Jumbo cup or high hip center: is bigger better?
A jumbo cup and a high hip center cup placement are 2 options in the revision of loose acetabular components associated with bone loss. They allow biologic attachment, which is required for long-term fixation. They are easier to use than cages. In my personal series of 564 acetabular revisions from 1986 to 2001, standard-size porous cups with a high hip center were used in 42 (7%) of the cases. Jumbo cups were used in 166 (29%) of the cases. Nineteen percent of the jumbo cups also were placed at a high hip center. The majority of these cups were placed into combined segmental and cavitary defects. The average follow-up was 6.1 years. One jumbo cup and 1 high hip center standard cup were revised for aseptic loosening (1%). The 5-year and 10-year survival rates for shell revision were 95% and 87%, respectively.
Gustke
Kenneth A
KA
Florida Orthopaedic Institute, Temple Terrace, Florida 33637-0925, USA.
D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects / Q000295:instrumentation* / Q000379:methods; D006622:Hip Prosthesis; D006801:Humans; D011475:Prosthesis Failure; D012086:Reoperation; D016896:Treatment Outcome