Yusof M I, Shif Msm, Abdullah M S
Department of Orthopaedics, Universiti Sains Malaysia, Kubang Kerian, Malaysia.
Department of Radiology, Universiti Sains, Malaysia, Kubang Kerian, Malaysia.
Malays Orthop J. 2015 Mar;9(1):4-10. doi: 10.5704/MOJ.1503.015.
This study was to evaluate the morphological features of degenerative spinal stenosis and adequacy of lateral canal stenosis decompression via unilateral and bilateral laminectomy. Measurements of facet joint angulation (FJA), mid facet point (MFP), mid facet point distance (MFPD), the narrowest point of the lateral spinal canal (NPLC) and the narrowest point of the lateral spinal canal distance (NPLCD) were performed. At L4L5 of the right and left side, the mean distance between the lateral border of the dura and MFP was 1.0 ± 0.2 cm and 1.0 ± 0.3cm respectively. The mean NPLC was seen at 0.7 ± 0.3 and 0.7 ± 0.3 cm cm from the dura. At L5S1 of the right and left side, the mean distance between the lateral border of the dura and MFP was 1.2± 0.2 and 1.3 ± 0.2 cm respectively. The mean NPLC was seen at 0.8 ± 0.4 and 0.9 ± 0.5 cm from the dura. Unilateral laminectomy may result in incomplete decompression.
本研究旨在评估退变性腰椎管狭窄症的形态学特征，以及经单侧和双侧椎板切除术进行侧隐窝狭窄减压的充分性。测量了关节突关节角度（FJA）、关节突中点（MFP）、关节突中点距离（MFPD）、侧椎管最窄点（NPLC）和侧椎管最窄点距离（NPLCD）。在右侧和左侧的L4L5节段，硬脊膜外侧缘与MFP之间的平均距离分别为1.0±0.2cm和1.0±0.3cm。平均NPLC位于距硬脊膜0.7±0.3cm和0.7±0.3cm处。在右侧和左侧的L5S1节段，硬脊膜外侧缘与MFP之间的平均距离分别为1.2±0.2cm和1.3±0.2cm。平均NPLC位于距硬脊膜0.8±0.4cm和0.9±0.5cm处。单侧椎板切除术可能导致减压不彻底。
