The aim of this study was to evaluate the effects of high intensity laser therapy (HILT) on tendon and ligament injury treatment in horses. Twenty six horses with tendinopathies were randomly assigned to a HILT treated or to a non-treated group. Each horse was subjected to the same rehabilitation programme. Horses from the treatment group underwent a series of fifteen HILT treatments with the same parameters. Clinical and ultrasound assessments were performed by the same veterinarian and were carried out before (day 0), during (day 13–15) and after treatment (day 38–40). Clinical evaluation included: pain, swelling and lameness of the affected limb. The ultrasound examination evaluated lesion echogenicity and lesion percentage. After the treatment, pain, swelling and lameness were significantly improved by HILT compared with the control group (p = 0.023, 0.008 and 0.044, respectively). No significant changes were found in lesion echogenicity degree between both groups in measurements taken during treatment (p = 0.188) and after treatment (p = 0.070). For lesion percentage reduction, the statistical modelling showed a significant improvement in the HILT group compared with the control group during (p = 0.038) and after treatment (p = 0.019). In conclusion, HILT promoted analgesic and anti-oedema effects, with visual lameness reduction in horses with tendon and ligament injuries, and reduced lesion percentage but did not influence change in lesion echogenicity.

中文翻译：

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高强度激光治疗对功能性马匹的肌腱和韧带损伤的治疗作用。

这项研究的目的是评估高强度激光治疗（HILT）对马肌腱和韧带损伤的治疗效果。将26例患有肌腱病的马随机分配给HILT治疗组或未治疗组。每匹马都接受相同的康复计划。来自治疗组的马进行了十五次具有相同参数的HILT治疗。由同一位兽医进行临床和超声检查，并在治疗前（第0天），治疗期间（第13-15天）和治疗后（第38-40天）进行。临床评估包括：患肢疼痛，肿胀和me行。超声检查评估了病变的回声性和病变百分比。与对照组相比，HILT治疗后疼痛，肿胀和la行得到了明显改善（p = 0.023、0.008和0.044）。在治疗期间（p = 0.188）和治疗后（p = 0.070），两组之间的病变回声发生度均未见明显变化。对于减少病变百分比，统计模型显示，HILT组在治疗期间（p = 0.038）和治疗后（p = 0.019）与对照组相比有显着改善。总之，HILT促进了镇痛和抗水肿作用，并减轻了腱和韧带损伤的马的视觉la行，降低了病灶百分比，但不影响病灶回声性的变化。