Newmarket Equine Hospital, Cambridge Road, Newmarket, Suffolk, UK.
Equine Vet J. 2012 May;44(3):319-24. doi: 10.1111/j.2042-3306.2011.00438.x. Epub 2011 Aug 18.
Although a well recognised clinical entity, only small numbers of osteochondromata on the caudal distal radius have previously been published and its occurrence in young racing Thoroughbreds has not previously been reported. Identification and management of associated lesions in the deep digital flexor tendon have received scant attention in the literature.
Osteochondromata of the caudal distal radius occur commonly in young racing Thoroughbreds. They vary in size and location, sagittally and proximodistally, but the majority cause impingement damage to the deep digital flexor tendon.
Case records and diagnostic images of horses with osteochondromata of the caudal distal radius were reviewed retrospectively and follow-up information obtained.
Twenty-five osteochondromata were identified in 22 horses, 19 of which were Thoroughbreds. All osteochondromata were metaphyseal. Twenty-two were in the middle one-third of the bone and laceration of the adjacent deep digital flexor tendon was identified in 21 limbs. Treatment in all cases consisted of removal of the osteochondroma with debridement of the deep digital flexor tendon when this was affected. All horses returned to work and none exhibited any evidence of recurrence.
Osteochondromata of the caudal distal radius occur in young racing Thoroughbreds but are also identified in other horses. They have a consistent metaphyseal location and most are found in the middle one-third of the radius. Size varies, but most cause laceration of the adjacent deep digital flexor tendon. Treatment by removal of the mass and debridement of the tendon is associated with a good prognosis.
Osteochondromata of the caudal distal radius are an important cause of tenosynovitis of the carpal sheath of the digital flexor tendons in young racing Thoroughbreds. When present in the most common location of the middle one-third of the bone, they are likely to cause impingement damage to the deep digital flexor tendon. Tenoscopic surgery offers a good prognosis.
虽然是一种公认的临床实体，但以前仅报道过少量发生在桡骨远端尾部的骨软骨瘤，以前也没有报道过在年轻的赛马中出现这种情况。在文献中，对深屈肌腱内相关病变的识别和处理关注甚少。
桡骨远端尾部的骨软骨瘤在年轻的赛马中很常见。它们在大小和位置上存在差异，矢状面和近-远侧，但是大多数会对深屈肌腱造成撞击损伤。
回顾性分析了 22 匹马患有桡骨远端尾部骨软骨瘤的病例记录和诊断图像，并获得了随访信息。
在 22 匹马中发现了 25 个骨软骨瘤，其中 19 个是纯种马。所有骨软骨瘤均为骺软骨。22 个位于骨的中三分之一处，21 个肢体中发现了相邻深屈肌腱的撕裂。所有病例均采用切除骨软骨瘤并切除受影响的深屈肌腱的方法进行治疗。所有马都恢复了工作，没有任何复发的迹象。
桡骨远端尾部的骨软骨瘤发生在年轻的赛马中，但也在其他马中发现。它们具有一致的骺软骨位置，大多数位于桡骨的中三分之一处。大小不一，但大多数会导致相邻深屈肌腱的撕裂。通过切除肿块和肌腱清创术治疗，预后良好。
桡骨远端尾部的骨软骨瘤是年轻纯种马的屈肌腱腕腱鞘滑膜炎的重要原因。当位于最常见的骨中三分之一处时，它们很可能会对深屈肌腱造成撞击损伤。关节镜手术提供了良好的预后。
