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Home / Equine Research Bank / Vet Surg / Modified toggle pin technique combined with prosthetic capsu...
Veterinary surgery : VS2022; 52(2); 221-228; doi: 10.1111/vsu.13915

Modified toggle pin technique combined with prosthetic capsular reconstruction for surgical stabilization of coxofemoral luxation in a Shetland pony.

Abstract: To describe open reduction and surgical stabilization of a coxofemoral luxation in a pony using a modified toggle pin technique and prosthetic joint capsule reconstruction without osteotomy of the greater trochanter. Methods: A 2-year-old Shetland pony with a bodyweight of 167 kg. Methods: Case report. Methods: Radiographic examination confirmed craniodorsal luxation of the left coxofemoral joint. An open reduction with the aid of a pulley system was performed. A toggle pin was inserted through a bone tunnel extending from the level of the femoral shaft through the femoral head and the center of the acetabulum for the pin to be positioned on the medial wall of the acetabulum. FiberWire was subsequently passed through the cranial and caudal aspects of the acetabulum as well as a transverse tunnel in the femoral neck in a figure of 8 to facilitate capsular reconstruction. The pony was placed in a sling for 8 weeks and gradually returned to normal activity over 2 months. Results: Postoperative radiographic examination confirmed the position of the femoral head in the acetabulum with the implants in place. On 2-year follow-up the pony was sound at walk and trot. Conclusions: A combined intra- and extra-articular stabilization technique for coxofemoral luxation in a pony resulted in successful long-term reduction and excellent outcome.
© 2022 The Authors. Veterinary Surgery published by Wiley Periodicals LLC on behalf of American College of Veterinary Surgeons.
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Publication Date: 2022-11-21 PubMed ID: 36408865DOI: 10.1111/vsu.13915Google Scholar: Lookup
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Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

The researchers conducted a successful stabilization surgery for a dislocated hip in a pony using a new surgical technique involving pins and prosthetic joint reconstruction without the use of bone cutting.

Introduction and Case Background

  • This research focuses on an innovative surgical technique employed to treat the hip dislocation of a Shetland pony. It features the application of a modified toggle pin technique and prosthetic joint capsule reconstruction sans osteotomy of the greater trochanter.
  • The Shetland pony under context was 2 years old and weighed 167 kgs.
  • An X-ray examination confirmed that the left hip joint of the pony had dislocated cranially and dorsally.

Procedure Applied

  • The researchers performed an open reduction with the help of a pulley system.
  • A toggle pin was then inserted through a bone tunnel that extended from the femoral shaft level, through the head of the femur and the center of the acetabulum. The pin was positioned on the medial wall of the acetabulum.
  • After positioning the toggle pin, FiberWire was passed through the front and rear parts of the acetabulum as well as a lateral tunnel in the femoral neck. This was done in a figure-eight pattern to facilitate capsular reconstruction.
  • The pony was subsequently placed in a sling for eight weeks and gradually resumed normal activity over two months.

Results of the Procedure and Conclusions

  • A postoperative radiographic exam confirmed the position of the femoral head in the acetabulum with the implants correctly in place.
  • In a two-year follow-up, the pony was sound while walking and trotting, implying that the procedure was successful.
  • The researchers concluded that this integrated intra- and extra-articular stabilization technique for treating hip dislocations in ponies resulted in successful long-term reduction and an excellent outcome.

Implications of the Study

  • This study is significant as it represents a successful example of a novel technique to manage coxofemoral luxation in a pony.
  • The results demonstrate that a modified toggle pin technique, along with prosthetic capsular reconstruction, can be effective without the need for greater trochanter osteotomy.

Cite This Article

APA
Müller EMT, Ehrle A, Pozzi A, Lasarzik de Ascurra J, Lischer CJ, Kümmerle JM. (2022). Modified toggle pin technique combined with prosthetic capsular reconstruction for surgical stabilization of coxofemoral luxation in a Shetland pony. Vet Surg, 52(2), 221-228. https://doi.org/10.1111/vsu.13915

Publication

Veterinary surgery : VS
ISSN: 1532-950X
NlmUniqueID: 8113214
Country: United States
Language: English
Volume: 52
Issue: 2
Pages: 221-228

Researcher Affiliations

Müller, Eva M T
  • Equine Clinic, Surgery and Radiology, Freie Universität Berlin, Berlin, Germany.
Ehrle, Anna
  • Equine Clinic, Surgery and Radiology, Freie Universität Berlin, Berlin, Germany.
Pozzi, Antonio
  • Small Animal Surgery Department, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland.
Lasarzik de Ascurra, Juliane
  • Equine Clinic, Surgery and Radiology, Freie Universität Berlin, Berlin, Germany.
Lischer, Christoph J
  • Equine Clinic, Surgery and Radiology, Freie Universität Berlin, Berlin, Germany.
Kümmerle, Jan M
  • Equine Department, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland.

MeSH Terms

  • Animals
  • Horses
  • Hip Dislocation / diagnostic imaging
  • Hip Dislocation / surgery
  • Hip Dislocation / veterinary
  • Hip Joint / surgery
  • Femur / surgery
  • Acetabulum
  • Femur Head
  • Horse Diseases

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This article includes 25 references
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Citations

This article has been cited 1 times.
  1. Carnevale L, Tagliabue T, Rabbogliatti V, Bona R, Cavallier F. Return to Athletic Activity of a Shetland Pony Mare with Coxofemoral Luxation Treated by Femoral Head Ostectomy. Animals (Basel) 2025 Feb 10;15(4).
    doi: 10.3390/ani15040497pubmed: 40002979google scholar: lookup
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