This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
The procedure contraindicated in diabetics 
Select and explain. 
A. Ray amputation, B. Forefoot amputation, C. Syme's amputation, D. Below knee amputation
C: Syme's amputation
Answer: C: Syme's amputation 
Explanation: Cone bearing(prosthesis possible)End bearing(where limb fitting facilities are limited)Below knee (stump= 8cm preferably 10-12 cm below knee) Above knee (stump = 20 cm above knee) Gritti stokes (transcondylar at lower femur) Through kneeSyme's (tibia and fibula are sectioned above the ankle joint preserving blood supply to calcaneus) (Refer: Schwaz's Prinicples of Surgery, 9th edition, pg no: 3300-3303)