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Vet Comp Orthop Traumatol 2016; 29(06): 536-540
DOI: 10.3415/VCOT-15-12-0195
Clinical Communication
Schattauer GmbH

Combined tibial plateau levelling osteotomy and tibial tuberosity transposition for treatment of cranial cruciate ligament insufficiency with concomitant medial patellar luxation

Katherine C. Leonard
1   Department of Clinical Sciences, Cummings School of Veterinary Medicine at Tufts University, North Grafton, MA, USA
,
Michael P. Kowaleski
1   Department of Clinical Sciences, Cummings School of Veterinary Medicine at Tufts University, North Grafton, MA, USA
,
William B. Saunders
2   Department of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences at Texas A&M University, College Station, TX, USA
,
Robert J. McCarthy
1   Department of Clinical Sciences, Cummings School of Veterinary Medicine at Tufts University, North Grafton, MA, USA
,
Randy J. Boudrieau
1   Department of Clinical Sciences, Cummings School of Veterinary Medicine at Tufts University, North Grafton, MA, USA
› Author Affiliations Financial support: Financial support was provided by National Institute of Health, grant NIH 5T35 OD010963. Research support was provided by Cummings School of Veterinary Medicine at Tufts University, grant NIH 5T35 OD010963.
Further Information

Publication History

Received: 02 December 2015

Accepted: 28 July 2016

Publication Date:
19 December 2017 (online)

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Summary

Objectives: To describe the surgical technique and report short-term outcome for combined tibial plateau levelling osteotomy and tibial tuberosity transposition (TPLO-TTT) as an option in the treatment of cranial cruciate ligament insufficiency with concomitant medial patellar luxation.

Methods: Medical records were reviewed (2011–2013) of dogs that underwent a standard tibial plateau levelling osteotomy followed by a tibial tuberosity transposition in the frontal plane and stabilized with pin and tension-band wire fixation as a component of surgical treatment for combined cranial cruciate ligament insufficiency and medial patellar luxation. Signalment, fixation method together with any ancillary procedures, function at the in-hospital follow-up examinations, and any complications were recorded. Healing was assessed retrospectively based on the grading criteria of the International Society Of Limb Salvage.

Results: Fifteen stifle joints in 11 dogs were identified; 13 stifles were available for in hospital follow-up. All 13 achieved union (3 with grade III/IV and 10 with grade IV/IV radiographic healing scores); mean time to healing was 10.6 (± 2.9) weeks. Patellar ligament thickening was also identified radio-graphically in seven of the 13 of stifle joints. All dogs were reported to have mild or no lameness at their last follow-up examination. No catastrophic or major postoperative complications occurred that required additional surgery. Patellar re-luxation did not occur in any of the 13 stifles available for in-hospital follow-up.

Clinical significance: The TPLO-TTT was found to be a reliable and effective technique when used as a part of the treatment of combined cranial cruciate ligament insufficiency with concomitant medial patellar luxation in this series of dogs.

Supplementary Material to this article is available online at http://dx.doi.org/10.3415/VCOT-15-12-0195.

Keywords

Tibial tuberosity transposition - tibial plateau levelling osteo tomy - patellar luxation - TPLO - cranial cruciate ligament insufficiency - medial patellar luxation

 

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