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Peat FJ, Kawcak CE, McIlwraith CW, Berk JT, Keenan DP. Concurrent radiological and ultrasonographical findings in the forelimb proximal sesamoid bones and adjacent suspensory ligament branches in yearling and 2-year-old Thoroughbred sales horses. Equine Vet J 2024. [PMID: 39039612 DOI: 10.1111/evj.14120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 06/02/2024] [Indexed: 07/24/2024]
Abstract
BACKGROUND Changes in the proximal sesamoid bones (sesamoids) and the insertional region of the adjacent suspensory ligament branch (branch) are of particular importance in young Thoroughbreds sold at public auction. Little is known about the prevalence of concurrent ultrasonographical branch change, relative to the various grades of radiological sesamoid appearance. OBJECTIVE To examine the existence of concurrent radiological and ultrasonographical findings in individual sesamoid-branch units in sales horses; to determine whether there are any radiological findings that are consistently accompanied by a particular degree of insertional branch change, and to provide practical recommendations as to when suspensory branch ultrasonography may be warranted in a sales environment. STUDY DESIGN Prospective cohort study using an enrolled sample. METHODS Horses were enrolled with consignor permission from a large Thoroughbred yearling sale and five 2-year-old Thoroughbred sales the following year. Data from the radiological evaluation of forelimb sesamoids and the ultrasonographical examination of the adjacent forelimb suspensory branches were described. RESULTS A total of 2204 yearling forelimb sesamoid-branch units and 1336 2-year-old forelimb sesamoid-branch units were included, from 551 sales yearlings and 334 sales 2-year-olds. The proportion of yearling sesamoids with grade ≤1 vascular channels that had adjacent grade ≥2 fibrillar branch change was 1.2%. The same proportion for 2-year-olds was 3.8%, with medial forelimb sesamoids with grade 1 vascular channels overrepresented in 2-year-olds in this category. In yearlings, 31% of sesamoids with grade 2 vascular channels had adjacent grade ≥2 fibrillar branch change and 59% of sesamoids with grade 3 vascular channels had adjacent grade ≥2 fibrillar branch change. In 2-year-olds, 47% of sesamoids with grade 2 vascular channels had adjacent grade ≥2 fibrillar branch change and 67% of sesamoids with grade 3 vascular channels had the same. Only one yearling sesamoid and one 2-year-old sesamoid with radiological abaxial concavity had grade ≥2 fibrillar branch change. MAIN LIMITATIONS Hindlimbs were not included. Clinical examinations were not performed and the status of any past or present inflammatory process at the sesamoid-branch enthesis could not be inferred from radiographs and ultrasonographic images alone. CONCLUSIONS The existence and prevalence of concurrent radiological and ultrasonographical findings in the proximal sesamoid bones and adjacent suspensory ligament branches in yearling and 2-year-old Thoroughbred sales horses has been established. General recommendations have been made for selective branch ultrasonography on the basis of radiological sesamoid appearance. The results support a separate aetiology for radiological sesamoid abaxial concavity that does not primarily involve the suspensory branch insertion.
