Planned wedge size compared to achieved advancement in dogs undergoing the modified Maquet procedure

M. W. Kapler, Denis J Marcellin-Little, S. C. Roe

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


Objectives: To evaluate the patellar ligament to tibial plateau angle (PL-TPA) and amount of achieved advancement in dogs that underwent the modified Maquet procedure; compare wedge sizes recommended using two different planning techniques (Orthomed and modified tibial tuberosity advancement); and evaluate anatomical factors that predict the wedge size required to obtain a 90° PL-TPA. Methods: Pre- and postoperative radiographs of dogs that had a modified Maquet procedure performed were evaluated for the following: calculated wedge size using two different planning techniques, the actual wedge size used, the achieved tibial tuberosity advancement, and the changes in PL-TPA. Anatomical measurements of the tibia were evaluated and correlated with the actual wedge size. Results: Of the 38 modified Maquet procedures identified, 53% (n = 20) had a PLTPA of 90° ± 5°. Actual achieved advancement of the tibial tuberosity was 30% less than the wedge size used. Changes in PL-TPA and tibial width persisted at eight weeks postoperatively without loss of advancement. The two planning techniques did not result in a significantly different selection of wedge size. Clinical relevance: Current planning techniques for the modified Maquet procedure result in under-advancement of the tibial tuberosity. Both measurement techniques evaluated do not result in appropriate advancement.

Original languageEnglish (US)
Pages (from-to)379-384
Number of pages6
JournalVeterinary and Comparative Orthopaedics and Traumatology
Issue number6
StatePublished - Jan 1 2015
Externally publishedYes


  • Cranial cruciate ligament
  • Maquet procedure
  • MMP
  • Stifle

ASJC Scopus subject areas

  • Animal Science and Zoology
  • veterinary(all)


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