Traumatic medial displacement of Rotalok uncemented acetabular component. A case report.
The failure of uncemented acetabular components has been described in association with component wear, disassembly, and proximal migration. The authors report a case of medial displacement following minor trauma some 18 months after surgery. The component involved differs in design from both press-fit, porous-coated or screw-in, fully threaded acetabular cups. The authors suggest that additional screws should be inserted to enhance long-term stability.
Charnley
G J
GJ
Orthopaedic Surgery Unit, Royal Free Hospital, London, United Kingdom.
Ridge
J
J
Ribbans
W J
WJ
D000058:Accidental Falls; D001863:Bone Screws; D006615:Hip / Q000000981:diagnostic imaging; D006621:Hip Joint / Q000000981:diagnostic imaging; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000000981:diagnostic imaging / Q000601:surgery*; D011474:Prosthesis Design; D011475:Prosthesis Failure; D011859:Radiography