The barrier effect of laminae : laminotomy versus laminectomy

• Published in: Spinal cord Vol. 38; no. 7; pp. 442 - 444
• Main Authors: YÜCESOY, K, KARCI, A, KILICALP, A, MERTOL, T
• Format: Journal Article
• Language: English
• Published: London Nature Publishing 01-07-2000; Nature Publishing Group
• Subjects: Animals; Biological and medical sciences; Cerebrospinal fluid. Spinal cord. Spinal roots. Spinal nerves; Cicatrix - pathology; Cicatrix - physiopathology; Cicatrix - prevention & control; Dura Mater - pathology; Dura Mater - physiopathology; Dura Mater - surgery; Epidural Space - pathology; Epidural Space - physiopathology; Epidural Space - surgery; Laminectomy - adverse effects; Laminectomy - methods; Male; Medical sciences; Neurosurgery; Postoperative Complications - prevention & control; Rats; Spinal Cord - pathology; Spinal Cord - physiopathology; Spinal Cord - surgery; Spinal Cord Injuries - pathology; Spinal Cord Injuries - physiopathology; Spinal Cord Injuries - surgery; Spine - pathology; Spine - physiopathology; Spine - surgery; Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases; Tropical medicine; Spinal cord; Rat; Scar; Rodentia; Central nervous system; Laminotomy; Laminectomy; Extradural; Pathology; Vertebrata; Mammalia; Surgery; Animal; Fibrosis; Complication; Dura mater; Evolution; Comparative study
• ISSN: 1362-4393; 1476-5624
• DOI: 10.1038/sj.sc.3101029

An experimental study to investigate whether replacement of the laminae (laminotomy) after subliminal procedures can prevent the invasion of scar tissue towards the dura.
Izmir, Turkey.
Laminectomy and laminotomy were performed at different levels on seven rats. Their spinal columns were investigated histopathologically after a period of 3 months.
The histopathological evaluation revealed that the dura and spinal cord were involved by scar tissue at laminectomy area. However, this invasion was not observed at laminotomy levels. This study showed the barrier effect of laminae against fibroblastic activity.
The barrier effect of lamina may affect the surgical outcome related to epidural fibrosis.