Porter R W, Hibbert C S
Spine (Phila Pa 1976). 1984 Oct;9(7):755-8. doi: 10.1097/00007632-198410000-00018.
Comparisons were made between the symptoms of 131 patients with lysis of the pars interarticularis and 2229 patients without lysis, attending a first referral back pain clinic. The canal diameter measured by ultrasound was compared in the two groups, and the slip ratio measured for those with olisthesis. There were significantly fewer patients who had symptoms associated with disc prolapse and lysis of the pars. It is suggested that an enlarged central spinal canal may protect the patient with a pars defect from disabling root problems in the presence of a disc lesion. The most common symptom in those attending with lytic defects was pain in the back and/or referred pain, occurring with nearly twice the frequency for other attenders at the clinic. The incidence of lysis (5.6%) in patients attending the clinic was probably no greater than its incidence in the general population.
对131例关节突间部溶解患者与2229例无溶解的患者（均为首次转诊至背痛门诊）的症状进行了比较。对两组患者通过超声测量的椎管直径进行了比较，并对椎体滑脱患者测量了滑脱率。伴有椎间盘突出和关节突间部溶解相关症状的患者明显较少。有人提出，在存在椎间盘病变的情况下，扩大的中央椎管可能会保护有椎弓根缺损的患者免受致残性神经根问题的影响。有溶解性缺损的患者中最常见的症状是背部疼痛和/或牵涉痛，其发生频率几乎是该门诊其他患者的两倍。该门诊患者中溶解的发生率（5.6%）可能并不高于一般人群中的发生率。
