ISSN 2398-2950      

Arthrodesis: pantarsal

ffelis
Contributor(s):

Sorrel Langley-Hobbs


Introduction

  • To fuse the tibiotalar joint (and adjacent joints), thereby preventing painful movement at the tarsus.
  • A surgical challenge as the tarsus is a high motion joint with a standing angle between 90 and 110° (more flexed in the cat than in the dog).
  • See arthrodesis overview Arthrodesis: overview.

Method

Uses

Advantages

Medial bone plate fixation

  • Medial application of customised bone plate loads it on its edge and increases its resistance to bending forces, thus improving on its inherent weaknesses.
  • Easy surgical approach and easy positioning of the cat for surgery.

Disadvantages

  • Standing angle of 90-110° puts large forces on implants.
  • Stress riser on the narrow tibia - could lead to tibial fracture.
  • Bones are small, and difficult to use tension band principle of fixation (palmar surgical approach).
  • Difficult to stop motion at the tibiocalcaneal joint, which can cause residual lameness by pull of the Achilles tendon.

Requirements

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Preparation

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Procedure

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Aftercare

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Outcomes

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Prognosis

  • Usually good provided no concurrent disease of hip or stifle.
  • Noticeable lameness common due to circumduction of the hock (50-75%).

Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Fitzpatrick N, Sajik D & Farrell M (2013) Feline pantarsal arthrodesis using pre-contoured dorsal plates applied according to the principles of percutaneous plate arthrodesis. Vet Comp Ortho Traumatol 26 (5), 399-407 PubMed.
  • Théoret M C & Moens N M (2007) The use of veterinary cuttable plates for carpal and tarsal arthrodesis in small dogs and cats. Can Vet J 48 (2), 165-8 PubMed.
  • Schmökel H G, Hartmeier G E, Kaser-Hotz B et al (1994) Tarsal injuries in the cat: a retrospective study of 21 cases. JSAP 35 (3), 156-162 VetMedResource.

Other sources of information

  • Voss K, Montavon P M, Langley-Hobbs S J (2009) The Tarsus. In: Feline Orthopedics and Musculoskeletal Disease. Montavon P M, Voss K, Langley-Hobbs S J (eds). Saunders Elsevier. pp 507-527.

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