The operative hip.
D000293:Adolescent; D000367:Age Factors; D001170:Arthritis, Infectious / Q000601:surgery; D002648:Child; D002675:Child, Preschool; D004839:Epiphyses, Slipped / Q000601:surgery; D005265:Femoral Neck Fractures / Q000601:surgery; D005593:Fracture Fixation, Internal; D005594:Fracture Fixation, Intramedullary; D050723:Fractures, Bone / Q000601:surgery; D006615:Hip / Q000033:anatomy & histology / Q000601:surgery*; D006618:Hip Dislocation, Congenital / Q000601:surgery; D006801:Humans; D007223:Infant; D007595:Joint Prosthesis; D009984:Orthopedic Fixation Devices; D010007:Osteochondritis / Q000601:surgery