頚髄症患者における10秒テスト再テスト信頼性

Test-retest Reliability of the 10-second Test for Patients of Cervical Myelopathy

　術後合併症なく経過した圧迫性頚髄症患者37名を対象に10秒テストの再テスト信頼性を検証した．術後6カ月と12カ月でJOAスコアに有意な変化はなく，神経症状は一定と仮定した．術後6カ月の10秒テストは右26.0±6.1，左25.7±5.9，術後1年で右25.9±5.8，左26.4±5.9であり，級内相関係数は0.74～0.84で，再テスト信頼性は高かった．健常者に比較すると多数回検査（慣れ），治療意欲などの理由により頚髄症患者における10秒テスト再現性は高いものと考えられた．

　We investigated the test-retest reliability of the 10-second test in 37 cervical myelopathy patients without postoperative complications enrolled in the study. Their neurological status was the same at 6 months postoperatively and 12 months postoperatively according to the Japan Orthopaedic Association (JOA) scores. Medical records were reviewed for the results of the 10-second test and showed that at 6 months postoperatively they were 26.0±6.1 on the right and 25.7±5.9 on the left and that at 12 months postoperatively they were 25.9±5.8 on the right and 26.4±5.9 on the left. The intraclass correlation coefficients ranged from 0.74 to 0.84, indicating that the test is highly reliable. The results showed that the 10-second test is a reliable test for use in cervical myelopathy patients, who undergo frequent examinations and have a more cooperative attitude toward examinations than healthy volunteers.