Van Royen Kjell, Scheerlinck Thierry, Van Royen Arn, De Keyzer Pieter-Bastiaan, Baetslé Amaury, Goubau Jean
Department Orthopaedics and Traumatology, UZ Brussel, Brussels, Belgium.
Department Orthopaedics and Traumatology, AZ Damiaan, Ostend, Belgium.
J Hand Surg Eur Vol. 2022 Jun;47(6):618-625. doi: 10.1177/17531934221075921. Epub 2022 Feb 1.
We assess the distribution of trapezial inclination in a young population in order to propose a threshold for trapezial dysplasia. One hundred peritrapezial views were reconstructed from wrist computed tomography scan datasets to measure trapezial inclination. Seventy peritrapezial views were constructed from 10 datasets to assess the influence of radiograph rotation. Mean trapezial inclination in our population was 8° (range 0.2-17.9). Fifteen degrees of radiographic pronation or supination did not alter trapezial inclination significantly. Intra-rater consistency and absolute agreement had an interclass correlation (ICC) of 0.95. Inter-rater consistency and absolute agreement had an ICC of 0.88. Trapezial inclination is a reliable measurement for trapezial dysplasia with an excellent intra-rater and good inter-rater reliability and does not change significantly with 15° of radiographic pronation or supination. These normal values can be used to propose a threshold for trapezial dysplasia in the management of trapeziometacarpal joint instability in the younger population. IV.
我们评估了年轻人群中大多角骨倾斜度的分布情况，以便提出大多角骨发育异常的阈值。从腕部计算机断层扫描数据集重建了100个大多角骨周围视图，以测量大多角骨倾斜度。从10个数据集中构建了70个大多角骨周围视图，以评估X线片旋转的影响。我们人群中的平均大多角骨倾斜度为8°（范围为0.2 - 17.9）。X线片内旋或外旋15°对大多角骨倾斜度无显著影响。同一评估者的一致性和绝对一致性的组内相关系数（ICC）为0.95。不同评估者的一致性和绝对一致性的ICC为0.88。大多角骨倾斜度是评估大多角骨发育异常的可靠指标，同一评估者可靠性极佳，不同评估者可靠性良好，并且在X线片内旋或外旋15°时无显著变化。这些正常值可用于为年轻人群中大多角掌关节不稳定的治疗提出大多角骨发育异常的阈值。四、
