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Medial patellar ligament: desmotomy
Introduction
- Release of the medial patellar ligament allows the patella to freely slip over the medial trochlear ridge.
Uses
- Upward fixation of the patella Patella: upward fixation that has not responded to other treatments.
Advantages
- Very simple procedure.
- Can be done in the standing horse.
- Permanent release despite scar formation between the ends of the cut ligament.
Disadvantages
- Fails to address the initiating problem.
- Long-term osteoarthritis Musculoskeletal: osteoarthritis (joint disease) may result due to maltracking of the patella and/or altered gait.
- May predispose to patella fragmentation Patella: fragmentation .
Alternative techniques
- Physiotherapy Musculoskeletal: physiotherapy .
- Internal blister.
Time required
Preparation
- 10 min.
Procedure
- 20 min.
Decision taking
Criteria for choosing test
- Chronic fixation.
Requirements
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Preparation
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Technique
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Aftercare
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Outcomes
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Further Reading
Publications
Refereed papers
- Recent references from PubMed and VetMedResource.
- McIlwraith C W (1990) Osteochondral fragmentation of the distal aspect of the patella in horses. Equine Vet J 22, 157-163 PubMed.
- Gibson K T, McIlwraith C W, Park R D & Norrdin R W (1989) Production of patellar lesions by medial patellar desmotomy in normal horses. Vet Surg 18, 466-471 PubMed.
Other sources of information
- Stashak T S (1987) Upward Fixation of the Patella. In: Adams' Lameness in Horses. Ed: Satshak T S. Lea & Febiger, USA. pp 737-741.