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Computer‐assisted surgery for placing toggle constructs across the coxofemoral joints of small equids using a minimally invasive approach–A proof‐of‐concept cadaveric study


Claeys, Ines; Van der Vekens, Elke; Kümmerle, Jan; de Preux, Mathieu; Koch, Christoph (2023). Computer‐assisted surgery for placing toggle constructs across the coxofemoral joints of small equids using a minimally invasive approach–A proof‐of‐concept cadaveric study. Veterinary Surgery, 52(7):994-1008.

Abstract

Objective:To develop a minimally invasive technique for placing a toggle construct across the coxofemoral joint of small equids using computer‐assisted surgery.Study designExperimental cadaveric study.Sample populationThree pilot specimens: One donkey, one Shetland pony and one Warmblood foal. Six main study specimens: Three Shetland ponies, one American Miniature Horse, one Warmblood foal and one donkey.MethodsExperimental surgeries were performed on both coxofemoral joints of each cadaver. Using a minimally invasive surgical approach, 5.5 mm bone canals were drilled through the femur and acetabulum, traversing the coxofemoral joint. Intraoperative guidance was provided by a cone‐beam computed tomography (CBCT)‐coupled surgical navigation system. A toggle construct was introduced through the bone canals. Surgical accuracy aberrations (SAA) were measured at the femoral entry and exit points and at the acetabular entry point on merged pre‐ and postoperative CBCT scans. The coxofemoral joint was assessed for articular cartilage damage by gross dissection.ResultsA toggle construct was placed across all 18 coxofemoral joints. The overall median SAA in the main study was 2.8 mm (range: 0.4–8.0 mm). No cartilage damage was found in the cadaveric specimens of the main study.ConclusionThe described technique allowed for the placement of a toggle construct across the coxofemoral joint of small equid cadaveric specimens without prior coxofemoral luxation.Clinical relevanceThis technique may serve as an option for surgical stabilization of coxofemoral joints in small equids. Further biomechanical investigations are required to assess optimal implant positioning and toggle constructs.

Abstract

Objective:To develop a minimally invasive technique for placing a toggle construct across the coxofemoral joint of small equids using computer‐assisted surgery.Study designExperimental cadaveric study.Sample populationThree pilot specimens: One donkey, one Shetland pony and one Warmblood foal. Six main study specimens: Three Shetland ponies, one American Miniature Horse, one Warmblood foal and one donkey.MethodsExperimental surgeries were performed on both coxofemoral joints of each cadaver. Using a minimally invasive surgical approach, 5.5 mm bone canals were drilled through the femur and acetabulum, traversing the coxofemoral joint. Intraoperative guidance was provided by a cone‐beam computed tomography (CBCT)‐coupled surgical navigation system. A toggle construct was introduced through the bone canals. Surgical accuracy aberrations (SAA) were measured at the femoral entry and exit points and at the acetabular entry point on merged pre‐ and postoperative CBCT scans. The coxofemoral joint was assessed for articular cartilage damage by gross dissection.ResultsA toggle construct was placed across all 18 coxofemoral joints. The overall median SAA in the main study was 2.8 mm (range: 0.4–8.0 mm). No cartilage damage was found in the cadaveric specimens of the main study.ConclusionThe described technique allowed for the placement of a toggle construct across the coxofemoral joint of small equid cadaveric specimens without prior coxofemoral luxation.Clinical relevanceThis technique may serve as an option for surgical stabilization of coxofemoral joints in small equids. Further biomechanical investigations are required to assess optimal implant positioning and toggle constructs.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:05 Vetsuisse Faculty > Veterinary Clinic > Equine Department
Dewey Decimal Classification:570 Life sciences; biology
630 Agriculture
Scopus Subject Areas:Health Sciences > General Veterinary
Uncontrolled Keywords:General Veterinary
Language:English
Date:1 October 2023
Deposited On:31 Jan 2024 12:37
Last Modified:30 Jun 2024 01:38
Publisher:Wiley-Blackwell Publishing, Inc.
ISSN:0161-3499
OA Status:Hybrid
Publisher DOI:https://doi.org/10.1111/vsu.14004
PubMed ID:37496312
  • Content: Published Version
  • Language: English
  • Licence: Creative Commons: Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)