A nerve root decompression position identified by 3D CT scan: the modified reversed contralateral axial rotation position for patients with lumbar disc prolapse

Review written by Dr Sarah Haag info

Key Points

  1. The modified reversed contralateral axial rotation (MRCAR) position can increase the cross-sectional area (CSA) of the lumbar intervertebral foramen (LIVF).
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BACKGROUND AND OBJECTIVE

Lumbar radiculopathy is characterized by nerve root compression and foraminal constriction. The impact of physiotherapy interventions are variable, and the mechanisms of action are not well understood.

The purpose of this study was to observe the real-time and short-term influence of the MRCAR trunk posture on the cross-sectional area (CSA) of the lumbar intervertebral foramen (LIVF) and SLR range in patients with unilateral lumbar disc prolapse and radiculopathy using three-dimensional CT (3D-CT) scan imaging.

Lumbar radiculopathy is characterized by nerve root compression and foraminal constriction.
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The modified reversed contralateral axial rotation position can have a temporary, positive impact on neural tension in individuals with a unilateral disc prolapse.

METHODS

  • 90 male subjects aged 20 to 40 years, diagnosed with unilateral lumbar disc prolapse with radiculopathy, underwent 3D-CT scans, 48 hours apart.
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