Sato Yuta, Ono Takeya, Ishikura Hideki, Aihara Kazuki, Tasaka Atsushi, Umei Namiko, Tsumiyama Wakako, Oki Sadaaki
Department of Physical Therapy, Faculty of Health and Welfare, Prefectural University of Hiroshima: 1-1 Gakuen-cho, Mihara City, Hiroshima 723-0053, Japan.
Department of Rehabilitation, Faculty of Health Sciences, Hiroshima Cosmopolitan University, Japan.
J Phys Ther Sci. 2019 Apr;31(4):336-339. doi: 10.1589/jpts.31.336. Epub 2019 Apr 1.
[Purpose] The purpose of this study was to investigate whether the recovery period of joint contractures differ between treatments with joint fixation with unweighting of the hind limbs and joint fixation alone. [Subjects and Methods] Twelve 10-week-old male Wistar rats were divided into a group with joint fixation of the right ankle joints in full plantar flexion for 1 week (F) and a group with joint fixation and hind limb suspension (FS). Thereafter, the rats were removed from the joint fixation and hind limb suspension for 2 weeks. The ankle dorsiflexion angles during the recovery process of the joint contractures were measured. [Results] The ankle dorsiflexion angles of the F group from the day joint fixation was removed to the seventh recovery day were significantly lower than the pre-experiment values. The ankle dorsiflexion angles of the FS group from the day joint fixation and hind limb suspension were removed to the 10th recovery day were significantly lower than the pre-experiment values. [Conclusion] We found that the period required for the recovery of joint contractures treated with joint fixation with unweighting of the hind limbs was longer than that with joint fixation alone.
[目的]本研究旨在探讨后肢去负荷关节固定术与单纯关节固定术治疗关节挛缩的恢复期是否存在差异。[对象与方法]将12只10周龄雄性Wistar大鼠分为两组,一组将右踝关节完全跖屈固定1周(F组),另一组进行关节固定并后肢悬吊(FS组)。之后,将大鼠解除关节固定和后肢悬吊,持续2周。测量关节挛缩恢复过程中的踝关节背屈角度。[结果]F组从解除关节固定之日至恢复第7天的踝关节背屈角度显著低于实验前值。FS组从解除关节固定和后肢悬吊之日至恢复第10天的踝关节背屈角度显著低于实验前值。[结论]我们发现,后肢去负荷关节固定术治疗关节挛缩的恢复时间比单纯关节固定术更长。