Orthopedics
Orthopedic surgery or orthopedics is the branch of surgery concerned with conditions involving the musculoskeletal system. Orthopedic surgeons use both surgical and nonsurgical means to treat musculoskeletal trauma, spine diseases, sports injuries, degenerative diseases, infections, tumors, and congenital disorders.
Most common procedures performed : Knee arthroscopy and meniscectomy, Knee arthroscopy and chondroplasty, Repair of femoral neck fracture, Knee replacement, Hip replacement etc:
Information credit : Wikipedia