Table 1.
Nominal variables for unsuccessful cases.
| Case | Signalment/Use | Lesion location | Diameter/Depth | Other MRI lesion | Outcome |
|---|---|---|---|---|---|
| 1 | 8 y Warmblood gelding/Jumping | Lateral 1/3/Dorsal P3-I | ~1 cm, focal; FT | Mild ISL desmopathy | Retired (lameness) |
| 2 | 14 y Quarter Horse gelding/Team roping | Central 1/3/Dorsal P3-A | ~1.3–1.5 cm, focal; FT | Mild Nb degeneration | PDN 6 mo post-op/EU (lameness) |
| 4 | 14 y Quarter Horse gelding/Barrel racing | Central 1/3/Dorsal P3-A | ~10% dorsal articular surface; FT/PT | Mild Nb degeneration | PDN 4 mo post-op/EU (lameness) |
| 5 | 7 y Quarter Horse gelding/Team roping | Central 1/3/Dorsal P3-A Central 1/3/Central P2-I | ~1 cm lesions (2); FT | STIR hyperintensity in medial Nb | PDN 8 mo post-op/Sound in work |
| 6 | 7 y Quarter Horse gelding/Barrel racing | Central-lateral 1/3/Central P3-I | ~1 cm, focal; FT | EPF/Nb degeneration | Retired (lameness) |
| 7 | 15 y Thoroughbred gelding/3-Day eventing | Central 1/3/Dorsal P3-A | ~1 cm, focal; FT, diffuse fibrillation | EPF/mild navicular bursitis | In work with intermittent lameness, 15 mo post-op |
PDN — palmar digital neurectomy; I — inaccessible; A — accessible; FT — full thickness; PT — partial thickness; ISL — intersesamoidean ligament; Nb — navicular bone; EU — euthanized; EPF — extensor process fragmentation.