Dislocation of total hip replacements. A comparative study of standard, long posterior wall and augmented acetabular components.
Augmentation of the acetabular component of total hip replacements is a method of increasing stability and preventing recurrent dislocation. We report a series of mechanical experiments designed to evaluate the turning moments and angles required to dislocate standard, long posterior wall and two different augmented prostheses.
Nicholas
R M
RM
Queen's University, Belfast.
Orr
J F
JF
Mollan
R A
RA
Calderwood
J W
JW
Nixon
J R
JR
Watson
P
P
D000077:Acetabulum / Q000503:physiopathology* / Q000601:surgery; D001696:Biomechanical Phenomena; D006617:Hip Dislocation / Q000503:physiopathology*; D006622:Hip Prosthesis; D006801:Humans; D009068:Movement; D011474:Prosthesis Design; D012008:Recurrence