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Affiliation(s)
- Frances J Peat
- Orthopaedic Research Center, C. Wayne McIlwraith Translational Medicine Institute, Colorado State University, Fort Collins, Colorado, USA
| | - Christopher E Kawcak
- Orthopaedic Research Center, C. Wayne McIlwraith Translational Medicine Institute, Colorado State University, Fort Collins, Colorado, USA
| | - C Wayne McIlwraith
- Orthopaedic Research Center, C. Wayne McIlwraith Translational Medicine Institute, Colorado State University, Fort Collins, Colorado, USA
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Peat FJ, Kawcak CE, McIlwraith CW, Berk JT, Keenan DP, Selberg KT, Ojeda A. Ultrasonography of the suspensory ligament branches in yearling and 2-year-old Thoroughbred sales horses: Prevalence, progression of findings and associations with racing performance. Equine Vet J 2024. [PMID: 39007207 DOI: 10.1111/evj.14137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 06/21/2024] [Indexed: 07/16/2024]
Abstract
BACKGROUND Equine suspensory ligament branch (branch) ultrasonography is becoming increasingly commonplace presale. No ultrasonographical branch reference data exists for Thoroughbred sales horses. OBJECTIVES To define the prevalence of ultrasonographical findings in the forelimb suspensory branches of yearling and 2-year-old sales Thoroughbreds and to analyse associations with racing performance. To track changes in branch findings between 1 and 2 years of age in horses that present for sale at both ages. STUDY DESIGN Prospective cohort study using an enrolled sample. METHODS Horses were enrolled from a 2016 yearling sale and five 2017 2-year-old sales with consignor permission. Ultrasonography was performed immediately prior to the sales. Ultrasonographical findings relating to branch size, fibrillar pattern, the presence of hyperechoic foci, periligamentar tissue thickness and the adjacent proximal sesamoid bone surface were examined. Associations with racing performance from 2 to 4 years of age were investigated using multivariate regression analyses. Clinical follow-up was sought to ascertain why horses that did not race never started. RESULTS A total of 593 sales yearlings and 367 2-year-olds had forelimb branch ultrasonography performed. Grade ≥2 fibrillar branch change was present in 8.9% of yearlings and 14.4% of 2-year-olds. A 0.25 cm increase in branch width was associated with a 49-day delayed start to racing careers (P < 0.001, 95% confidence interval (95% CI): 21-77 days). The presence of grade 2 hyperechoic foci was associated with significantly lower total earnings (P = 0.01, 95% CI: $2000-$16 022) and lower earnings per start (P = 0.003, 95% CI: $349-$1718) in United States Dollars. Grade 3 fibrillar branch change had clinically important reductions in the probability of racing, the calibre of racing performance and earnings. Grade 1 fibrillar pattern was associated with significantly higher earnings per start (P = 0.004, 95% CI: $2641-$5759). MAIN LIMITATIONS The findings are applicable to horses prepared for public auction and deemed fit to be entered for sale. The results may underestimate the proportion of severe lesions in horses not entered for sale. CONCLUSIONS Reference values specific to young Thoroughbreds have been established. Grade 1 fibrillar branch change should be regarded as an acceptable appearance in sales yearlings and 2-year-olds. Approximately one-third of grade 2 yearling branches progressed to a grade 3 lesion. Evidence of enlarged branch width and grade 2 hyperechoic foci at 2-year-old sales constitute a risk to racing performance.
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Affiliation(s)
- Frances J Peat
- Orthopaedic Research Center, C. Wayne McIlwraith Translational Medicine Institute, Colorado State University, Fort Collins, Colorado, USA
| | - Christopher E Kawcak
- Orthopaedic Research Center, C. Wayne McIlwraith Translational Medicine Institute, Colorado State University, Fort Collins, Colorado, USA
| | - C Wayne McIlwraith
- Orthopaedic Research Center, C. Wayne McIlwraith Translational Medicine Institute, Colorado State University, Fort Collins, Colorado, USA
| | | | | | - Kurt T Selberg
- Department of Environmental & Radiological Health Sciences, Colorado State University, Fort Collins, Colorado, USA
| | - Alejandro Ojeda
- Department of Statistics, Colorado State University, Fort Collins, Colorado, USA
