All are True about fracture healing except :: (A) Nutrition affects healing, (B) Stable fixation promotes healing, (C) Compression at fracture site causes nonunion, (D) Hormonal status may affect healing
Answer is C. Compression at fracture site improves healing by inducing callus formation Compression enhances the rate of union in cancellous bone. In coical bones, compression at the fracture site enhances rigidity of fixation, and possibly results in primary bone healing. Ref: Maheshwari 9th ed pg 12.