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Benefits of epidural methylprednisolone in a unilateral lumbar discectomy: a matched controlled study
1Section of Neurosurgery, Kennebec Valley Medical Center, Augusta, Maine.
Abstract:
The effects of instilling methylprednisolone acetate (MP) (Depo-Medrol) onto the exposed nerve root during a unilateral lumbar laminotomy (either L4 or L5) for disc excision was studied in 43 patients (primary: 35; repeated procedure: 8). The results were compared with two similarly matched control groups without the steroid drug. All 86 patients preoperatively experienced radicular pain to the calf, and were operated on by one surgeon. Four parameters, studied during the postoperative hospital stay, were compared between the control and MP series. The MP (primary/repeat) groups' (a) stay was reduced by 37/40%, respectively; (b) need for strong narcotic drugs was decreased by 64/70%; (c) need for milder pain medication was decreased by 49/72%; and (d) need for spasm medication was reduced by 77/59%. The paired t test indicated that there is a statistical difference between the MP and control groups' results because of the use of MP, with confidence levels of 0.9927-0.9999 in the primary group, and 0.9806-0.9913 for three of the four parameters in the repeat group. Intraoperative application of epidural steroid drugs such as MP, in a unilateral low-lumbar discectomy, leads to a shorter hospital stay because of less pain and spasm.
Insights
Instilling methylprednisolone acetate (MP) during lumbar discectomy significantly reduces postoperative pain and hospital stays. This steroid application also decreases the need for narcotic and other pain medications in patients undergoing spinal surgery.
Area of Science:
- Neurosurgery
- Pharmacology
- Pain Management
Background:
- Radicular pain to the calf is a common symptom requiring surgical intervention.
- Unilateral lumbar laminotomy for disc excision is a standard surgical procedure.
- Postoperative pain and medication requirements impact patient recovery and hospital stay.
Purpose of the Study:
- To evaluate the efficacy of intraoperative methylprednisolone acetate (MP) instillation on nerve roots during lumbar discectomy.
- To compare postoperative outcomes between patients receiving MP and a control group.
Main Methods:
- A study involving 86 patients undergoing unilateral lumbar laminotomy (L4 or L5) for disc excision.
- 43 patients received intraoperative methylprednisolone acetate (MP) (Depo-Medrol) instillation onto the exposed nerve root.
- Results were compared to two matched control groups (43 patients) who did not receive the steroid.
Main Results:
- MP groups experienced a 37-40% reduction in hospital stay compared to controls.
- Need for strong narcotic drugs decreased by 64-70% in the MP groups.
- Need for milder pain and spasm medications was significantly reduced (49-77%) in the MP groups, with high statistical confidence.
Conclusions:
- Intraoperative epidural steroid application, specifically methylprednisolone acetate, during unilateral low-lumbar discectomy effectively reduces postoperative pain and spasm.
- This leads to a significantly shorter hospital stay and decreased reliance on pain and spasm medications.