Division of Spine surgery, Department of Orthopaedic Surgery, Yokohama Minami Kyosai Hospital, Yokohama, Japan.
Spine (Phila Pa 1976). 2010 Jan 1;35(1):32-5. doi: 10.1097/BRS.0b013e3181b839b0.
Our original performance test for evaluating the severity of cervical myelopathy, the triangle step test (TST), was introduced along with an assessment of its validity.
The TST was designed to evaluate the lower extremity motor function objectively and quantitatively. This study aimed to assess the validity of the test by analyzing the relation to the other analytic methods.
Several rating scales and performance tests have been proposed to evaluate the severity of cervical myelopathy. Simple walking test is useful; however, the test is limited for the patients who can walk safely.
Each subject sitting on a chair was instructed to step on marks at each apex of a triangular board and the number of steps in 10 seconds was counted for each foot. The subjects were 270 cervical myelopathy patients who had visited our hospital since 2002. As a control group, 60 healthy adults also underwent this test. All subjects were simultaneously evaluated by the Nurick score, the Japan Orthopedic Association score and the finger grip and release test. An assessment of the effect of surgery was analyzed for 94 patients who underwent surgical treatments.
The mean of the lower count for each subject (TST score) in the control group was 25.4 +/- 3.7 steps, which was superior to 18.4 +/- 5.2 steps for myelopathy patients. TST score significantly correlated to the other analytic measures for cervical myelopathy. Regarding the effect of surgery, a performance of 16.7 +/- 4.5 steps before surgery improved to 21.2 +/- 4.9 steps at follow-up. Patients who could step more than 20 times before surgery, showed greater neurologic recovery.
TST score correlated with other analytic methods for cervical myelopathy. This test is very useful to quantitatively evaluate lower extremity function and its improvement following surgical intervention.
我们最初用于评估颈椎脊髓病严重程度的绩效测试——三角步测试（TST），以及对其有效性的评估。
TST 旨在客观、定量地评估下肢运动功能。本研究旨在通过分析与其他分析方法的关系来评估该测试的有效性。
已有几种评分量表和绩效测试被提出用于评估颈椎脊髓病的严重程度。简易步行测试很有用；然而，对于能够安全行走的患者，该测试存在局限性。
每位坐在椅子上的受试者都被要求踩踏三角板的每个顶点上的标记，并用每只脚在 10 秒内的步数进行计数。受试者为 2002 年以来就诊于我院的 270 例颈椎脊髓病患者。作为对照组，60 名健康成年人也接受了此项测试。所有受试者同时接受 Nurick 评分、日本矫形协会评分和指捏释放测试评估。对 94 例接受手术治疗的患者进行手术效果评估。
对照组每位受试者（TST 评分）的较低计数平均值为 25.4 +/- 3.7 步，明显优于脊髓病患者的 18.4 +/- 5.2 步。TST 评分与颈椎脊髓病的其他分析指标显著相关。关于手术效果，术前 16.7 +/- 4.5 步的表现术后提高到随访时的 21.2 +/- 4.9 步。术前能踏足 20 次以上的患者表现出更大的神经恢复。
TST 评分与颈椎脊髓病的其他分析方法相关。该测试非常有助于定量评估下肢功能及其在手术干预后的改善。
