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- W2366182827 abstract "Objective To provide anatomic basis of choosing donor tendon for opponensplasty by simulating opponensplasty on fresh cadavers by using 18 kinds of donor tendons and evaluating transfer efficacy. Methods Eight flesh cadaver upper limbs were used.Eighteen tendons were used for oppenensplasty.Angles of abduction,pronation,and flexion of the first metacarpal,angles of abduction,pronation,flexion and radial deflation of proximal phalanx of the thumb,and angles of pronation of distal phalanx of the thumb were measured after the procedure.Results When abductor digiti minimi was used,the thumb had the maximum angles of pronation and flexion.If the transverse carpal ligament was used as pulley,angles of abduction and radial deviation were maximal.There was statistically significant difference (P0.05).When extrinsic hand muscles were used as motor tendon for opponensplasty,pulley was created by the flexor carpi ulnafis tendon,at the transverse carpal ligament,or around the border of the distal ulna.Comparison of measurements within each of these three groups showed no statistically significant difference (P0.05).However the difference among these three groups was significant (P0.05).When pulley was made by going around border of the distal ulnar,the angles of pronation and flexion were maximal.If the transverse carpal ligament was used as pulley,the angles of abduction and radial deflation were maximal.Conclusion The difference in force direction of the donor tendons can lead to variations in opponent angle of opponensplasty.If line of pull of the donor tendon is aligned with the direction of abductor pollicis brevis,abduction and radial deflation of the thumb can reach maximal angle.The bigger the angle between donor tendon and the first metacarpal,the bigger the angles of pronation and flexion." @default.
- W2366182827 created "2016-06-24" @default.
- W2366182827 creator A5087845894 @default.
- W2366182827 date "2007-01-01" @default.
- W2366182827 modified "2023-09-26" @default.
- W2366182827 title "Comparative study of various procedures of opponensplasty" @default.
- W2366182827 hasPublicationYear "2007" @default.
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