 25 poignets opérés supportent une activité normale, à condition d'éviter les contraintes maximales et pour autant que le métier ne nécessite pas une mobilité importante du poignet. 10 des 25 poignets, malgré une arthrose avancée, sont totalement indolores. Un seul patient est invalide et un autre se plaint de douleurs à l'effort. Cette athrodèse se prête plus particulièrement au traitement de l'arthrose radio-scaphoïdienne et capitato-lunaire combinée à une subluxation du lunatum et/ou une dissociation scapho-lunaire avec ou sans pseudarthrose du scaphoïde.

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Sennwald, G., Segmüller, G. Arthrodèse de la colonne centrale du carpe. International Orthopaedics 13, 147–152 (1989). https://doi.org/10.1007/BF00266378

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  • DOI: https://doi.org/10.1007/BF00266378

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