March 29, 2017
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Better results seen with wedge-shaped resection, open-door laminoplasty vs laminoplasty alone

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Investigators found patients who underwent wedge-shaped resection of the cranial portion of the posterior bony arch in open-door laminoplasty had better outcomes for cervical range of motion, posterior bony impingement prevention and pain intensity of the neck compared with patients who underwent open-door laminoplasty alone.

In a prospective, double-arm comparative study, researchers randomly grouped 75 patients to undergo either a wedge-shaped resection of the cranial portion of the posterior bony arch during open-door laminoplasty (ODLP, n=38) or ODLP alone (n=37). The range of motion of the cervical spine was the primary outcome. Other outcomes included pain intensity, SF-12 scores, modified Japanese Orthopaedic Association scale scores, bony impingement presence on dynamic lateral radiograph, surgical outcomes and surgery-related complications.

Results showed at 6-months and 1-year postoperatively, the range of motion of the cervical spine was significantly greater in patients who underwent wedge-shaped resection during ODLOP compared with patients who underwent ODLP alone. After 1-year postoperatively, patients who underwent wedge-shaped resection during ODLP had significantly lower pain intensity at the posterior neck. Patients who underwent wedge-resection had 0% posterior bony impingement, whereas, those who underwent ODLP alone had 32.4% bony impingement. Groups had comparable clinical outcomes and surgery-related complications.   by Monica Jaramillo

Disclosure: The researchers report no relevant financial disclosures.