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Hansen SH, Bramlage LR, Moore GE. Racing performance of Thoroughbred racehorses with suspensory ligament branch desmitis treated with mesenchymal stem cells (2010-2019). Equine Vet J 2024; 56:503-513. [PMID: 37534804 DOI: 10.1111/evj.13980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 07/18/2023] [Indexed: 08/04/2023]
Abstract
BACKGROUND Suspensory ligament branch desmitis (SLBD) is a common injury in Thoroughbred racehorses. Orthobiologic treatment of these injuries is a relatively new approach, and there is limited information available on post injury racing performance in racehorses treated with mesenchymal stem cells (MSCs). OBJECTIVES To assess racing performance post injury in Thoroughbred racehorses with SLBD treated with MSCs. STUDY DESIGN Retrospective case series. METHODS Medical records of racehorses with SLBD treated with MSCs from 2010 to 2019 were reviewed. All horses were treated with allogeneic stem cells injected locally at the time of diagnosis and subsequently received 3-4 treatments with autologous bone-marrow derived MSCs. Ultrasonographic and radiographic images were evaluated to determine the degree of suspensory branch injury and sesamoiditis of the associated proximal sesamoid bone. Race performance was assessed by career length, class of races, number of starts and earnings post injury. Race performance of horses that raced pre and post injury were compared. RESULTS Of 69 treated horses, 71% (49/69) [95% CI: 59%-81%] raced post injury. Horses that had raced pre injury were more likely to race post injury (90% [18/20]) than horses that did not race pre injury (63% [31/49]; p = 0.03). Females were less likely to race post injury than males (52% [11/21] vs. 79% [38/49], respectively; p = 0.02). In the 18 horses that raced pre and post injury, the number of races, earnings and earnings per start were not significantly different pre and post injury. The average career length of all horses that raced post injury was 29.5 months. MAIN LIMITATIONS Retrospective study design and lack of controls. CONCLUSIONS Treatment with MSCs resulted in a majority of Thoroughbred racehorses with SLBD racing post treatment. Racing pre injury and being male was positively associated with racing post injury.
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Affiliation(s)
- Stefanie H Hansen
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, USA
| | | | - George E Moore
- Department of Veterinary Administration, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, USA
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Nagy A, Boros K, Dyson S. Magnetic Resonance Imaging, Computed Tomographic and Radiographic Findings in the Metacarpophalangeal Joints of 40 Non-Lame Thoroughbred Yearlings. Animals (Basel) 2023; 13:3466. [PMID: 38003084 PMCID: PMC10668665 DOI: 10.3390/ani13223466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/06/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
Most catastrophic injuries in Thoroughbred racehorses involve the fetlock. There is no description of comparative imaging in Thoroughbreds entering racehorse training. The aim was to describe MRI, CT and radiographic findings in the metacarpophalangeal joint of non-lame Thoroughbred yearlings. Forty Thoroughbreds underwent low-field MRI, fan-beam CT and radiographic examinations of both metacarpophalangeal joints. Images were assessed subjectively. A hypoattenuating lesion of the sagittal ridge of the third metacarpal bone (McIII) was identified in 33/80 limbs in CT reconstructions. Cone-shaped mineralisation in the sagittal ridge was detected in MR images (n = 17) and in CT images (n = 5). Mild hyperattenuation was common in trabecular bone in the dorsomedial (36/80) and palmarolateral (25/80) metacarpal condyles in CT reconstructions. A focal lesion in the subchondral bone was seen in the proximal phalanx (n = 19) and in McIII (n = 11). Enlarged vascular channels were detected in the metacarpal condyles in 57/80 limbs and in the proximal sesamoid bones in all limbs. Signs of bone modelling are seen in yearling Thoroughbred fetlocks. Sagittal ridge lesions were common and are likely associated with osteochondrosis or other developmental osteochondral defects. Focal lesions in the subchondral bone of McIII and proximal phalanx can indicate developmental abnormalities or subtle subchondral bone injuries.
