Arthroscopic placement of a toggle rod to correct coxofemoral luxation in a dog

Rocheleau, P. J.

doi:10.1111/vsu.12937

Cited by 6 publications

(16 citation statements)

References 22 publications

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“…1,12 However, previous studies in which coxofemoral luxation has been examined have included cases with mild to moderate hip dysplasia. 2,5,6,8,9 Researchers in a previous retrospective study in which a toggle rod was used found that, of 10 hips with mild hip dysplasia, only one hip reluxated. 5 Other researchers have observed that dogs with hip dysplasia did not experience reluxation.…”

Section: Discussionmentioning

confidence: 99%

“…Hip pathology has historically been stated as a contraindication for performing a toggle rod stabilization 1,12 . However, previous studies in which coxofemoral luxation has been examined have included cases with mild to moderate hip dysplasia 2,5,6,8,9 . Researchers in a previous retrospective study in which a toggle rod was used found that, of 10 hips with mild hip dysplasia, only one hip reluxated 5 .…”

Section: Discussionmentioning

confidence: 99%

“…1,4,7 Features that can impact success of closed reduction include avulsion fractures of the ligament of the head of the femur, moderate to severe hip dysplasia, and polytrauma. 1,7 Surgical methods of coxofemoral luxation repair include capsulorrhaphy, extracapsular suture stabilization, trochanteric transposition, sacrotuberous ligament transposition, transarticular pinning, ischioilial pinning, deep gluteal muscle tenodesis, triple pelvic osteotomy, external skeletal fixation, and toggle rod stabilization 2,4,[8][9][10][11][12][13][14] The toggle rod construct has been used successfully in a variety of species including dogs, cats, a miniature horse, and an alpaca. 6,8,15,16 Researchers have evaluated toggle rod constructs in multiple biomechanical studies using hand-made toggles of a Steinmann pin or Kirschner-wire, commercial toggle rods, and different sutures including nylon monofilament and braided multifilaments.…”

Section: Introductionmentioning

confidence: 99%

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Risk factors for reluxation after toggle rod stabilization for treatment of coxofemoral luxation in 128 dogs

Mathews¹,

Barnhart²

2020

Veterinary Surgery

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Objective: Evaluate the risk factors for reluxation and outcomes for dogs with a toggle rod construct. Study design: Retrospective case series. Animals: One hundred twenty-eight client-owned dogs. Methods: Medical records from 2007 to 2018 were reviewed for signalment, history, surgery, and outcome for dogs with a coxofemoral luxation repaired with a commercial toggle rod and nylon monofilament suture construct. Univariate and multiple logistics regression analysis were performed to assess risk factors associated with postoperative luxation. Primary veterinarians and owners were contacted for follow-up via telephone or electronic communication. Results: The overall complication rate was 24.2%, and the reluxation rate was 14.8%. There was a decreased risk of reluxation when the cause was traumatic in origin (odds ratio [OR] 0.10) or when the lameness was severe at presentation (OR 0.42). Fifteen of 58 (25.9%) owners contacted completed a follow-up survey. Conclusion: Dogs with nontraumatic, low impact luxations were at a higher risk for reluxation. Clinical significance: Dogs of any body condition with a traumatic coxofemoral luxation are at lowest risk for reluxation.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Risk factors for reluxation after toggle rod stabilization for treatment of coxofemoral luxation in 128 dogs

Mathews¹,

Barnhart²

2020

Veterinary Surgery

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“…Rocheleau also described the use of a custom C-guide for arthroscopic application. 15 The standard C-guide described by Kieves and colleagues does not have a shallow enough reach to allow for placement in the fovea capitis without near complete luxation of the hip, making it more difficult to use in an arthroscopically guided setting. 4 In four of eight cases, the femoral bone tunnel was found to enter the intertrochanteric fossa; however, the aperture of the drill tunnel exit was completely located in the fovea capitis in three out of the four cases that had intertrochanteric fossa penetration.…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Arthroscopic-Assisted Toggle Rod Stabilization in Canine Coxofemoral Luxation: A Cadaveric Study

