In vitro experimental study of the effect of radial shortening and ulnar ostectomy on contact patterns in the elbow joint of dogs

Preston, Chris A.; Schulz, Kurt S.; Taylor, Ken T.; Kass, Philip H.; Hagan, Catherine E.; Stover, Susan M.

doi:10.2460/ajvr.2001.62.1548

Cited by 65 publications

(113 citation statements)

References 26 publications

(25 reference statements)

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“…In an in vitro elbow incongruity model, it was shown that a distal ulnar osteotomy failed to restore articular congruity because of the strong interosseous ligament, whereas a more proximal osteotomy was more effective. 56 A caudoproximal to craniodistal oblique osteotomy has been recommended 2 to prevent extreme tilting of the proximal ulnar segment by the pull of the triceps brachii muscle at the olecranon, to minimize likelihood of delayed union of the osteotomy, and to reduce excessively abundant callus formation attributable to the inevitable instability at transverse osteotomy sites. Such instability can in some cases lead to nonunion in our experience.…”

Section: Ocd and MCDmentioning

confidence: 99%

Working Algorithm for Treatment Decision Making for Developmental Disease of the Medial Compartment of the Elbow in Dogs

Fitzpatrick¹,

Yeadon²

2009

Veterinary Surgery

146

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Section: Ocd and MCDmentioning

confidence: 99%

Working Algorithm for Treatment Decision Making for Developmental Disease of the Medial Compartment of the Elbow in Dogs

Fitzpatrick¹,

Yeadon²

2009

Veterinary Surgery

146

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“…It has also been suggested that mechanical overloading of the ulnar surface due to joint incongruity with a shortened radius (Preston et al, 2001) or underdevelopment of the ulnar trochlear notch Packard, 1986a, 1986b) could cause or contribute to the disease. Although there is evidence that the aetiopathogenesis of MCD is multifactorial, a causative relationship between MCD and any one of these factors has not yet been established.…”

Section: Introductionmentioning

confidence: 97%

Delayed endochondral ossification in early medial coronoid disease (MCD): A morphological and immunohistochemical evaluation in growing Labrador retrievers

Lau

Hazewinkel

Grinwis

et al. 2013

The Veterinary Journal

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Medial coronoid disease (MCD) is a common joint disease of dogs. It has a multifactorial aetiology, but the relationship between known causal factors and the disease has yet to be elucidated. As most of the published literature is clinical and it reports changes associated with advanced disease, it is not known whether the changes reflect the cause or consequences of the condition. The aim of this study was to investigate early micromorphological changes occurring in articular cartilage and to describe the postnatal development of the medial coronoid process (MCP) before MCD develops. Three litters of MCD-prone young Labrador retrievers were purpose-bred from a dam and two sires with MCD. Comparisons of the micromorphological appearance of the MCP in MCD-negative and MCD-positive joints demonstrated that MCD was initially associated with a disturbance of endochondral ossification, namely a delay in the calcification of the calcifying zone, without concurrent abnormalities in the superficial layers of the joint cartilage. Cartilage canals containing patent blood vessels were only detected in dogs <12 weeks old, but the role of these channels in impaired ossification requires further investigation. Retained hyaline cartilage might ossify as the disease progresses, but weak areas can develop into cracks between the retained cartilage and the subchondral bone, leading to cleft formation and fragmentation of the MCP.

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“…In the case of proximal ulnar osteotomy for incongruity it has been noted that the proximal ulnar articular surface is elevated above the radial articular surface and that varus deformity may result from loading. 14 This could lead to increased medial compartment pressure, cartilage degradation, and subchondral bone pathology. Regardless of the technique used, degenerative changes are progressive for all forms of elbow dysplasia.…”

mentioning

confidence: 99%

Techniques of Application and Initial Clinical Experience with Sliding Humeral Osteotomy for Treatment of Medial Compartment Disease of the Canine Elbow

Fitzpatrick¹,

Yeadon²,

Smith³

et al. 2009

Veterinary Surgery

109

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Objective-To determine medium-term clinical efficacy of sliding humeral osteotomy (SHO) for treatment of lameness and elbow pain associated with clinically diagnosed elbow disease featuring cartilage eburnation of the medial elbow compartment (medial compartment disease-MCD). Study Design-Case series. Animals-Dogs (n ¼ 49) with severe or persistent lameness attributable to MCD. Methods-Signalment, lameness history, and preoperative imaging findings were recorded. A custom, locking, stepped SHO plate was applied to the medial aspect of the humerus, stabilizing a middiaphyseal transverse osteotomy, medially translating the distal segment relative to the proximal segment. Three variants of technique of application were used and outcomes compared between respective patient groups. Outcome measures included lameness scoring, anatomic measures, VAS scoring of elbow pain, and owner assessment of function. Measures recorded preoperatively, 12, and 26 weeks postoperatively were compared. Results-Of 59 limbs that had SHO, 39 had preoperative focal treatment of the diseased medial aspect of the coronoid process. Mean AE SD dog age was 45.5 AE 37.48 months and body weight ranged from 13.6 to 46.7 kg. Mean preoperative duration of lameness was 14.7 AE 18.50 months. Lameness improved for all limbs by 26 weeks, and resolved in 21/32 limbs. Significant improvements in postoperative elbow pain scores and most owner assessments of function were observed. Incidence of major complications requiring surgical intervention was 17.2%, 22.2%, and 4.8% for each of the 3 technique variants described. Histologic examination of 2 elbows at 412 months revealed fibrocartilage cover of medial aspect of humeral condyle. Conclusions-Canine SHO with or without focal treatment of the diseased medial aspect of the coronoid process ameliorates lameness and pain associated with MCD at medium-term follow-up. Application technique is critical to minimizing morbidity. Clinical Relevance-SHO is appropriate for clinical management of pain and lameness in select cases of canine MCD. r

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In vitro experimental study of the effect of radial shortening and ulnar ostectomy on contact patterns in the elbow joint of dogs

Abstract: Proximal radial shortening, which creates articular step incongruity, changes the location and size of the radioulnar contact areas. Dynamically stabilized ulnar ostectomies proximal to the radioulnar ligament restore contact patterns in vitro.

Cited by 65 publications

References 26 publications

Working Algorithm for Treatment Decision Making for Developmental Disease of the Medial Compartment of the Elbow in Dogs

Working Algorithm for Treatment Decision Making for Developmental Disease of the Medial Compartment of the Elbow in Dogs

Delayed endochondral ossification in early medial coronoid disease (MCD): A morphological and immunohistochemical evaluation in growing Labrador retrievers

Techniques of Application and Initial Clinical Experience with Sliding Humeral Osteotomy for Treatment of Medial Compartment Disease of the Canine Elbow

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