Yamashita T, Minaki Y, Ozaktay A C, Cavanaugh J M, King A I
Department of Orthopaedic Surgery, Sapporo Medical University, Japan.
Spine (Phila Pa 1976). 1996 Mar 1;21(5):538-43. doi: 10.1097/00007632-199603010-00002.
Macroscopic and microscopic investigations of the human lumbar facet joint capsule were undertaken.
To describe the morphologic characteristics of the fibrous capsule of the lumbar facet joints.
Previous biomechanical and neurophysiologic studies by the authors have shown that the lumbar facet joint capsule may be a source of low back pain.
Macroscopic investigation was performed on the facet joint capsules dissected from five fresh adult cadavers. For microscopic studies, facet joint capsules obtained from cadaver dissection and spinal surgeries were stained by the hematoxylin and eosin method and the Elastica-Van Gieson method.
The outer layer of the fibrous capsule is a dense regular connective tissue that is composed of parallel bundles of collagenous fibers. The inner layer of the fibrous capsule consists of bundles of elastic fibers, similar to the ligamentum flavum. In the superior and middle part of the joint, the fibers run in the medial to lateral direction, crossing over the joint gap. In the inferior part of the joint, the fibers are relatively long and run in a superior-medial to inferior-lateral direction, covering the inferior articular recess. They are thicker than the layer in the superior and middle parts of the joint.
Anatomical and histologic features of the lumbar facet joint capsule are different between its outer layer and inner layer. This complex of morphologic factors can affect the biomechanics and neurophysiology of the lumbar facet joint.
对人体腰椎小关节囊进行宏观和微观研究。
描述腰椎小关节纤维囊的形态学特征。
作者先前的生物力学和神经生理学研究表明，腰椎小关节囊可能是下腰痛的一个来源。
对从五具新鲜成人尸体上解剖下来的小关节囊进行宏观研究。对于微观研究，将从尸体解剖和脊柱手术中获得的小关节囊用苏木精-伊红染色法和弹性纤维-范吉森染色法进行染色。
纤维囊的外层是致密的规则结缔组织，由平行的胶原纤维束组成。纤维囊的内层由弹性纤维束组成，类似于黄韧带。在关节的上部和中部，纤维从内侧向外侧走行，跨过关节间隙。在关节的下部，纤维相对较长，从上内侧向下外侧走行，覆盖下关节凹。它们比关节上部和中部的层更厚。
腰椎小关节囊的解剖学和组织学特征在其外层和内层之间有所不同。这种形态学因素的复合体可以影响腰椎小关节的生物力学和神经生理学。
