Fracture of hip prostheses due to inadequate welding.
Twenty-five patients underwent total hip arthroplasty using a copy of a well-known prosthesis during the period 1974-1976. Five of the prostheses fractured through the neck after 5-12 years. There were no prodromal symptoms and no trauma preceded the fractures. Technical analysis revealed that inadequate welds were responsible.
Department of Orthopedics, University Hospital, Lund, Sweden.
P
P
Aspenberg
L
L
Kolmert
L
L
Persson
R
R
Onnerfält
D000368:Aged; D005260:Female; D005265:Femoral Neck Fractures / Q000209:etiology*; D006622:Hip Prosthesis / Q000592:standards*; D006801:Humans; D008297:Male; D008855:Microscopy, Electron, Scanning; D010003:Osteoarthritis / Q000601:surgery; D011475:Prosthesis Failure; D014896:Welding / Q000592:standards*