• Sharada Weir, Tzu-Chun Kuo, Mihail Samnaliev, Travis S Tierney, Andrea Manca, Rod S Taylor, Julie Bruce, Sam Eldabe, and David Cumming.
• PHMR, Ltd., Bldg D, Berkeley Works, Berkley Grove, London, NW1 8XY, UK. sharadaweir@phmr.com.
• Eur Spine J. 2019 Apr 1; 28 (4): 863-871.

PurposeTo assess the likelihood of persistent postoperative pain (PPP) following reoperation after lumbar surgery and to estimate associated healthcare costs.MethodsThis is a retrospective cohort study using two linked UK databases: Hospital Episode Statistics and UK Clinical Practice Research Datalink. Costs and outcomes associated with reoperation were evaluated over a 2-year postoperative period using multivariate logistic regression for cases who underwent reoperation and controls who did not, based on demographics, index surgery type, smoking status, and pre-index comorbidities using propensity score matching.ResultsRisk factors associated with reoperation included younger age and the presence of diabetes with complications or rheumatic disease. The rate of PPP after reoperation was much higher than after index surgery, with 79 of 200 (39.5%; 95% CI 32.5%, 46.5%) participants experiencing ongoing pain compared with 983 of 5022 (19.5%; 95% CI 18.5%, 20.7%) after index surgery. Mean costs in the 2 years following reoperation were £1889 higher (95% CI £2, £3809) than for patients with PPP who did not undergo repeat surgery over an equivalent follow-up period. With the cost of reoperation itself included, the mean cost difference for patients who underwent reoperation compared with matched controls rose to £7221 (95% CI £5273, £9206).ConclusionsHigh rates of PPP and associated healthcare costs suggest that returning to the operating room is a complex and challenging decision. Spinal surgeons should review whether the potential benefits of additional surgery are justified when other approaches to managing and relieving chronic pain have demonstrated superior outcomes. These slides can be retrieved under Electronic Supplementary Material.

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