[Course of conservatively treated acute lumbar root compression syndrome. A computer tomography controlled study]

Area of Science:

• Neurosurgery
• Radiology
• Spinal Medicine

Background:

• Acute lumbar root compression syndrome is often caused by disc herniation.
• Conservative treatment is a common approach for managing this condition.
• The relationship between imaging findings and clinical outcomes requires further investigation.

Purpose of the Study:

• To evaluate the long-term outcomes of conservative treatment for lumbar disc herniation.
• To correlate computed tomography (CT) findings with clinical symptom resolution.
• To explore potential mechanisms underlying clinical improvement in the absence of complete radiological resolution.

Main Methods:

• Follow-up computed tomography (CT) scans were performed on 21 asymptomatic patients.
• These patients had previously undergone a three-step conservative treatment regimen for acute lumbar root compression syndrome.
• CT findings were assessed for changes in disc herniation compared to initial evaluations.

Main Results:

• No deterioration of initial CT findings was observed in any patient.
• Disc herniation persisted on CT in 14 of 21 patients who were symptom-free.
• CT demonstrated moderate regression in 2 patients and marked regression in 5 patients.

Conclusions:

• Clinical improvement in lumbar root compression syndrome can occur despite persistent disc herniation on CT.
• This suggests non-mechanical factors, possibly related to radicular blood supply or root inflammation, play a role in recovery.
• Asymptomatic regression or displacement of herniated disc tissue may also contribute to clinical resolution.