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Affiliation(s)
- Annamaria Nagy
- Equine Department and Clinic, University of Veterinary Medicine Budapest, Doramajor, 2225 Ullo, Hungary;
| | - Koppány Boros
- Equine Department and Clinic, University of Veterinary Medicine Budapest, Doramajor, 2225 Ullo, Hungary;
| | - Sue Dyson
- The Cottage, Church Road, Market Weston, Diss IP22 2NX, UK;
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Plevin S, McLellan J. Comparison of ultrasonography and radiography with arthroscopy for diagnosis of dorsoproximal osteochondral fragmentation of the proximal phalanx in 56 Thoroughbred racehorses. Equine Vet J 2021; 54:649-661. [PMID: 34420230 DOI: 10.1111/evj.13497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 06/08/2021] [Accepted: 07/12/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Osteochondral fragmentation of the proximal phalanx (DPP1 fragment) is a common finding in the racehorse. Whilst radiographic assessment has been reported to lack diagnostic sensitivity, ultrasonographic examination has been documented to be extremely sensitive for identification of bone fragments in the metacarpophalangeal joint. OBJECTIVES To determine the sensitivity and specificity of ultrasonography as an imaging modality for diagnosis of DPP1 fragmentation and to compare it with radiography in the Thoroughbred racehorse. STUDY DESIGN Retrospective cohort study. METHODS Medical records (radiographs and ultrasonographic examinations) of 56 Thoroughbred racehorses in training (average age 26.4 months [SD ±5.9]) with a history of forelimb fetlock joint effusion and arthroscopically confirmed DPP1 fragmentation were evaluated. Inter-observer agreement was calculated between three blinded reviewers for both ultrasonographic and radiographic findings. Median values were used for statistical analyses. Ultrasonographic and radiographic identification of DPP1 fragmentation was considered correct if in agreement with arthroscopic findings. The McNemar test was used to compare correct proportions between radiography and ultrasonography. Analyses were performed to evaluate correct identification of presence of fragment(s), location of fragment(s) and presence and location of fragment(s) within the joints, with values P < .05 considered significant. RESULTS Eighty-one fetlock joints from 56 Thoroughbreds were evaluated. In total, 99 individual DPP1 fragments were confirmed arthroscopically. Ultrasonography was shown to have high levels of sensitivity (94%, 95% CI 89%-99%) and specificity (97%, 95% CI 92%-100%) for identification of DPP1 fragments, with transverse ultrasonographic images being more sensitive than sagittal ultrasonography (P = .001). Ultrasonography was also shown in this population to have significantly greater sensitivity than radiography (47%, 95% CI 37%-56%) (P < .001). CONCLUSIONS Ultrasonography is an extremely sensitive and specific imaging modality for evaluation of DPP1 fragmentation, with transverse ultrasonographic imaging being the most sensitive technique. Radiographic evaluation was less sensitive than ultrasonography in this study.
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Affiliation(s)
- Sarah Plevin
- Florida Equine Veterinary Associates, Ocala, FL, USA
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Hawkins A, O'Leary L, Bolt D, Fiske-Jackson A, Berner D, Smith R. Retrospective analysis of oblique and straight distal sesamoidean ligament desmitis in 52 horses. Equine Vet J 2021; 54:312-322. [PMID: 33567104 DOI: 10.1111/evj.13438] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 02/05/2021] [Accepted: 02/06/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Injuries to the oblique (ODSL) or straight (SDSL) distal sesamoidean ligaments are a recognised cause of distal limb lameness in the horse. However, there are only limited publications addressing common diagnostic features and prognosis. OBJECTIVES (a) Report findings on ultrasonography and standing low-field magnetic resonance imaging (sMRI) in horses with ODSL or SDSL injury; (b) Identify clinical variables associated with lesion type and (c) Identify factors associated with return to soundness in horses with ODSL or SDSL injury. STUDY DESIGN Retrospective case series. METHODS Horses with a primary diagnosis of ODSL or SDSL injury confirmed with a combination of diagnostic analgesia and detection of a lesion on imaging (ultrasonographic ± advanced imaging) were included. Return to soundness and performance follow-up data were obtained. RESULTS Fifty-one horses were included. SDSL injuries were more common in the forelimb (13/21, 62%), while ODSL injuries had equal frequency in fore- (15/30, 50%) and hindlimbs (15/30, 50%). ODSL injuries were more likely than SDSL injuries to affect the proximal third of the ligament (OR =13; 95% CI 2.3-74.3; p = 0.004) and often presented with periligamentar swelling (20/30;67%) and focal pain (22/28;79%). Lesions were frequently detected using ultrasonography (35/42;83%) and sMRI examination (18/25;72%). Only 27/49 cases (55%) returned to soundness, with only 15/49 (31%) returning to intended use. There were no significant associations between outcome and clinical features or treatment. MAIN LIMITATIONS There was no comparative "gold standard" to validate lesions such as high-field MRI or histopathology. CONCLUSIONS In contrast to previous studies, ODSL and SDSL injuries were readily identified ultrasonographically using appropriate views, and with sMRI. Given the limited availability, cost and general anaesthetic risks associated with high-field MRI, more focus should be placed on optimising the ultrasonographic examination. Owners of affected horses should be informed of the guarded prognosis for return to full use.
