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首页> 外文期刊>Acta Radiologica >Evaluation of medial acetabular wall bone stock in patients with developmental dysplasia of the hip using a helical computed tomography multiplanar reconstruction technique.
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Evaluation of medial acetabular wall bone stock in patients with developmental dysplasia of the hip using a helical computed tomography multiplanar reconstruction technique.

机译：使用螺旋计算机断层扫描多平面重建技术评估髋关节发育不良的患者的内侧髋臼壁骨储备。

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摘要

BACKGROUND: The technique of medialization has been used to reconstruct acetabula at the level of true acetabula in total hip arthroplasty (THA) in patients with developmental dysplasia of the hip (DDH). Appreciation of the bone stock in the medial acetabular wall is significant for making an optimal acetabular reconstruction plan and avoiding complications. PURPOSE: To evaluate the bone stock of the medial acetabular wall and its relation to the degree of subluxation in patients with DDH using computed tomography (CT). MATERIAL AND METHODS: Helical CT scans of 27 hips were obtained from 21 patients with osteoarthritis secondary to DDH who were scheduled for total hip arthroplasty. Eleven hips belonged to Crowe class I, while 16 hips belonged to Crowe class II/III. The raw CT data were reprocessed in various planes by scrolling multiplanar reformation (MPR). Acetabular opening, depth, and medial bone stock, as indicated by the minimum thickness of the medial acetabular wall, were measured in the transverse reformed MPR plane. RESULTS: The minimum thicknesses of the medial acetabular wall in Crowe-I and Crowe-II/III hips were 3.8+/-2.1 mm and 7.1+/-3.1 mm, respectively, with statistically significant differences between the groups (P<0.05). Furthermore, the bone stock in the medial acetabular wall correlated with the degree of subluxation (R=0.69) and the acetabular depth (R= ;- ;0.71). CONCLUSION: There was significantly more bone stock in the medial acetabular wall in patients with higher-degree subluxation than there was in the less-severe class. This difference should be taken into consideration when reconstructing acetabula in THA in patients with DDH using the technique of medialization.
机译：背景：介导技术已被用于在髋关节发育不良（DDH）患者的全髋关节置换术（THA）中以真正的髋臼水平重建髋臼。评估髋臼内壁的骨量对于制定最佳的髋臼重建计划并避免并发症很重要。目的：通过计算机断层扫描（CT）评估DDH患者髋臼内侧骨的骨量及其与半脱位程度的关系。材料与方法：从21例DDH继发的骨关节炎患者中进行了27髋的螺旋CT扫描，这些患者计划进行全髋关节置换术。 11个臀部属于Crowe一级，而16个臀部属于Crowe级别II / III。通过滚动多平面重构（MPR）在不同的平面上对原始CT数据进行重新处理。在横向重建的MPR平面中测量髋臼开口，深度和内侧骨储备，如内侧髋臼壁的最小厚度所示。结果：Crowe-I和Crowe-II / III髋关节的髋臼内壁最小厚度分别为3.8 +/- 2.1 mm和7.1 +/- 3.1 mm，两组之间具有统计学差异（P <0.05） 。此外，髋臼内壁的骨量与半脱位程度（R = 0.69）和髋臼深度（R =;-; 0.71）相关。结论：高度半脱位的患者比不严重的患者的髋臼内壁的骨量明显更多。使用中介技术在DDH患者的THA中重建髋臼时，应考虑到这种差异。

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