Opposition of the thumb is the most important component of normal hand function, especially in pinch and its loss constitutes a significant disability.
Restoration of the opposition of the thumb by tendon transfer is one of the most useful tendon transfer in the hand surgery.
Restoration of opposition by tendon transfer has been reported by many investigators.
Basic requisite to all techniques is the selection of one extrisic, expendable, healthy muscle-tendon unit to be used as a motor and its transfer to a point on the thumb at a suitable angle to pull the thumb toward the position of opposition.
Each
technique has advantages, disadvantages and technical limits.
We analyzed 12 cases of opponensplasty performed at Severance Hospital during from may 1986 to May 1991.
@ES The results were as follows:
@EN 1. There were 10 cases in men and 2 cases in women and the mean age was 22 years.
2. We performed the procedures in 6 cases of machinery injury, 3 electric injury, 2 glass injury, and 1 poliomyelitis.
3. Four kinds of surgical technique preformed in 12 cases: Burkhalter technique using the muscle-tendon unit of extensor indicis proprius in 4 cases, Littler and Cooley technique using abductor digiti quinti in 3 cases, Phallen and Miller
technique
using extensor carpi ulnaris in 3 cases and Riordan technique using flexor digitorum sublimis in 2 cases.
4. The follow-up period ranged from 12 months to 3 years 3 months (mean, 1 year 6 months).
5. According to the jacob and Thompson's criteria, we analysed the results of the operation. There were 8 cases in excellent, 3 cases in fair and 1 cse in poor results.
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