Abstract
A study of finger deformity was performed in 42 cases with Duchenne type muscular dystrophy.
The results were as follows.
1. Thirty-nine cases showed finger deformity.
2. Most characteristic deformity was hyperextension of PIP joint, and typical swan neck deformity was seen in only one case.
3. The finger deformity beginning at PIP joint of middle finger developed later at DIP joint and MP joint.
4. The degree of deformity was more prominent in the left fingers than in the right.
