Comparison of conventional and alternative arthroscopic approaches to the palmar/plantar pouch of the equine distal interphalangeal joint.
Authors: Fowlie J G, O'Neill H D, Bladon B M, O'Meara B, Prange T, Caron J P
Journal: Equine veterinary journal
Summary
# Editorial Summary Arthroscopic treatment of distal interphalangeal joint (DIPJ) pathology requires careful portal placement, yet the conventional palmar/plantar approach risks unintentionally breaching both the digital flexor tendon sheath and navicular bursa—a potentially serious complication when managing septic DIPJ cases, where such iatrogenic communication could catastrophically spread infection. Fowlie and colleagues compared conventional arthroscopic access routes with alternative approaches using anatomical and cadaveric methodology to identify safer portal techniques that would minimise these risks. The research demonstrated that modified approach angles and portal locations could successfully visualise and treat palmar/plantar DIPJ pathology whilst significantly reducing the likelihood of inadvertent penetration into adjacent synovial structures. For practitioners performing arthroscopic DIPJ interventions—particularly lavage of suspected or confirmed septic joints—these findings suggest that technique refinement and precise portal placement are critical to preventing secondary infection of the tendon sheath or navicular bursa, both of which carry substantial morbidity and guarded prognosis. Adopting alternative approaches where the clinical situation warrants them may represent an important risk-mitigation strategy, especially in cases where infection control is paramount.
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Practical Takeaways
- •When performing DIPJ arthroscopy, carefully select your approach portal to avoid creating unwanted communication with the DFTS and navicular bursa, especially important when treating septic DIPJ
- •Be aware that conventional approaches have inherent anatomical risks; consider alternative portal placement techniques described in this comparison
- •If septic DIPJ is suspected, technique selection matters because compromised joint compartmentalization will reduce treatment effectiveness
Key Findings
- •Conventional arthroscopic approaches to the palmar/plantar DIPJ carry risk of inadvertent penetration of the digital flexor tendon sheath and navicular bursa
- •Iatrogenic communication between DIPJ, DFTS, and navicular bursa would compromise arthroscopic lavage efficacy in septic DIPJ cases
- •Alternative arthroscopic approaches are described to reduce risk of unintended compartment penetration during DIPJ procedures