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Affiliation(s)
- Alex Hawkins
- Department of Clinical Sciences and Services, The Royal Veterinary College, Hatfield, UK
| | - Lauren O'Leary
- Department of Clinical Sciences and Services, The Royal Veterinary College, Hatfield, UK
| | - David Bolt
- Department of Clinical Sciences and Services, The Royal Veterinary College, Hatfield, UK
| | - Andrew Fiske-Jackson
- Department of Clinical Sciences and Services, The Royal Veterinary College, Hatfield, UK
| | - Dagmar Berner
- Department of Clinical Sciences and Services, The Royal Veterinary College, Hatfield, UK
| | - Roger Smith
- Department of Clinical Sciences and Services, The Royal Veterinary College, Hatfield, UK
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Werpy N, Chapman K, Griffith L. Non-weight bearing ultrasonographic examination allows the diagnosis of longitudinal fiber disruption (split) in equine suspensory ligament branches not visible on weight bearing examination. Vet Radiol Ultrasound 2020; 62:84-97. [PMID: 33089588 DOI: 10.1111/vru.12910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 06/22/2020] [Accepted: 06/23/2020] [Indexed: 12/01/2022] Open
Abstract
When evaluating suspensory ligament branch splits, there is a discrepancy between high field MRI findings and weight bearing ultrasonographic imaging characteristics. In this descriptive and retrospective case series, ultrasonographic examination was performed on suspensory ligament branches with the limbs in weight bearing and non-weight bearing positions. Suspensory ligament branch splits were defined as linear regions of decreased echogenicity when imaged with the limb in a weight bearing position that increased in size and became anechoic with the limb in a non-weight bearing position. This appearance was considered an indication of pathologic change in the branch. A total of 62 suspensory ligament branches were included in the study from 37 horses, with 14 partial splits, 11 intrasubstance splits, and 14 complete splits of which two had extension of fetlock synovial fluid and synovial membrane through the split. Recheck ultrasonographic examinations performed in eight horses up to 14 months following the initial examination demonstrated persistence of the split in two horses, partial resolution in five horses, and complete resolution in one horse. Ultrasonographic examination using the non-weight bearing approach proved valuable for increasing the lesion conspicuity as compared to the weight bearing images. Certain abnormalities, such as longitudinal fiber disruption (split) in suspensory ligament branches may only be evident when imaged non-weight bearing. The use of this technique provides a more accurate representation of lesion severity and allows for monitoring over time. A longitudinal study is necessary to determine the clinical relevance of suspensory ligament branch splits.
