🔍 Key Findings
- Fascia lata autograft reconstruction of the FCU tendon successfully treated carpal hyperextension in both dogs.
- Primary repair was not possible in one dog due to complete rupture; a fascia lata graft bridged the tendon gap.
- In the second case, elongated tendon was corrected and reinforced with fascia lata to prevent recurrence.
- Type I external skeletal fixation was used for 6 weeks to support tendon healing in both dogs.
- Postoperative gait and range of motion returned to normal, with no recurrence at 36-month follow-up.
- Ultrasonography aided diagnosis, revealing thinning and echogenic changes in the FCU tendon.
- Histologic findings showed mild, nonspecific muscle changes, suggesting injury rather than a systemic disease.
- No complications occurred, and fascia lata showed potential for biological integration and remodeling into tendon-like structure.

