• Nikolaus Kögl, Ondra Petr, Wolfgang Löscher, Ulf Liljenqvist, and Claudius Thomé.
• Dtsch Arztebl Int. 2024 Jun 28; 121 (13): 440448440-448.

BackgroundLumbar disc surgery is among the more common spinal procedures. In this paper, we report the current treatment recommendations for patients with symptomatic disc herniation.MethodsThis review is based on pertinent publications retrieved by a selective literature search in PubMed using the terms [timing] AND [lumbar disc herniation], supplemented by other relevant articles and guidelines.ResultsSymptoms resolve in 60% to 80% of patients with herniated discs in 6-12 weeks, and in 80% to 90% over the long term (≥ 1 year). According to the guidelines, 6-12 weeks of conservative treatment are recommended in the absence of significant neu - rologic deficits. Early surgery is indicated in case of worsening pain or new onset of neurologic deficits. Lumbar disc herniation associated bladder or bowel dysfunction (cauda equina syndrome) is considered an absolute surgical emergency that requires immediate decompression (within 24 to 48 hours). Patients with severe motor deficits (MRC ≤ 3/5) benefit from early intervention and should be offered surgery within three days, if possible, for the best chance of recovery. The degree of weakness and the duration of symptoms have been identified as risk factors for incomplete recovery. Early surgery can be considered in patients with mild paresis (MRC 4/5) in case of functional impairment (e.g., quadriceps paresis).ConclusionLonger symptom duration and lower motor scores are associated with worse outcome and a lower chance of neurologic recovery. The recovery rate for motor deficits ranges from 33% to 75%, depending on the timing and modality of treatment as well as the motor score.

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