Download PDF
Vet Comp Orthop Traumatol 2012; 25(03): 231-238
DOI: 10.3415/VCOT-11-03-0035
Clinical Communication
Schattauer GmbH

Treatment of pes varus using locking plate fixation in seven Dachshund dogs

M. Petazzoni
1   Clinica Veterinaria Milano Sud, Peschiera Borromeo, Milano, Italy
,
T. Nicetto
1   Clinica Veterinaria Milano Sud, Peschiera Borromeo, Milano, Italy
,
A. Vezzoni
2   Clinica Veterinaria Vezzoni, Cremona, Italy
,
A. Piras
3   Oakland Small Animal Veterinary Clinic, Newry, Northern Ireland, UK
,
R. Palmer
4   Veterinary Teaching Hospital, Colorado State University, Fort Collins, CO, USA
› Author Affiliations
Further Information

Publication History

Received 01 March 2011

Accepted 30 January 2011

Publication Date:
19 December 2017 (online)

Also available at
    Permissions and Reprints

Summary

Objectives: To describe the surgical treatment of pes varus in Dachshund dogs by medial opening wedge osteotomy of the distal tibia stabilized with a locking plate system and to retrospectively report the clinical and radiographic outcomes.

Materials and methods: Lameness in nine limbs of seven Dachshund dogs with pes varus deformity was treated with corrective osteotomy at or near the centre of rotation of angulation as defined by the intersection of the proximal and distal mechanical axes determined on caudo-cranial radiographs. Outcomes evaluated included comparison of preand postoperative radiographic measurements of frontal angulation and lameness assessment.

Results: Lameness resolved in eight limbs and improved in one limb. All osteotomies healed and no implant complications were detected. Mean preoperative radiographic measurements were: mechanical medial proximal tibial angle (mMPTA) = 91.1° (range 87.6°-95°), mechanical medial distal tibial angle (mMDTA) = 62.1° (range 51.9°-69.6°). Mean postoperative measurements were: mMPTA 92.4° (range 78°-97.5°), mMDTA 81.8° (range 76°-87°). Measurable undercorrection was common, though seldom visually or functionally evident.

Clinical significance: Pes varus deformity in Dachshunds can be treated by medial opening wedge osteotomy of the distal tibia stabilized with a locking plate system. Care to preserve the lateral cortex of the osteotomy may help avoid under-correction.

Keywords

Pes varus - Dachshund - open wedge - osteotomy - locking plate fixation - Fixin plates
 

  • References

  • 1 Ramadan RO, Vaughan LC. Disturbance in the growth of the tibia and femur in dogs. Vet Rec 1979; 104: 433-435.
    CrossrefPubMedGoogle Scholar
  • 2 Altunatmaz K, Ozsoy S, Guzel O. Bilateral pes valgus in an Anatolian Sheepdog. Vet Comp Orthop Traumatol 2007; 20: 241-244.
    Article in Thieme ConnectPubMedGoogle Scholar
  • 3 Burton NJ, Owen MR. Limb alignment of pes valgus in a giant breed dog by plate-rod fixation. Vet Comp Orthop Traumatol 2007; 20: 236-240.
    Article in Thieme ConnectPubMedGoogle Scholar
  • 4 Johnson SG, Hulse DA, Van Gundy TE. et al. Corrective Osteotomy for Pes Varus in the Dachshund. Vet Surg 1989; 18: 373-379.
    CrossrefPubMedGoogle Scholar
  • 5 Radasch RM, Lewis DF, McDonald DE. et al. Pes Varus Correction in Dachshunds Using a Hybrid External Fixator. Vet Surg 2008; 37: 71-81.
    CrossrefPubMedGoogle Scholar
  • 6 Izumisawa Y, Seno T, Abe R. et al. Axial correction of pes varus by transverse-opening wedge osteotomy and T-plate fixation with beta-tricalcium phosphate (ß-TCP) transplantation in Dachshunds. J Vet Med Sci 2005; 67: 437-440.
    CrossrefPubMedGoogle Scholar
  • 7 McCarthy PE. Bilateral pes valgus deformity in a Shetland Sheepdog. Vet Comp Orthop Traumatol 1998; 11: 197-199.
    Article in Thieme ConnectPubMedGoogle Scholar
  • 8 Paley D. Normal Lower Limb Alignment and Joint Orientation. In: Herzenberg JE. editor. Principles of Deformity Correction. Berlin: Springer Verlag; 2003. pg. 1-18.
    Google Scholar
  • 9 Petazzoni M, Jaeger GH. Radiographic Measurements of the Tibia. In: Atlas of Clinical Goniometry and Radiographic Measurements of the Canine Pelvic Limb. Milano: Merial; 2008. pg. 60-71.
    Google Scholar
  • 10 Dismukes DI, Tomlinson JL, Fox DB. et al. Radiographic measurement of the proximal and distal mechanical joint angles in the canine tibia. Vet Surg 2007; 36: 699-704.
    CrossrefPubMedGoogle Scholar
  • 11 Dismukes DI, Fox DB, Tomlinson JL. et al. Determination of pelvic limb alignment in the large-breed dog: A cadaveric radiographic study in the frontal plane. Vet Surg 2008; 37: 674-682.
    CrossrefPubMedGoogle Scholar
  • 12 Dismukes DI, Tomlinson JL, Fox DB. et al. Radiographic measurement of canine tibial angles in the sagittal plane. Vet Surg 2008; 37: 300-305.
    CrossrefPubMedGoogle Scholar
  • 13 Paley D. Frontal plane mechanical and anatomic axis planning. In: Herzenberg JE. editor. Principles of Deformity Correction. Berlin: Springer Verlag; 2003. pg. 61-97.
    Google Scholar
  • 14 Hette K, Rahal SC, Volpi RS. et al. Radiographic measurement of tibial joint angles in sheep. Vet Comp Orthop Traumatol 2009; 22: 204-209.
    Article in Thieme ConnectPubMedGoogle Scholar
  • 15 Petazzoni M, Urizzi A, Verdonck B. et al. Fixin internal fixator: Concept and technique. Vet Comp Orthop Traumatol 2010; 23: 250-253.
    Article in Thieme ConnectPubMedGoogle Scholar
  • 16 Paley D. Osteotomy Concepts and Frontal Plane Realignment. In: Herzenberg JE. editor. Principles of Deformity Correction. Berlin: Springer Verlag; 2003. pg. 99-154.
    Google Scholar
  • 17 Wagner M. General principles for the clinical use of the LCP. Injury 2003; 34: S-B31-S-B42.
    CrossrefPubMedGoogle Scholar
  • 18 Conkling AL, Fagin B, Daye RM. Comparison of tibial plateau angle changes after tibial plateau leveling osteotomy fixation with convetional or locking screw technology. Vet Surg 2010; 39: 475-481.
    CrossrefPubMedGoogle Scholar
  • 19 Larson AN, Rizzo M. Locking plate technology and its applications in upper extremity fracture care. Hand Clin 2007; 23: 269-278.
    CrossrefPubMedGoogle Scholar
  • 20 Koval KJ, Hoehl JJ, Kummer FJ. et al. Distal femoral fixation: A biomechanical comparison of the standard condylar buttress plate, a locked buttress plate, and the 95-degree blade plate. J Orthop Trauma 1997; 11: 521-524.
    CrossrefPubMedGoogle Scholar
  • 21 Ji-Hoon B, Jong-Keon O, Chang-Wug O. et al. Technical difficulties of removal of locking screw after locking compression plating. Arch Orthop Trauma Surg 2009; 129: 91-95.
    CrossrefPubMedGoogle Scholar