Cost effectiveness of disc prosthesis versus lumbar fusion in patients with chronic low back pain: randomized controlled trial with 2-year follow-up:
2011 (English)In: European spine journal, ISSN 0940-6719, E-ISSN 1432-0932, Vol. 20, no 7, 1001-1011 p.Article in journal (Refereed) Published
When low back pain becomes chronic, surgery is sometimes performed. The gold standard today is lumbar fusion (FUS), using a variety of procedures. Total disc replacement (TDR) aimed at motion preservation is increasing in popularity. This randomized controlled health economic study assesses the cost-effectiveness of TDR (Charité/Prodisc/Maverick) compared with instrumented FUS (posterior lumbar fusion (PLF)/posterior lumbar interbody fusion (PLIF). Social and healthcare perspectives after two years are reported. In all, 152 patients were randomized to either TDR (n=80) or FUS (n=72). Cost to society, (total mean cost/patient, Swedish kronor=SEK, standard deviation) for TDR was SEK 599,560 (400,272), and for FUS SEK 685,919 (422,903) (ns). TDR was significantly less costly from a healthcare perspective, SEK 22,996 (43,055- -1,202). Number of days on sick leave among those who returned to work was 185 (146) in the TDR group, and 252 (189) in the FUS group (ns). Using EQ-5D, the total gain in quality adjusted life years (QALYs) over two years was 0.41 units for TDR and 0.40 units for FUS (ns). Based on EQ-5D, the incremental cost effectiveness ratio (ICER) of using TDR instead of FUS was difficult to analyze due to the “non-difference” in treatment outcome, which is why cost/QALY could not be defined. Using cost-effectiveness probabilistic analysis, the net benefit with CI) was found to be SEK 91,359 (-73,643 – 249,114) (ns).
Conclusion: It is not possible to state whether TDR or FUS is more cost-effective after two years. Since disc replacement and lumbar fusion are based on different conceptual approaches, it is important to follow these results over time.
Place, publisher, year, edition, pages
Springer , 2011. Vol. 20, no 7, 1001-1011 p.
Disc prosthesis; Lumbar fusion; Cost-effectiveness; Cost-utility; Health economic evaluation
Medical and Health Sciences
IdentifiersURN: urn:nbn:se:liu:diva-54289DOI: 10.1007/s00586-010-1607-3ISI: 000292746500002OAI: oai:DiVA.org:liu-54289DiVA: diva2:302555