Placement of percutaneous translaminar facet screw: an anatomic study
- VernacularTitle:经皮椎板关节突螺钉固定的应用解剖及影像学研究
- Author:
Sheng LU
;
Yongqing XU
;
Zihai DING
- Publication Type:Journal Article
- Keywords:
Lumbar;
Percutaneous translaminar facet screw;
Anatomy;
Minimally invasive
- From:
Orthopedic Journal of China
2006;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
[Objective]To provide anatomic basement for the clinic appliance of percutaneous thranslaminar facet screw.[Method]From L_1 to L_5,anatomic measurements for screw path length,superior and inferior lamina border thickness in 30 dried lumbar spines,caudal and lateral angles of laminar were measured with CT and X ray.[Result]The superior border of the lamina was relatively thinner from L_1 to L_5,The thickness of the inferior border of the lamina,the mean values of the length of the screw path and lateral angle gradually increased,and the caudal angle of screw placement relative to transverse plane gradually decreased.[Conclusion]A translaminar facet screw with 4.5 mm in diameter is safe.from L_(1~5).Screw should be inserted in inferior lamina border,not in the superior border of the lamina,caudal and lateral angles of laminar should be ajustable to fit the lumbar facet joint.
