Overview
Mechanical low back pain often involves structural issues like monosegmental discopathy, characterized by acute, disabling pain and specific motion abnormalities such as the "instability catch." 1Diagnosis
Clinical History: Repeated severe and disabling acute mechanical back pain symptoms.
Imaging: MRI revealing monosegmental or bi-segmental discopathy.
Physical Examination: Identification of an irregular lumbar motion pattern, notably the "instability catch" during transition from flexion to standing.
Outcome Measures: Utilization of VAS pain scores and SF-36 physical function scores for assessment post-treatment. 1Management
First-Line Treatments: Conservative management including physical therapy, activity modification, and possibly bracing.
Adjunctive Treatments: For selected patients with persistent symptoms and specific imaging/clinical criteria, surgical intervention such as open PLIF (Posterior Lumbar Interbody Fusion) may be considered.
Surgery: Smaller fusion procedures performed on an overnight basis for patients meeting specific criteria, aiming spine stabilization. 1Special Populations
No Specific Guidance Provided: The abstracts do not provide detailed recommendations for pregnancy, pediatrics, elderly patients, or those with comorbidities. 1Key Recommendations
Consider surgical stabilization (e.g., PLIF) for patients with mechanical low back pain characterized by monosegmental discopathy, recurrent severe pain, and an identifiable "instability catch" motion pattern, after conservative measures fail. (Evidence: Moderate) 1
Utilize validated outcome measures such as VAS pain scores and SF-36 physical function scores to evaluate treatment efficacy in these patients. (Evidence: Expert opinion) 1
Smaller fusion procedures can be offered on an overnight basis as part of a standardized perioperative care protocol for appropriately selected patients. (Evidence: Weak) 1References
1 Bednar DA, Bednar ED. Internal lumbar disc derangement with instability catch from monosegmental discopathy. The forgotten mechanical and kinetic surgical back pain syndrome. Clinical neurology and neurosurgery 2022. link