This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Orthopaedics
Gissane's angle in intraarticular fracture of calcaneum - 
Select and explain. 
A. Reduced, B. Increased, C. Not changed, D. Variable
B: Increased
Answer: B: Increased 
Explanation: Bohler's (tuber-joint) angle is reduced in intra-articular calcaneal fractures (normal 24-40°).
The crucial angle of "Gissane" is increased in intra-articular clacaneum fractures (normal 100°).