Rivenburg

Murphy²,

Jones³

et al. 2022

Vet Comp Orthop Traumatol

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Objective The aim of this study was to describe an arthroscopic-assisted technique for coxofemoral toggle rod placement, and to report on the feasibility, drill tunnel trajectory and accuracy of tunnel aperture location using this method. Study Design Cadaveric pilot study. Sample Population Eight coxofemoral joints. Methods Craniodorsal coxofemoral joint luxations were artificially created. A simulated open hip reduction and stabilization with a toggle rod were performed through a limited arthrotomy under arthroscopic guidance. Computed tomography scans were performed to evaluate drill hole trajectory across the femoral neck, and joints were disarticulated and photographed. Digital imaging software was used to determine the percent overlap of the drill hole apertures relative to the origin and insertion of the round ligament on the acetabulum and fovea. Results The exit point of the tunnel was entirely within the fovea capitis in five of eight femurs, three of eight femoral drill apertures were only partially within the target area. Of the eight acetabular bone tunnels examined, all were centred occupying the acetabular fossa. Conclusions Coxofemoral toggle rod placement can be performed under arthroscopic guidance through a limited arthrotomy. Comparable femoral tunnel accuracy with the standard open technique should be achieved with the current method prior to its clinical use.

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Ex vivo evaluation of arthroscopically assisted shoulder stabilization in dogs using an intra‐articular aiming device

Rocheleau

Holz²,

Peura³

2023

Veterinary Surgery

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Objective: To evaluate the use of an intra-articular aiming device (IAD) for medial shoulder stabilization with a suture-toggle repair or an interference screw repair using bone anchors in dogs. Study design: Ex-vivo StudyMethods: Specimens were randomly divided into 2 groups (anchor and suture-toggle) with 10 shoulders each. Abduction angles were measured by goniometry prior to and following medial glenerohumeral ligament transection and after receiving arthroscopically assisted stabilization with either bone anchors or suture-toggle constructs. Bone stock and insertion angles were measured with computed tomography scans. All specimens were inspected by dissection.Results: Abduction angles increased post-transection in both groups, and were restored to normal in the anchor group, but 2 smaller than normal in the suture-toggle group following stabilization. Median magnitude of bone stock surrounding all tunnels ranged between 5.9 and 12.9 mm in the anchor group and 8.8 and 15.6 mm in the suture-toggle group (p = .002). Median insertion angles at the cranial glenoid, caudal glenoid, and humerus were 17.3 , 36.8 and 43.4 in the anchor group, respectively, and median insertion angles at the glenoid and humerus were 38.2 and 35.6 in the suture-toggle group, respectively (p = .91). Placement of anchors were not feasible in 3 specimens in the anchor group, and mild violations of the articular surfaces were detected in 3 specimens overall. Conclusion: Arthroscopically assisted shoulder stabilization with an IAD was feasible in canine cadavers.Clinical Significance: An IAD may facilitate arthroscopic shoulder stabilization in dogs. Further studies are warranted to evaluate safety and efficacy in a clinical setting. | INTRODUCTIONThe canine shoulder joint is highly mobile with an extensive range of motion. Its design reflects this. A relatively small glenoid is paired with the much larger humeral head to accommodate this range of motion and as a result has an inherent predisposition to instability. 1,2 A complex interaction between both passive and active stabilizers is required to maintain stability. The active stabilizers, such as subscapularis, supraspinatus,

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Arthroscopic placement of a toggle rod to correct coxofemoral luxation in a dog

Abstract: Minimally invasive, arthroscopic guided toggle rod stabilization may be an alternative to the currently accepted open approach when addressing coxofemoral luxations.

Cited by 6 publications

References 22 publications

Risk factors for reluxation after toggle rod stabilization for treatment of coxofemoral luxation in 128 dogs

Risk factors for reluxation after toggle rod stabilization for treatment of coxofemoral luxation in 128 dogs

Arthroscopic-Assisted Toggle Rod Stabilization in Canine Coxofemoral Luxation: A Cadaveric Study

Ex vivo evaluation of arthroscopically assisted shoulder stabilization in dogs using an intra‐articular aiming device

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