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Veterinary surgery : VS2024; 53(4); 671-683; doi: 10.1111/vsu.14075

Dorsal-to-palmar branch neuroanastomosis in horses undergoing palmar digital neurectomy does not reduce neuroma formation or improve outcome.

Abstract: Chronic foot pain, a common cause of forelimb lameness, can be treated by palmar digital neurectomy (PDN). Complications include neuroma formation and lameness recurrence. In humans, neuroanastomoses are performed to prevent neuroma formation. The aim of the study was to evaluate the outcome of horses undergoing dorsal-to-palmar branch neuroanastomosis following PDN. Methods: Retrospective case series. Methods: Eighty-five horses with PDN and dorsal-to-palmar branch neuroanastomosis. Methods: Medical records for horses undergoing this procedure at two hospitals between 2015 and 2020 were reviewed. Palmar and dorsal nerve branches of the PDN were transected and end-to-end neuroanastomosis was performed by apposition of the perineurium. Follow-up was obtained from medical records and telephone interviews. Success was defined as resolution of lameness for at least one year. Results: Lameness resolved following surgery in 81/85 (95%) horses with 57/84 (68%) sound at one year. Postoperative complications occurred in 19/85 (22%) cases. The main limitations of the study were an incomplete data set, inaccurate owner recall, and variations in procedure. Conclusions: Compared to previous studies, this technique resulted in similar numbers of horses sound immediately after surgery, a comparable rate of postoperative neuroma formation but a higher recurrence of lameness rate at 1 year postoperatively. Conclusions: End-to-end neuroanastomosis of the dorsal and palmar branches of the PDN does not reduce the rate of neuroma formation in horses. Long-term outcome was less favorable compared to previously reported PDN techniques.
Publication Date: 2024-02-15 PubMed ID: 38361406DOI: 10.1111/vsu.14075Google Scholar: Lookup
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  • Journal Article

Summary

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The research article explores the use of dorsal-to-palmar branch neuroanastomosis during palmar digital neurectomy (PDN) in horses. However, it concluded that this technique did not reduce neuroma formation or significantly improve post-operative outcomes.

Objective and Methodology

  • The study aimed to evaluate the effects of a dorsal-to-palmar branch neuroanastomosis in horses undergoing palmar digital neurectomy (PDN), a procedure meant to alleviate chronic foot pain and lameness.
  • The researchers examined the medical records of 85 horses who had undergone PDN with dorsal-to-palmar branch neuroanastomosis at two different hospitals between 2015 and 2020.
  • The nerves involved in the PDN were transected and end-to-end neuroanastomosis was performed via perineurium apposition to potentially prevent neuroma formation, a common postoperative complication.
  • The success of the procedure was measured based on the resolution of lameness for at least one year postoperatively.

Results

  • Post-surgery, lameness was no longer present in 95% of the horses. However, only 68% of these horses remained sound after one year.
  • Post-operative complications occurred in 22% of the surveyed cases.
  • The study faced limitations such as incomplete data set, inaccuracies due to owner recalls, and procedural variations.

Conclusions

  • The research found no significant reduction in the rate of neuroma formation with the use of end-to-end neuroanastomosis of the dorsal and palmar branches of the PDN.
  • The long-term outcomes of the technique were less favorable compared to those reported with traditional PDN techniques. Furthermore, it resulted in a higher recurrence of lameness one year postoperatively.
  • Thus, despite the initial successful resolution of lameness in the majority of horses, the procedure failed to deliver improved results in the long term, making its effectiveness questionable as a solution for chronic foot pain and lameness in horses.

Cite This Article

APA
Whisenant KD, Foucaud M, Mariën T, Levine D, Richardson DW, Stefanovski D, Scherrer NM, Engiles JB, Ortved K. (2024). Dorsal-to-palmar branch neuroanastomosis in horses undergoing palmar digital neurectomy does not reduce neuroma formation or improve outcome. Vet Surg, 53(4), 671-683. https://doi.org/10.1111/vsu.14075

Publication

ISSN: 1532-950X
NlmUniqueID: 8113214
Country: United States
Language: English
Volume: 53
Issue: 4
Pages: 671-683

Researcher Affiliations

Whisenant, Katrijn D
  • Department of Clinical Studies, University of Pennsylvania, New Bolton Center, Kennett Square, Pennsylvania, USA.
Foucaud, Mathieu
  • EquiTom Equine Clinic, Lummen, Belgium.
Mariën, Tom
  • EquiTom Equine Clinic, Lummen, Belgium.
Levine, David
  • Department of Clinical Studies, University of Pennsylvania, New Bolton Center, Kennett Square, Pennsylvania, USA.
Richardson, Dean W
  • Department of Clinical Studies, University of Pennsylvania, New Bolton Center, Kennett Square, Pennsylvania, USA.
Stefanovski, Darko
  • Department of Clinical Studies, University of Pennsylvania, New Bolton Center, Kennett Square, Pennsylvania, USA.
Scherrer, Nicole M
  • Department of Clinical Studies, University of Pennsylvania, New Bolton Center, Kennett Square, Pennsylvania, USA.
Engiles, Julie B
  • Department of Clinical Studies, University of Pennsylvania, New Bolton Center, Kennett Square, Pennsylvania, USA.
Ortved, Kyla
  • Department of Clinical Studies, University of Pennsylvania, New Bolton Center, Kennett Square, Pennsylvania, USA.

MeSH Terms

  • Animals
  • Horses
  • Horse Diseases / surgery
  • Retrospective Studies
  • Neuroma / veterinary
  • Neuroma / surgery
  • Lameness, Animal / surgery
  • Male
  • Female
  • Forelimb / surgery
  • Forelimb / innervation
  • Anastomosis, Surgical / veterinary
  • Anastomosis, Surgical / methods
  • Treatment Outcome
  • Foot Diseases / veterinary
  • Foot Diseases / surgery
  • Neurosurgical Procedures / veterinary
  • Neurosurgical Procedures / methods
  • Neurosurgical Procedures / adverse effects

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