title: The resolution of protrusio acetabuli treated with Ring's hip prosthesis.
abstract: Seven hips with protrusio acetabuli which showed complete or partial resolution of the protrusion after replacement with Ring's prosthesis are reported. It is suggested that this prosthesis offers a simple and effective method of treating painful protrusion into the pelvis; it allows healing of the medial wall of the acetabulum while avoiding many of the hazards of other methods of treatment.
mesh_terms: D000077:Acetabulum / Q000000981:diagnostic imaging; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000150:complications; D005270:Femur Head / Q000000981:diagnostic imaging; D006622:Hip Prosthesis; D006801:Humans; D007592:Joint Diseases / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery; D008875:Middle Aged; D009068:Movement; D010003:Osteoarthritis / Q000150:complications; D010024:Osteoporosis / Q000150:complications; D011859:Radiography