Awalt P, Lavin N L, McKeough M
Cranio. 1989 Oct;7(4):275-85. doi: 10.1080/08869634.1989.11746267.
Forward head posture has long since been associated with a number of clinical problems treated by the fields of physical therapy and dentistry. The consistent and longstanding difficulty in the diagnosis and treatment of these conditions has been a lack of a clear understanding of the anatomical and biomechanical conditions that underly forward head posture. It has been reported that there is a narrowing of the cervical interspaces in forward head posture with the greatest change being between C4-5 and C5-6. These observations were made by viewing lateral radiographic films, yet the size of the foramina can only be viewed using oblique views. This study used oblique radiographic views of the intervertebral foramina to determine if there is a difference in the size of the intervertebral foramina in the forward head posture versus the normal head posture. The intervertebral foramina of the cervical vertebra were found to be larger in the forward head posture from levels C3 to T1. These results conflict with previous observations, suggesting that additional research is needed to assist in determining the underlying mechanisms responsible for the pain associated with forward head posture.
长期以来，头部前倾姿势一直与物理治疗和牙科领域所治疗的一些临床问题相关。在这些病症的诊断和治疗中，一直存在且长期存在的困难是，对导致头部前倾姿势的解剖学和生物力学状况缺乏清晰的认识。据报道，头部前倾姿势时颈椎间隙变窄，其中C4 - 5和C5 - 6之间的变化最大。这些观察结果是通过观察侧位X线片得出的，然而椎间孔的大小只能通过斜位片观察。本研究使用椎间孔的斜位X线片来确定头部前倾姿势与正常头部姿势时椎间孔大小是否存在差异。结果发现，从C3到T1水平，头部前倾姿势时颈椎的椎间孔更大。这些结果与之前的观察结果相矛盾，表明需要进行更多研究以协助确定导致与头部前倾姿势相关疼痛的潜在机制。
