This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Orthopaedics
Symphalangism is: 
Select and explain. 
A. Reduplication of fingers, B. Fusion of the interphalangeal joints, C. Shortening of the fingers as a result of decreased length of the phalanges, D. Joined fingers
B: Fusion of the interphalangeal joints
Answer: B: Fusion of the interphalangeal joints 
Explanation: Ans. B. Fusion of the interphalangeal jointsFusion of interphalangeal joints usually the middle with the proximal phalanx, it usually accompanies syndactylism.Treatment is by fusing in the functional position of partial flexion