Abstract:
Objective To explore the feasibility of the magnetic correction device for the treatment of mallet finger deformity.
Methods The fresh cadaveric fingers were implanted with permanent magnet nails of corresponding size, and the effects of extending and flexing fingers were observed to analyze the feasibility of this method in treating mallet finger deformity.
Results The soft tissues such as skin and fascia were removed from 5 finger specimens, the finger extensions and flexor tendons were retained, and after the permanent magnet nails were placed, the postoperative function of the affected knuckles were evaluated according to Dargan function evaluation method:excellent in 3 cases, good in 1 case, fair in 1 case, and poor in 0 case. The excellent and good rate was 80%; 15 cadaveric fingers underwent simuiated clinical surgery after all tissues were retained, and permanent magnet nails of the corresponding size were implanted using the palmar approach, and the postoperative affected knuckles function evaluation results:excellent in 10 cases, good in 4 cases, fair in 0 case, and poor in 1 case, and the excellent and good rate was 93.3%. The ranges of flexion motion after operation were the same as those of before operation.
Conclusions The magnetic corrector is feasible for the treatment of mallet finger deformity, and its clinical effectiveness needs further research.
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