Objective: To assess the relationship between health-related quality of life (HRQOL) and spinal sagittal parameters in patients with degenerative and isthmic spondylolisthesis before and after surgery, and to provide a biomechanical basis for improving the clinical prognosis of such patients. Methods: A retrospective analysis of 63 patients with lumbar spondylolisthesis who received lumbar fusion surgery in the Department of Spine Surgery, Tianjin Union Medical Center from December 2017 to June 2020 was carried out. There were 16 males and 47 females with a mean age of (59±8) years. Subgroup analyses were conducted based on disease type (degenerative lumbar spondylolisthesis (DS) and the isthmic spondylolisthesis (IS)) and HRQOL scores. Patients were evaluated post-operatively to observe the improvement of symptoms and quality of life. The relationship between operative related factors, HRQOL scores before and after surgery, and spino-pelvic sagittal parameters (including sagittal axis of the spine, lumbar lordosis angle, pelvic incidence angle, pelvic tilt angle (PT), sacral tilt angle, matching degree of pelvic incidence angle (PI) and lumbar lordosis angle (LL), lumbar 1 vertebra plumb line, upper lumbar curve, lower lumbar curve) in the two groups were analyzed. The correlation between the improvement of HRQOL scores and spino-pelvic sagittal parameters in the DS group and the IS group was analyzed and compared. Results: There were significant differences between postoperative HRQOL scores compared with those before the operation in both the DS and IS groups at three times of follow-up after the operation (all P<0.05). There was no difference in the last HRQOL score, the number of surgical segments, operation time and intraoperative blood loss between the two groups (all P>0.05). The parameters of PT and PI-LL in DS patients with VAS back pain score>3 and ≤3 were statistically different (13.7°±6.4° vs 26.6°±7.4°, 5.1°±8.2° vs 18.2°±13.1°, respectively, both P<0.05), similar results were obtained in IS patients (14.1°±6.9° vs 16.4°±8.7°, 2.9°±9.7° vs 6.8°±9.8°, respectively, both P<0.05). In addition, the parameters of PT and PI-LL between patients with ODI>20 and ≤20 were all statistically different in the two groups at the last follow-up after surgery (all P<0.05). The improvement of VAS back pain score in DS and IS groups was significantly related to the improvement of PT value, respectively (r=0.76, 0.78, both P<0.05). The PT, LL and PI-LL were significantly correlated with the ODI in the DS group (r=0.60, 0.62, 0.50, all P<0.05). There was also a correlation between the improvement of ODI and PT, LL and PI-LL in the IS group, respectively (r=0.22, 0.41, 0.76, all P<0.05). Conclusions: Certain correlation exists between the HRQOL and spinal sagittal parameters in patients with degenerative and isthmic spondylolisthesis before and after surgery. For the treatment of lumbar spondylolisthesis and improvement of quality of life, the primary goal is to reconstruct the matching degree of the lumbar lordosis angle and PI, and to reduce the PT value to the normal range by tilting the pelvis forward.

目的： 探讨退变性腰椎滑脱（DS）及峡部裂性腰椎滑脱（IS）患者手术前后脊柱矢状位影像参数与健康相关生活质量评分的关系。 方法： 回顾性分析2017年12月至2020年6月在天津市人民医院脊柱外科采用腰椎融合手术治疗的63例腰椎滑脱患者的临床资料。男16例，女47例，年龄（59±8）岁。依据疾病类型（DS及IS）和健康相关生活质量（HRQOL）评分差异进行分组，评估术后患者的症状及生活质量改善情况，分析两组患者手术操作相关因素及手术前后HRQOL评分差异与患者脊柱骨盆矢状位参数的关系。对比分析DS组和IS组患者HRQOL评分改善情况和脊柱骨盆影像学参数二者之间的相关性。 结果： DS组与IS组患者术后3次随访HRQOL评分与术前差异均有统计学意义（均P<0.05）。两组患者术后末次HRQOL评分与手术节段数、手术时间及术中出血量差异均无统计学意义（均P>0.05）。依据患者术后末次HRQOL评分对两组疾病患者行组内分析，DS组术后末次视觉模拟评分（VAS）>3分患者和≤3分患者之间骨盆倾斜角（PT）及骨盆入射角（PI）与腰椎前凸角（LL）匹配度（PI-LL）差异均有统计学意义（分别为13.7°±6.4°比26.6°±7.4°、5.1°±8.2°比18.2°±13.1°，均P<0.05）；同样，IS组术后末次VAS评分两组间PT和PI-LL差异亦均有统计学意义（分别为14.1°±6.9°比16.4°±8.7°、2.9°±9.7°比6.8°±9.8°，均P<0.05）。DS及IS两组中术后末次随访Oswestry功能障碍指数（ODI）>20分与≤20分患者的PT和PI-LL差异均有统计学意义（均P<0.05）。DS及IS两组患者的VAS评分改善情况与PT值呈正相关（r=0.76、0.78，均P<0.05）。DS组的PT、LL及PI-LL与ODI指数呈正相关（r=0.60、0.62、0.50，均P<0.05）；IS组的ODI指数改善与PT、LL及PI-LL亦存在相关性（r=0.22、0.41、0.76，均P<0.05）。 结论： DS及IS患者手术前后矢状位参数与生活质量具有一定相关性，重建LL与PI的匹配程度，并使骨盆前倾，将PT值降低至正常范围是治疗腰椎滑脱提高生活质量的重要目标。.