Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_

Poster
Topic: Arthroplasty - Hip
Abstract number: 24337
COST EFFECTIVENESS OF CONSTRAINED LINERS
Atanu BHATTACHARJEE, M. BAWARISH
Darlington Memorial Hospital, Darlington (UNITED KINGDOM)
Aim - Demonstrating cost effectiveness of uncemented acetabular component with
constrained liners during primary hip replacements on patients with potential risk of
dislocation of prosthetic hip. Method - Retrospective analyses of total hospital
expenditure for 12 patients operated with constrained liners were undertaken &
compared with total cost of closed reduction of prosthetic hip dislocations on 15
patients during 2007-2009. Baseline was hospital cost of standard primary hip
replacement with uncemented acetabular components. Results Cost of operations
was calculated as total of costs of femoral stem, acetabular component, hospital
stay, theatre, pharmacy, x-rays & physiotherapy. A primary hip replacement with
uncemented acetabular cup cost £3727.60 while that with a constrained acetabular
liner cost £4338.00 - thus constrained liners increase cost by 16.37%. Mean follow
up of 12 months on patients with constrained liners showed no dislocations. Each
closed reduction (extra procedure with irredeemable costs) cost £1313.00, increasing
total cost by 35.22%. Conclusion - Constrained liners increase cost of primary hip
replacement but risk of dislocation is reduced. Closed reductions of dislocated hip
increase cost more than that of constrained liner replacement. While closed
reductions have potential for further future dislocations, constrained liners used for
appropriate patients decrease long term cost of care.
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