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Original Research

Perioperative Complications And Risk Factors In Degenerative Lumbar Scoliosis Surgery For Patients Older Than 70 Years Of Age

, , &
Pages 2195-2203 | Published online: 16 Dec 2019
 

Abstract

Study design

Multivariate analysis of retrospective registry data.

Objective

To report the perioperative complication in a large cohort of surgery for elderly degenerative lumbar scoliosis (DLS) patients and to analyze the risk factors.

Summary of background data

The perioperative complication rate and risk factors for patients with DLS remain unclear, especially in elderly population.

Methods

Between November 2015 and June 2018, 98 patients aged 70 or older with DLS received decompression and intervertebral fusion by one spine surgeon at Beijing Xuanwu Hospital. The medical history and comorbidities of all patients were recorded.

Results

The perioperative complication rate was 34.7% in all patients, 11.2% of all patients had major complications, and 31.6% had minor complications. The major complication most commonly seen was wound infection, and the most common minor complication was hypoproteinemia. Elderly patients (>75) had longer hospital stays (17.5 ± 7.9) when compared to younger patients. Two risk factors of perioperative complications were chosen after binary logistic regression analysis: lower BMI and longer instrumented segments. The only risk factor for major complications was longer instrumented level (≥3), and the only risk factor for minor complications was lower BMI.

Conclusion

Our findings indicate that in elderly patients with DLS, lower BMI is a risk factor for minor perioperative complication. Obesity is not a major problem in this population, on the contrary, BMI is a protective factor for perioperative complications. The risk factors for major perioperative complications in elderly patients with DLS are longer instrumented segments but not related to the number of decompression and intervertebral fusion levels. Preoperative comorbidities and advanced age were not associated to a higher perioperative complication rate in elderly patients. The perioperative complication rate in patients with DLS over 70 years of age is found to be acceptable with appropriate perioperative management.

Disclosure

The authors declared that they have no conflicts of interest in this work.