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Affiliation(s)
- Natasha Werpy
- Equine Diagnostic Imaging Inc., Archer, Florida, USA
| | | | - Leah Griffith
- Equine Diagnostic Imaging Inc., Archer, Florida, USA
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Rabba S, Petrucci V, Petrizzi L, Giommi DW, Busoni V. B-Mode Ultrasonographic Abnormalities and Power Doppler Signal in Suspensory Ligament Branches of Nonlame Working Quarter Horses. J Equine Vet Sci 2020; 94:103254. [PMID: 33077065 DOI: 10.1016/j.jevs.2020.103254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 09/02/2020] [Accepted: 09/03/2020] [Indexed: 11/18/2022]
Abstract
Information concerning B-mode ultrasonographic abnormalities and power Doppler (PD) signal in suspensory ligament branches of nonlame working Quarter Horses are not reported. The aims of this study were to investigate the prevalence of B-mode ultrasonographic abnormalities and PD signal in suspensory ligament branches in a group of nonlame working Quarter Horses and to compare B-mode findings with PD findings of horses in two different training (barrel racing and team roping). Twenty-one Quarter Horses in training, 14 barrel racing (Group B) and seven team roping horses (Group R), were assessed by ultrasound for screening purpose. A total of 168 suspensory ligament branches were examined (B-mode and PD examinations). B-mode lesions were seen more frequently in forelimbs (25 branches) than in hindlimbs (10 branches). Power Doppler signal was not detected in suspensory ligament branches that were normal at B-mode, whereas it was visible in 22 of the 35 branches abnormal at B-mode. Horses of Group R showed more B-mode abnormalities and more PD signal in branches abnormal in B-mode.
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Affiliation(s)
- Silvia Rabba
- Diagnostic Imaging Section, Department of Clinical Sciences of Companion Animals and Equids, Faculty of Veterinary Medicine, University of Liège, Liège, Belgium; Department of Diagnostic Imaging, Istituto Veterinario di Novara, Granozzo con Monticello (NO), Italy.
| | | | - Lucio Petrizzi
- Veterinary Teaching Hospital, University of Teramo, Teramo, Italy
| | | | - Valeria Busoni
- Diagnostic Imaging Section, Department of Clinical Sciences of Companion Animals and Equids, Faculty of Veterinary Medicine, University of Liège, Liège, Belgium
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Read RM, Boys-Smith S, Bathe AP. Subclinical Ultrasonographic Abnormalities of the Suspensory Ligament Branches Are Common in Elite Showjumping Warmblood Horses. Front Vet Sci 2020; 7:117. [PMID: 32258068 PMCID: PMC7092662 DOI: 10.3389/fvets.2020.00117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 02/17/2020] [Indexed: 11/24/2022] Open
Abstract
Background: There is limited information concerning the ultrasonographic appearance of suspensory ligament branches (SLB) in sports horses. Publications exist on clinical injuries that lead to loss of training days and retirement, but not on the appearance of SLBs in high level showjumping Warmbloods. Objectives: To demonstrate the prevalence of subclinical SLB abnormalities in regularly competing high-level showjumpers; to grade each branch 0–3; compare forelimb vs. hindlimb and medial vs. lateral SLBs; subjectively assess periligamentous fibrosis; measure cross sectional area (CSA) and to gather competition follow-up data. Study Design: Prospective cross-sectional study using ultrasonograms. Methods: Sixty elite showjumping Warmbloods without recent history or clinical signs of SLB desmopathy were examined ultrasonographically. Eight static images of each SLB were acquired in transverse and longitudinal sections, anonymised and stored. Images were then assessed and graded by two experienced blinded clinicians based on a published ordinal scale (grade 0–3). A branch score was assigned based on the most severe grade of any image slice in each branch series. SLB cross-sectional area measurement was obtained from each SLB using the transverse image proximal to insertion. Results: The frequency of grade 2 (moderate) ultrasonographic abnormalities was high. Combined data showed a prevalence of 58% (554/960) grade 2 SLBs. Interobserver agreement was good (kappa = 0.65). Periligamentous fibrosis was over represented in hindlimbs (64%). Combined observer data showed there was no statistical difference in branch scores based on limb or laterality. Follow-up over 12 months revealed only two horses were excluded from competition due to SLB injury. Main Limitations: Sample size was small. Images were obtained in static mode, limbs were not clipped of hair, lameness evaluation was under FEI veterinary inspection and not performed by the authors and follow-up evaluation was from FEI competition records and communication only, and was limited to 1 year. Conclusions: Regularly competing elite showjumping Warmbloods have a high prevalence of subclinical SLB ultrasongraphic abnormalities, which may not contribute to causing lameness, poor-performance or be viewed entirely negatively at prepurchase examination. Judicious interpretation of moderate severity SLB abnormalities is advised due the low incidence of clinical injury demonstrated during the 1 year follow-up.
