Equine Veterinary Education最新文献

Bone oedema-like lesion is characterised by hyperintense signal in short tau inversion recovery (STIR) sequences on magnetic resonance imaging (MRI). Bone oedema-like lesions involving the enthesis of the collateral ligament (CL) of the distal interphalangeal joint (DIPJ) have not been investigated as a cause of lameness. This pattern was detected using low field MRI in nine forelimbs of eight horses. Lesions were found in the medial and the lateral collateral fossae of the distal phalanx in five and four feet; the lateral fossa of the middle phalanx was also abnormal in one foot. The STIR signal was graded as ‘severe’, ‘moderate’ and ‘mild’ in two, two and five feet, respectively, predominantly involved the dorsal two-thirds of the fossa. The lesion was the only pathology in six feet, while in three, the ipsilateral CL presented abnormalities. Follow-up MRI was available for two horses revealing a reduction in STIR signal. Five horses resumed a lower level of athletic activity, while three returned to the same or a higher level. Bone oedema-like lesion at the CL enthesis is a potential cause of lameness even if the CL appears normal. The prognosis is good, although further studies with a larger number of horses are required.

Rendle, D.I. & Gough, S.L. (2025) Pharmaceutical treatment of equine glandular gastric disease: A contextualised review of recent developments. Equine Veterinary Education, 37, 271–280. Available from: https://doi.org/10.1111/eve.14047.

On page 273 in the first paragraph of text, the following wording ‘Sucralfate is a complex polyammonium hydroxide salt’ is incorrect.

The correct sentence should be read as below.

Sucralfate is a complex polyalluminiym hydroxide salt that has several theoretical benefits (none of which have been confirmed in horses).

We apologise for this error.

Subchondral lucencies (SCLs) of the medial femoral condyle (MFC) are a cause of lameness in young horses, potentially affecting future athletic performance. Due to the widespread use of pre-sales screening radiographs for Thoroughbred weanlings and yearlings, these lesions are frequently identified at various stages of progression without the manifestation of clinical signs. Treatment for horses without lameness or effusion is not recommended as most do not develop clinical signs. Conversely, conservative treatments, such as reduced exercise and the use of non-steroidal anti-inflammatory medications or intra-articular therapies, typically yield suboptimal outcomes in clinically significant SCLs, and these will frequently be presented for surgical intervention. This report documents five yearling horses with MFC SCLs that had received speculative intra-articular (IA) injections of 10 mg triamcinolone acetonide (TCA) and 40 mg of gentamicin sulphate (GS) into the medial femorotibial joint (MFTJ). Treatments had been initiated by the attending veterinarians based on their own circumstantial impressions that treatment might help improve some radiographically observed MFC SCLs detected on weanling screening radiography. All cases in this series became acutely lame on the treated limbs, developing marked effusion of both the MFTJ and the femoropatellar joint (FPJ). Clinical assessment and synovial fluid analysis confirmed that all cases were non-septic. Due to the development of clinical signs, surgical management was advised. Before surgery, affected joints did not show additional radiographic changes compared to initial radiographs. While examining the MFTJ and FPJ using standard arthroscopic techniques, large areas of detached and partially detached cartilage were present on the caudal aspect of the distal patella, the lateral and medial trochlear ridges and the central articular surface of the MFC. These lesions had the appearance of acute delamination of the articular cartilage, exposing an underlying, pale, avascular subchondral bone plate below. This case series is the first to report iatrogenic articular cartilage damage in the MFTJ and FPJ of thoroughbred yearlings treated for early MFC SCLs with recommended therapeutic doses of IA TCA and GS. This case series demonstrated that IA injections of TCA and GS in juvenile horses with MFC SCLs can have negative effects on articular cartilage. We propose that IA corticosteroids should not be used in young horses with MFC SCLs on radiographs but without clinical signs and owners should be apprised of this potential complication. Further research into the potentially negative effects of IA corticosteroids on the cartilage of juvenile horses would be appropriate.