Lesions of the peritendinous–periligamentous soft tissues of the tarsus (plantar fasciitis) commonly result in a curb-like appearance and are considered overrepresented in Standardbred racehorses; however, plantar fasciitis is also quite common in endurance horses. Nineteen endurance horses of different ages (median: 7 years; range: 3–13) and athletic activity level comprising a total number of 25 plantar fasciitis cases were described in this study. In nine cases, injury developed during a training session, and in 16 cases, it developed during competition. In 18 cases, there was swelling, heat and pain on palpation, and in six cases, only swelling was detected. Eight cases were not lame at the time of examination, while in 17 cases, lameness ranged from grades 1–3 on the American Association of Equine Practitioners modified grading scale. The degree of swelling was significantly related to the lameness grade. Ultrasonography revealed differing amounts of thickening of the plantar fascia plantar to the superficial digital flexor tendon and peritendinous–periligamentous oedema of heterogeneous appearance. Horses were treated conservatively with several combinations of rest, controlled exercise, ice-therapy, corticosteroids, local application of working counterirritants and therapeutic shoeing. Seventeen of 25 cases (68%) did not develop re-injury after treatment and rehabilitation, whilst eight of 25 (32%) developed one or more re-injury/injuries. Overall, 21 of 25 cases (84%) returned to the previous or a higher level of competition; in one case (4%), the injury was the cause of retirement from athletic activity. Plantar fasciitis can be considered a sport-related injury in endurance horses of all ages and athletic activity level. Re-injury rate is low; however, adequate rest and rehabilitation protocols are important. Plantar fasciitis rarely leads to retirement from athletic activity, but it can result in 2–5 months out of training and competition.

中文翻译：

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19匹耐力马的足底筋膜炎：诊断、治疗和随访

跗骨腱周-韧带周软组织的损伤（足底筋膜炎）通常会导致类似马牙的外观，并且被认为在标准种赛马中出现过多；然而，足底筋膜炎在耐力马中也很常见。本研究描述了 19 匹不同年龄（中位数：7 岁；范围：3-13）和运动活动水平的耐力马，共 25 例足底筋膜炎病例。9 例是在训练期间受伤，16 例是在比赛中受伤。18例触诊有肿、热、痛，6例仅见肿胀。8 例在检查时没有跛行，而在 17 例中，根据美国马术从业者协会修订的分级量表，跛行范围为 1-3 级。肿胀程度与跛行等级显着相关。超声检查显示足底筋膜至浅指屈肌腱和腱周-韧带周围水肿不同程度的增厚。马接受了几种保守治疗，包括休息、控制运动、冰疗、皮质类固醇、局部应用抗刺激剂和治疗性穿鞋。25 例中有 17 例 (68%) 在治疗和康复后未发生再损伤，而 25 例中有 8 例 (32%) 发生了一次或多次再损伤/损伤。总体而言，25 例中有 21 例（84%）恢复到之前或更高级别的比赛；在一个案例 (4%) 中，受伤是从体育活动中退役的原因。足底筋膜炎可以被认为是所有年龄和运动活动水平的耐力马的运动相关损伤。再伤率低；然而，充足的休息和康复方案很重要。足底筋膜炎很少会导致退出体育活动，但可能会导致 2-5 个月的训练和比赛中断。