Demirbüken İlkşan, Özyürek Seher, Angın Salih
Department of Physical Therapy and Rehabilitation, Faculty of Health Sciences, Marmara University, Istanbul, Turkey.
School of Physical Therapy and Rehabilitation, Dokuz Eylül University, Izmir, Turkey
Prosthet Orthot Int. 2016 Dec;40(6):682-688. doi: 10.1177/0309364615612251. Epub 2015 Oct 28.
Knee osteoarthritis has commonly been associated with a symptom of pain resulting in an inter-limb weight-bearing asymmetry during functional tasks. Patellar tendon strap is one of the non-pharmacologic interventions to alleviate knee pain.
To investigate the immediate effect of a patellar tendon strap on weight-bearing asymmetry during squatting in people with unilateral knee osteoarthritis.
Cross-sectional study.
Ten patients with unilateral knee osteoarthritis and 10 healthy subjects were included in the study. Weight-bearing asymmetry of patients was assessed using a weight-bearing squat test during squatting at 30° and 60° both with and without patellar tendon strap. Pain intensity was assessed during squatting in unstrapped and strapped conditions with Visual Analog Scale.
The decrease in weight-bearing asymmetry values immediately after wearing patellar tendon strap during 30° (p = 0.006) and 60° (p = 0.011) of squatting tests was significantly higher in knee osteoarthritis patients than in healthy subjects. Reported pain intensity was similar in unstrapped and strapped conditions (p = 0.066).
The results of this study showed improved inter-limb weight-bearing symmetry during squatting. Further research with larger sample sizes investigating the effect of patellar tendon strap on weight-bearing asymmetry during functional activities in people with knee osteoarthritis is warranted.
Patellar tendon straps (easily fit and cheap unlike knee braces) had more improvements in inter-limb weight-bearing symmetry during squatting in people with knee osteoarthritis compared to healthy subjects. This study is a new insight for future studies to investigate clinical benefits of wearing patellar tendon straps in this population.
膝关节骨关节炎通常与疼痛症状相关，导致在功能任务中肢体间负重不对称。髌腱带是缓解膝关节疼痛的非药物干预措施之一。
研究髌腱带对单侧膝关节骨关节炎患者蹲姿时负重不对称的即时影响。
横断面研究。
本研究纳入10例单侧膝关节骨关节炎患者和10名健康受试者。在佩戴和不佩戴髌腱带的情况下，通过负重蹲姿测试评估患者在30°和60°蹲姿时的负重不对称情况。使用视觉模拟量表评估在不佩戴和佩戴髌腱带情况下蹲姿时的疼痛强度。
在30°（p = 0.006）和60°（p = 0.011）蹲姿测试中，膝关节骨关节炎患者佩戴髌腱带后负重不对称值的下降幅度明显高于健康受试者。在不佩戴和佩戴髌腱带的情况下，报告的疼痛强度相似（p = 0.066）。
本研究结果表明蹲姿时肢体间负重对称性得到改善。有必要进行更大样本量的进一步研究，以调查髌腱带对膝关节骨关节炎患者功能活动中负重不对称的影响。
与健康受试者相比，髌腱带（与膝关节支具不同，易于佩戴且价格便宜）在膝关节骨关节炎患者蹲姿时对肢体间负重对称性有更大改善。本研究为未来研究调查该人群佩戴髌腱带的临床益处提供了新的见解。
