Abstract：
BACKGROUND: Trismus therapy is often delayed after jaw reconstruction to avoid hardware failure or non-union. The aim of this study is to document the forces that have been applied to patients undergoing free flap reconstruction of the oral cavity in the 12 months following oral cavity reconstruction, and to analyze the associations between force and maximal interincisal opening (MIO) over time.
METHODS: Participants with trismus after free flap reconstruction of the oral cavity completed a 10-week jaw stretching program using Restorabite™. Primary outcome measures included the minimum and maximal force applied by a trismus device during rehabilitation, MIO, bone union, and health-related quality of life outcomes up to 12 months postoperatively.
RESULTS: A mean of 20.6 Newtons (N) was used during passive exercises and 38.9 N during active exercises was used during trismus therapy. The mean increase in MIO for the 45 participants after 10 weeks, 6 months, and 12 months of therapy was 8.4 mm (p < 0.001), 12.6 mm (p < 0.001), 12.7 mm (p < 0.001), respectively. There was no significant difference in the mean minimal (p = 0.37) or mean maximal (p = 0.08) force applied between those who underwent osseous free flap reconstruction compared to fasciocutaneous only, respectively. In patients who underwent osseous reconstruction, 25 (67.6%) had complete bone union and 12 (32.4%) had partial union at 12 months postsurgery.
CONCLUSIONS: In participants undergoing osseous free flap reconstruction, there was no association between the force applied to the rates of bone union. Further research to define safe and optimal loading may benefit patients undergoing jaw reconstruction.
METHODS: Participants with trismus after free flap reconstruction of the oral cavity completed a 10-week jaw stretching program using Restorabite™. Primary outcome measures included the minimum and maximal force applied by a trismus device during rehabilitation, MIO, bone union, and health-related quality of life outcomes up to 12 months postoperatively.
RESULTS: A mean of 20.6 Newtons (N) was used during passive exercises and 38.9 N during active exercises was used during trismus therapy. The mean increase in MIO for the 45 participants after 10 weeks, 6 months, and 12 months of therapy was 8.4 mm (p < 0.001), 12.6 mm (p < 0.001), 12.7 mm (p < 0.001), respectively. There was no significant difference in the mean minimal (p = 0.37) or mean maximal (p = 0.08) force applied between those who underwent osseous free flap reconstruction compared to fasciocutaneous only, respectively. In patients who underwent osseous reconstruction, 25 (67.6%) had complete bone union and 12 (32.4%) had partial union at 12 months postsurgery.
CONCLUSIONS: In participants undergoing osseous free flap reconstruction, there was no association between the force applied to the rates of bone union. Further research to define safe and optimal loading may benefit patients undergoing jaw reconstruction.
摘要：
背景：在颌骨重建后，通常会延迟三联疗法，以避免硬件故障或不愈合。这项研究的目的是记录在口腔重建后12个月内对接受口腔游离皮瓣重建的患者施加的力。并分析力与最大切缝开口（MIO）之间随时间的关联。
方法：在口腔自由瓣重建后，使用Restorabite™进行了为期10周的颌骨拉伸计划。主要结果指标包括康复期间由三联物装置施加的最小和最大力。MIO,骨联合,以及术后12个月内与健康相关的生活质量结果。
结果：在被动运动中使用平均20.6牛顿（N），在主动式运动中使用38.9N。10周后，45名参与者的MIO平均增加，6个月,治疗12个月为8.4mm（p<0.001），12.6mm(p<0.001),12.7mm(p<0.001),分别。与仅筋膜相比，接受骨性游离皮瓣重建的患者施加的平均最小（p=0.37）或平均最大（p=0.08）力没有显着差异。分别。在接受骨重建的患者中，术后12个月，25例（67.6％）骨完全愈合，12例（32.4％）骨部分愈合。
结论：在接受骨性游离皮瓣重建的参与者中，施加的力与骨愈合率之间没有关联.定义安全和最佳负载的进一步研究可能会使接受颌骨重建的患者受益。
方法：在口腔自由瓣重建后，使用Restorabite™进行了为期10周的颌骨拉伸计划。主要结果指标包括康复期间由三联物装置施加的最小和最大力。MIO,骨联合,以及术后12个月内与健康相关的生活质量结果。
结果：在被动运动中使用平均20.6牛顿（N），在主动式运动中使用38.9N。10周后，45名参与者的MIO平均增加，6个月,治疗12个月为8.4mm（p<0.001），12.6mm(p<0.001),12.7mm(p<0.001),分别。与仅筋膜相比，接受骨性游离皮瓣重建的患者施加的平均最小（p=0.37）或平均最大（p=0.08）力没有显着差异。分别。在接受骨重建的患者中，术后12个月，25例（67.6％）骨完全愈合，12例（32.4％）骨部分愈合。
结论：在接受骨性游离皮瓣重建的参与者中，施加的力与骨愈合率之间没有关联.定义安全和最佳负载的进一步研究可能会使接受颌骨重建的患者受益。
