Arthroscopic evaluation of the metacarpophalangeal and metatarsophalangeal joints in horses with parasagittal fractures of the proximal phalanx.
Authors: James Frances M, Smith Matthew R W, Wright Ian M
Journal: Equine veterinary journal
Summary
Parasagittal fractures of the proximal phalanx represent a frequent catastrophic injury in racing Thoroughbreds, yet the intra-articular cartilage and soft tissue damage accompanying these fractures had never been systematically documented via arthroscopy. Frances, Smith and Wright used arthroscopic examination to evaluate the metacarpophalangeal and metatarsophalangeal joints in horses presenting with proximal phalangeal fractures, characterising the full extent of articular surface disruption and associated pathology beyond what radiography alone could reveal. Their findings provide critical insight into secondary damage within the joint space—information previously unavailable to clinicians making prognosis and treatment decisions. Understanding the true magnitude of cartilage involvement and soft tissue trauma directly influences realistic expectations for return to function and rehabilitation potential, making this work valuable for veterinarians counselling owners on fracture management options. These arthroscopic findings should be integrated into existing prognostic frameworks that currently rely heavily on fracture configuration alone, ultimately improving clinical decision-making in this challenging injury pattern.
Read the full abstract on PubMed
Practical Takeaways
- •Arthroscopic examination should be considered in horses with parasagittal proximal phalanx fractures to fully assess intra-articular damage and refine prognosis
- •The extent of articular surface disruption identified arthroscopically is critical for treatment planning and predicting return to athletic function
- •Knowledge of associated joint pathology helps guide rehabilitation protocols and owner counseling regarding long-term soundness
Key Findings
- •Arthroscopic evaluation revealed associated intra-articular damage in horses with parasagittal proximal phalanx fractures
- •Disruption to articular surfaces was documented as a major prognostic determinant in these fractures
- •Metacarpophalangeal and metatarsophalangeal joint involvement was characterized arthroscopically for the first time in this fracture type