Gundle Kenneth R, Punt Stephanie E, Mattioli-Lewis Tressa, Conrad Ernest U
*Department of Orthopaedics & Rehabilitation, Oregon Health & Science University, Portland, OR †Department of Orthopaedics & Sports Medicine, University of Washington ‡Department of Orthopedics & Sports Medicine, Seattle Children's Hospital, Seattle, WA.
J Pediatr Orthop. 2017 Apr/May;37(3):e192-e196. doi: 10.1097/BPO.0000000000000857.
The purpose of this study was to test the validity of a consumer-oriented activity monitor in adolescents and young adults undergoing limb salvage for primary bone malignancies.
A cross-sectional population of participants with an average age of 16 (range 12 to 22) years produced 472 days of activity monitoring during 25 evaluations periods alongside patient-reported outcome measures.
Average daily steps ranged from 557 to 12,756 (mean=4711) and was moderately associated with the short-form (SF) 36 physical component subscale (r=0.46, P=0.04) as well as the SF6D health state utility measure (r=0.48, P=0.04), but not the SF36 mental component subscale (P=0.66) or Toronto extremity salvage score (P=0.07). Time from surgery was strongly correlated with average daily steps (r=0.7, P<0.001).
A made-for-consumer activity monitor provided real-world data regarding the outcome of adolescent and young adult limb salvage, and evidence of validity in this population. Such lower cost, user-friendly devices may facilitate assessment of free-living activity and allow novel comparisons of treatment strategies.
Level II-diagnostic.
本研究旨在测试一款面向消费者的活动监测器在接受保肢治疗的原发性骨恶性肿瘤青少年和年轻成年人中的有效性。
平均年龄为16岁（范围12至22岁）的参与者横断面人群在25个评估期内进行了472天的活动监测，并同时收集了患者报告的结局指标。
平均每日步数从557步至12756步不等（均值 = 4711步），与简短健康调查问卷（SF）-36身体成分量表（r = 0.46，P = 0.04）以及SF6D健康状态效用测量值（r = 0.48，P = 0.04）呈中度相关，但与SF-36心理成分量表（P = 0.66）或多伦多肢体挽救评分（P = 0.07）无关。术后时间与平均每日步数密切相关（r = 0.7，P < 0.001）。
一款面向消费者的活动监测器提供了有关青少年和年轻成年人保肢治疗结果的真实世界数据，并证明了在该人群中的有效性。此类低成本、用户友好的设备可能有助于评估日常活动，并允许对治疗策略进行新颖的比较。
II级——诊断性。
