Helliwell P S, Evans P F, Wright V
Huddersfield Royal Infirmary, Leeds, England.
J Bone Joint Surg Br. 1994 Jan;76(1):103-6.
The loss of cervical lordosis in radiographs of patients presenting with neck pain is sometimes ascribed to muscle spasm. We performed a cross-sectional study of the prevalence of 'straight' cervical spines in three populations: 83 patients presenting to an accident department with acute neck pain, 83 referred to a radiology department with chronic neck problems, and 80 radiographs from a normal population survey carried out in 1958. Curvature was assessed on lateral radiographs both subjectively and by measurement. The prevalence of 'straight' cervical spines was 19% in the acute cases and 26% in the chronic cases. The 95% confidence interval for the difference was -6.4% to +19.3%. In the normal population 42% showed a straight spine, but a further third of these films had been taken in a position of cervical kyphosis; this probably reflects a difference in positioning technique. Women were more likely than men to have a straight cervical spine, with an odds ratio of 2.81 (95% CI 1.23 to 6.44). Our results fail to support the hypothesis that loss of cervical lordosis reflects muscle spasm caused by pain in the neck.
在颈部疼痛患者的X光片中，颈椎生理前凸的丧失有时被归因于肌肉痉挛。我们对三组人群中“直”颈椎的患病率进行了一项横断面研究：83名因急性颈部疼痛到急诊科就诊的患者、83名因慢性颈部问题转诊至放射科的患者以及1958年进行的一项正常人群调查中的80张X光片。通过主观评估和测量在侧位X光片上评估曲度。“直”颈椎在急性病例中的患病率为19%，在慢性病例中为26%。差异的95%置信区间为-6.4%至+19.3%。在正常人群中，42%的人显示颈椎变直，但这些X光片中另有三分之一是在颈椎后凸位拍摄的；这可能反映了定位技术的差异。女性比男性更有可能有直的颈椎，优势比为2.81（95%CI 1.23至6.44）。我们的结果未能支持颈椎生理前凸丧失反映颈部疼痛引起的肌肉痉挛这一假设。
