Here is a study that discusses the roles of the ligaments of the upper cervical spine. These are important to have on hand so if we see abnormal movement on a DMX or image, we can determine which ligament may be involved and what position may be better or worse for our patients.
Transverse Ligament: The transverse ligament is the major stabilizing ligament at the atlantoaxial joint. The atlantoaxial joint is responsible for about 47° of rotation at the neck. The transverse ligament permits rotation to occur while the alar ligaments prevent excessive rotation. conducted a study to test the biomechanics of the transverse ligament and other atlantoaxial ligaments. They found that the transverse ligament was most vulnerable to rupture under either rapid or slow loading forces.
Alar: The alar ligaments function as stabilizing structures of the atlantoaxial joint and act to limit axial rotation and
lateral bending on the contralateral side.
This paper discusses all the ligaments and what they do. At Professionally Integrated we want to have access to information like this to help our patients and understand what is wrong. Not just “you have neck or head pain.”
J Neurosurg Spine 14:697–709, 2011 Ligaments of the craniocervical junction