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首页> 外文期刊>The Egyptian Journal of Hospital Medicine >Assessment of Pelvic Parameters before and after Postero-lateral Interbody Fusion Surgery in Patient with Lumbo-sacral Instability
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Assessment of Pelvic Parameters before and after Postero-lateral Interbody Fusion Surgery in Patient with Lumbo-sacral Instability

机译：腰-不稳患者后外侧椎体融合手术前后的骨盆参数评估

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Background: pelvic incidence (PI) is a fundamental pelvic anatomic parameter that is specific and constant for each individual and determines pelvic orientation as well as the size of lumbar lordosis (LL). Pelvic incidence (PI) is a descriptor of pelvic morphology and not of pelvic orientation: therefore, its angular value is unaffected by changes in human posture. The pelvic tilt (PT) and the sacral slope (SS) are position-dependent variables and are very useful to characterize the spatial orientation of the pelvis. Pelvic incidence, sacral slope and pelvic tilt are particularly useful because it can be demonstrated that pelvic incidence (PI) is the arithmetic sum of the sacral slope (SS) + pelvic tilt (PT). Objective: this study aimed to determine the effect of Postero-Lateral Inter Body Fusion Surgery (PLIF) in 25 patients with Lumbo-Sacral instability by measuring these three pelvic parameters by plain x- ray before and after surgery. Patients and Methods: when compared to normal populations, pelvic incidence (PI) is significantly higher in spondylolisthesis and the difference in PI tends to increase in a direct linear fashion as severity of the spondylolisthesis increases. The cause effect relationship between pelvic morphology and spondylolisthesis remains to be clarified. Taking into consideration the pelvic parameters stimulated a renewed interest for the radiological evaluation and classification of spino-pelvic alignment in L5-S1 spondylolisthesis. Results: we found that Postero-Lateral Inter Body Fusion Surgery (PLIF) is sucssessful operation for treatment of lumbo sacral instability such as degenerative spondylolisthesis, isthmic spondylolisthesis and post laminectomy instability. In comparison with lateral view x-ray before and after the operation, the pelvic incidence increased and pelvic tilt decreased. Conclusion: PLIF is successfully used to treat degenerative and isthmic spondylolisthesis. PLIF is successful regardless of age, sex and concomitant morbidities such as diabetes mellitus, hypertension and ischemic heart disease.
机译：背景：骨盆发生率（PI）是骨盆的基本解剖参数，对于每个人来说都是特定且恒定的，并决定骨盆的方向以及腰椎前凸的大小（LL）。骨盆发生率（PI）是骨盆形态的描述，而不是骨盆方向的描述：因此，其角度值不受人体姿势变化的影响。骨盆倾斜度（PT）和the骨倾斜度（SS）是位置相关的变量，对于表征骨盆的空间方向非常有用。骨盆发生率，骨倾斜度和骨盆倾斜度特别有用，因为可以证明骨盆发生率（PI）是s骨倾斜度（SS）+骨盆倾斜度（PT）的算术和。目的：本研究旨在通过手术前后X线平片测量这三个骨盆参数，来确定后侧椎体间融合手术（PLIF）在25例腰-不稳患者中的作用。患者与方法：与正常人群相比，脊椎滑脱症的盆腔发病率（PI）明显更高，并且随着脊椎滑脱症严重程度的增加，PI的差异倾向于以直接线性的方式增加。盆腔形态与脊椎滑脱之间的因果关系仍有待阐明。考虑到骨盆参数激发了人们对放射性评估和L5-S1腰椎滑脱椎体-骨盆排列分类的兴趣。结果：我们发现后外侧椎体间融合手术（PLIF）是成功治疗腰部不稳定性，例如退行性腰椎滑脱，峡部型腰椎滑脱和椎板切除术后不稳的手术。与手术前后的X射线透视图相比，骨盆的发病率增加，而骨盆的倾斜度降低。结论：PLIF成功地治疗了退行性和峡部型腰椎滑脱。无论年龄，性别和并发疾病（例如糖尿病，高血压和缺血性心脏病）如何，PLIF都是成功的。

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