Dyson S J, Kidd L
Equine Clinical Unit, Animal Health Trust, Newmarket, Suffolk, UK.
Equine Vet J. 1993 Mar;25(2):93-8. doi: 10.1111/j.2042-3306.1993.tb02915.x.
Analgesia of the distal interphalangeal (DIP) joint and of the navicular bursa was performed independently in the lame or lamer forelimb of 59 horses, in which lameness was significantly improved by perineural analgesia of either the palmar digital or palmar (abaxial sesamoid) nerves. In 3 horses no improvement was detected. Lameness was improved by analgesia of the DIP joint but there was no response to analgesia of the navicular bursa in 3 horses. In 12 horses, lameness was improved by analgesia of the navicular bursa but intra-articular analgesia resulted in no change. Forty-one horses responded both to analgesia of the navicular bursa and intra-articular analgesia of the DIP joint. Synovial fluid was retrieved from all DIP joints but from only one navicular bursa. It is suggested that a positive response to analgesia of the DIP joint does not necessarily imply that pain arises from the joint per se, but a positive response to intra-bursal analgesia probably reflects pathology of the bursa per se, the navicular bone and/or supporting ligaments and/or the DDFT. Radiographic abnormalities of the navicular bone in the lame or lamer limb were detected in 35 horses, all of which showed some response to analgesia of the navicular bursa. In 25 of these horses (71%) changes were only identifiable in the palmaroproximal-palmarodistal oblique views.(ABSTRACT TRUNCATED AT 250 WORDS)
对59匹马跛行或更跛的前肢的远侧指间关节（DIP）和舟状囊进行独立镇痛，这些马通过掌侧指神经或掌侧（远轴籽骨）神经的神经周围镇痛，跛行得到显著改善。3匹马未检测到改善。3匹马通过DIP关节镇痛跛行得到改善，但对舟状囊镇痛无反应。12匹马通过舟状囊镇痛跛行得到改善，但关节内镇痛无变化。41匹马对舟状囊镇痛和DIP关节的关节内镇痛均有反应。从所有DIP关节采集了滑液，但仅从一个舟状囊采集了滑液。提示对DIP关节镇痛的阳性反应不一定意味着疼痛源于关节本身，但对囊内镇痛的阳性反应可能反映了囊本身、舟状骨和/或支持韧带和/或指深屈肌腱的病变。在35匹马中检测到跛行或更跛肢体的舟状骨有影像学异常，所有这些马对舟状囊镇痛均有一定反应。其中25匹马（71%）的变化仅在掌近端-掌远端斜位片上可识别。（摘要截短于250字）
