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  • Eur Spine J · Jul 2023

    More help than harm: surgery for metastatic spinal cord compression is associated with more favorable overall survival within a propensity score analysis.

    • Lukas Leitner, Gerhard Bratschitsch, Anna Kostwein, Patrick Sadoghi, Maria Smolle, Andreas Leithner, and Florian Posch.
    • Department of Orthopedics and Trauma, Medical University of Graz, Auenbruggerplatz 5, 8036, Graz, Austria. lukas.leitner@medunigraz.at.
    • Eur Spine J. 2023 Jul 1; 32 (7): 246824782468-2478.

    PurposeIndication for surgical decompression in metastatic spinal cord compression (MSCC) is often based on prognostic scores such as the modified Bauer score (mBs), with favorable prognosis suggestive of surgery and poor prognosis of non-surgical management. This study aimed to clarify if (1) surgery may directly affect overall survival (OS) aside from short-term neurologic outcome, (2) explore whether selected patient subgroups with poor mBs might still benefit from surgery, and (3) gauge putative adverse effects of surgery on short-term oncologic outcomes.MethodsSingle-center propensity score analyses with inverse-probability-of-treatment-weights (IPTW) of OS and short-term neurologic outcomes in MSCC patients treated with or without surgery between 2007 and 2020.ResultsAmong 398 patients with MSCC, 194 (49%) underwent surgery. During a median follow-up of 5.8 years, 355 patients (89%) died. MBs was the most important predictor for spine surgery (p < 0.0001) and the strongest predictor of favorable OS (p < 0.0001). Surgery was associated with improved OS after accounting for selection bias with the IPTW method (p = 0.021) and emerged as the strongest determinant of short-term neurological improvement (p < 0.0001). Exploratory analyses delineated a subgroup of patients with an mBs of 1 point who still benefited from surgery, and surgery did not result in a higher risk of short-term oncologic disease progression.ConclusionThis propensity score analysis corroborates the concept that spine surgery for MSCC associates with more favorable neurological and OS outcomes. Selected patients with poor prognosis might also benefit from surgery, suggesting that even those with low mBs may be considered for this intervention.© 2023. The Author(s).

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