Osteomyelitis in adult horses, often associated with trauma or iatrogenic infection following surgery, usually presents as a focal area of infected bone. Diffuse osteomyelitis, affecting both the cortex and medulla, along the full length of a bone is encountered less frequently and treatment of such infections is not well reported in horses. The 2-year-old Warmblood mare in this case was diagnosed with diffuse osteomyelitis affecting the 4th metacarpal bone with concurrent unicortical fracture of the third metacarpal bone following traumatic injury. Computed tomography (CT) aided diagnosis in this case, providing critical additional detail to that obtained with radiography and ultrasound. This case highlights the value of CT in the diagnosis of diffuse osteomyelitis. This is the first reported case of diffuse osteomyelitis caused by Clostridium perfringens in horses. Successful treatment in this case consisted of surgical debridement of the associated abscess, followed by systemic and locoregional antimicrobial therapies.

中文翻译：

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产气荚膜梭菌引起的马第四掌骨弥漫性骨髓炎

成年马的骨髓炎通常与手术后的创伤或医源性感染有关，通常表现为受感染骨骼的焦点区域。弥漫性骨髓炎，累及皮质和髓质，沿骨骼全长发生的频率较低，并且在马中这种感染的治疗没有得到很好的报道。在这种情况下，2 岁的温血母马被诊断出患有影响第四掌骨的弥漫性骨髓炎，并在外伤后第三掌骨并发单皮质骨折。在这种情况下，计算机断层扫描 (CT) 有助于诊断，为通过放射线照相和超声获得的信息提供关键的附加细节。该病例突出了CT在弥漫性骨髓炎诊断中的价值。这是首例报告的弥漫性骨髓炎病例马身上的产气荚膜梭菌。在这种情况下，成功的治疗包括对相关脓肿进行手术清创，然后进行全身和局部抗菌治疗。