Septic osteitis of the distal phalanx: findings and surgical treatment in 18 cases.

The research article reports on 18 cases of septic osteitis in the distal phalanx of horses that were diagnosed and surgically treated between 1990 and 1996. The study concludes that despite the high rate of post-operative complications and up to 12 months recovery period, surgical treatment of septic pedal osteitis generally yields positive outcomes.

Summary of Findings

• Between 1990 and 1996, a total of 18 cases of septic osteitis of the distal phalanx were diagnosed and confirmed through surgery. This condition affects the bone at the distal (farthest) end of the horse’s limb.
• The primary radiographic finding was focal bone lysis, a condition whereby bones are destroyed by the body’s own cellular activity.
• In four horses, bone fragments or sequestra were detected. One of these cases was linked with a broken plantar process, a structure at the rear of the distal phalanx.

Surgical Treatment and Results

• All horses were treated with open debridement, a surgical procedure that involves removing unhealthy or infected tissue to promote healing.
• Following the initial treatment, the septic process resurfaced in four horses. One horse was euthanized due to an infection in the navicular bursa (a sac filled with fluid that provides cushioning around the joints) resulting from a pathological fracture.
• The other three horses that experienced a recurrence of the infection responded well to further debridement.
• There was an occurrence of a pathological fracture in another horse after surgery.
• All surviving horses showed no signs of lameness three months after the operation, but complete healing varied, taking anywhere from one month to up to a year.

Long-Term Follow-Up

• Long-term follow-up was possible for 14 cases. In these cases, one horse was retired, while the rest were able to return to work performing at similar levels as prior to their condition.
• Despite the occasional post-operative complication and extended recovery periods of up to 12 months, the study suggests that surgical treatment of septic pedal osteitis typically offers a fair to good prognosis.