Short- and Intermediate-Term Outcomes in 28 Cats that have Undergone a Tibial Plateau Leveling Osteotomy for Cranial Cruciate Ligament Disease.

TPLO effectively treats feline CCL disease with favorable short- and intermediate-term outcomes.

This retrospective case series evaluated tibial plateau leveling osteotomy (TPLO) outcomes in 28 cats (32 stifles) with cranial cruciate ligament (CCL) disease treated across nine hospitals from 2015-2024. Short-term outcomes were assessed using physical examination, radiographic findings, and bone healing scores at 8 weeks, while intermediate-term outcomes were evaluated using owner-reported Feline Musculoskeletal and Pain Index (FMPI) scores at <12 months. Results demonstrated successful lameness reduction from median grade 3 preoperatively to grade 0 postoperatively. Cranial tibial thrust was neutralized in 28/32 stifles, confirming biomechanical effectiveness. Median radiographic bone healing score was 8/10 at 8 weeks, indicating favorable osseous integration. FMPI scores improved significantly, decreasing from median 16 to 4 points. Complications occurred in 9/32 stifles, with eight classified as minor and one major, suggesting reasonable safety. These findings support TPLO as a viable surgical treatment option for feline CCL disease, addressing a procedure traditionally performed more commonly in canine orthopedics.

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