Musculoskeletal disorders in neonatal foals.

This research paper looks at different musculoskeletal disorders in newborn horses (foals), their causes, and the approaches to treating them. The study emphasizes the importance of early and accurate diagnosis, along with rapid treatment.

Angular Limb Deformities in Foals

• The paper starts by discussing angular limb deformities, which are common in foals. These are deviations in the foal’s limbs caused by the laxity or flexibility of supporting soft tissues.
• In mild cases, the condition tends to resolve naturally. However, in severe instances, vitals such as external splinting or casting may be required for correction.
• Another cause of limb deformity is the incomplete ossification (hardening) of carpal or tarsal bones, necessitating mandatory external support to prevent worsening deformation and abnormal bone development.

Surgical Interventions for Axial Deviation

• When abnormalities in the growth region of the long bones cause axial deviation, surgical measures are typically required.
• The paper details two techniques used: circumferential periosteal transection and transphyseal bridging, the choice of which is determined by the type and severity of the deformity.

Forelimb Flexor Contractures and Tendon Laxity

• The research discusses forelimb flexor contractures, which can vary significantly in severity and the joints affected.
• A combination of physical therapy and intermittent splint application often proves successful, although surgery may be needed in cases that are unresponsive.
• Flexor tendon laxity, usually a self-correcting condition, might still necessitate physical therapy, restricted exercise, and splinting.

Rotational Abnormalities and Other Anomalies

• Rotational mirror-image deformities are easier to correct in the forelimbs than in the hind limbs and it can usually be managed using frequent corrective hoof trimming.
• Surgical correction might be possible for various other anomalies of the Musculoskeletal system, though pros and cons must be weighed carefully.

Septic Arthritis and Neonatal Osteomyelitis

• Septic arthritis, which is often a consequence of neonatal septicemia, requires early and aggressive treatment. Antibiotics, joint rinsing, and rest are typically recommended.
• The paper also discusses neonatal osteomyelitis, signaling it has a poor prognosis even with prompt, aggressive therapy. It could cause limb growth anomalies or contagious septic arthritis, worsening the prognosis.

Conclusions

• The paper concludes that early diagnosis and immediate, suitable treatment are essential for managing musculoskeletal disorders in foals.
• This is particularly critical when success is evaluated on the basis of the animal’s future athletic function.