Rubin Guy, Monder Oded, Zohar Rinat, Oster Ann, Konra Ofra, Rozen Nimrod
Orthopedic Department, Ha’Emek Medical Center, Afula, Israel. guytalr@ bezeqint.net
Orthopedics. 2010 Oct 11;33(10):729. doi: 10.3928/01477447-20100826-02.
Toe-touch weight bearing and partial weight bearing are commonly prescribed orders. The purpose of this study is to evaluate the validity of toe-touch weight bearing and partial weight bearing regimens. Twenty-five orthopedic surgeons participated in the study. They were asked to answer a questionnaire regarding toe-touch weight bearing and partial weight bearing definitions, and were asked to bear weight partially according to the accepted definitions of each order. Weight bearing on the affected limb was measured by the SmartStep System (Andante Medical Devices, Ltd, Omer, Israel). There was a 40% success rate for toe-touch weight bearing as measured by kilograms and 58% as measured by percentage of body weight. There was a 22% success rate for partial weight bearing as measured by kilograms and 50% success rate as measured by percentage of body weight. For toe-touch weight bearing as measured by kilograms, 52% exerted a mean 15.9 kg more than the maximum. For partial weight bearing as measured by kilograms, 64% exerted too much weight with an average of 14.2 kg more than the maximum. There was a significantly higher success rate for the percentage of body weight order than the kilogram order. The partial weight bearing order with the percent body weight order had a lower mean deviation from desired performance. This study and others demonstrate the need for standardization of weight bearing orders.
足尖触地负重和部分负重是常见的医嘱。本研究的目的是评估足尖触地负重和部分负重方案的有效性。25名骨科医生参与了该研究。他们被要求回答一份关于足尖触地负重和部分负重定义的问卷，并根据每个医嘱的公认定义进行部分负重。通过SmartStep系统（以色列奥默的Andante医疗设备有限公司）测量患侧肢体的负重情况。以千克为单位测量时，足尖触地负重的成功率为40%，以体重百分比为单位测量时成功率为58%。以千克为单位测量时，部分负重的成功率为22%，以体重百分比为单位测量时成功率为50%。以千克为单位测量足尖触地负重时，52%的人施加的平均重量比最大值多15.9千克。以千克为单位测量部分负重时，64%的人施加的重量过多，平均比最大值多14.2千克。以体重百分比为单位的医嘱成功率显著高于以千克为单位的医嘱。按体重百分比医嘱进行部分负重时，与期望表现的平均偏差较小。本研究及其他研究表明有必要对负重医嘱进行标准化。