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Gruyaert M, Pollard D, Dyson SJ. An investigation into the occurrence of, and risk factors for, concurrent suspensory ligament injuries in horses with hindlimb proximal suspensory desmopathy. EQUINE VET EDUC 2019. [DOI: 10.1111/eve.13187] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- M. Gruyaert
- Centre for Equine Studies Animal Health Trust Newmarket Suffolk UK
| | - D. Pollard
- Centre for Preventative Medicine Animal Health Trust Newmarket Suffolk UK
| | - S. J. Dyson
- Centre for Equine Studies Animal Health Trust Newmarket Suffolk UK
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Osteoarticular radiographic findings of the distal forelimbs in Tbourida Horses. Heliyon 2019; 5:e02514. [PMID: 31687602 PMCID: PMC6819765 DOI: 10.1016/j.heliyon.2019.e02514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 09/01/2019] [Accepted: 09/19/2019] [Indexed: 11/29/2022] Open
Abstract
Tbourida is a traditional Moroccan equestrian sport in which 15 horses gallop 200 m in a line while riders fire into the sky with muskets. The stop is the finale and representative demands of this equestrian event. Such particular sudden stop after a fast gallop requires a hyperextension of the metacarpophalangeal joint. Indeed, it is well known that Tbourida show predisposes horses to different injuries of the hard and soft tissues of the distal forelimbs. Yet, there is a paucity of research that examined such lesions. The aim of the present study was to investigate for the first time the type and the prevalence of osteoarticular findings in the distal forelimbs of Tbourida horses using radiographic images. The study was conducted on 127 Tbourida horses aged between 2.5 and 15 years old with 6-year-old horses being the most affected. Data analysis showed that 93,7% of horses exhibit degenerative joint lesions of the fetlock, 86,6% showed ossification of the ungual cartilage, 78,7% had enthesophytes associated with the deep digital flexor tendons, 81,1% had enthesophytes associated with the suspensory ligament branches, and 19,6% showed a particular exostosis on the first phalanx. This large number of lesions reflects how this sport is difficult for horses and also argues that animals are suffering from a lack of welfare and care in their husbandry management.
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Kadic DTN, Minshall GJ, Wright IM. Surgical management of marginal tears/avulsions of the suspensory ligament branches in 29 Thoroughbred racehorses. Equine Vet J 2018; 51:310-315. [PMID: 30206960 DOI: 10.1111/evj.13020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 09/06/2018] [Indexed: 11/29/2022]
Abstract
BACKGROUND Suspensory ligament branch injuries are common in horses. Most of these injuries are grouped together and considered as a single pathologic entity. OBJECTIVES To report a specific injury of the abaxial margin of the suspensory ligament branches and to report its surgical management and outcome. STUDY DESIGN Retrospective case series. METHODS All horses with suspensory ligament branch injuries over a 9-year period (2007-2015) were identified. Horses with injuries which, on ultrasonographic examination, appeared to have defects in the abaxial margin of the suspensory ligament branch, that were subsequently confirmed during surgery were selected. RESULTS Twenty-nine cases fulfilled the inclusion criteria with a specific lesion location on the abaxial margin of the suspensory ligament branch. Nineteen horses raced successfully after surgery, nine returned to training but failed to race and one was lost to follow-up. MAIN LIMITATIONS The absence of a comparable population of non-surgically managed horses in this study means that the contribution of removing torn tissue cannot confidently be assessed. CONCLUSIONS The location and morphology of injuries described in this study is consistent, which suggests aetiopathogenic commonality. This case series suggests this type of injury has an identity of its own, differs from other types of suspensory ligament branch injuries and represents a previously undescribed subgroup.
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Affiliation(s)
- D T N Kadic
- Newmarket Equine Hospital, Newmarket, Suffolk, UK
| | - G J Minshall
- Newmarket Equine Hospital, Newmarket, Suffolk, UK
| | - I M Wright
- Newmarket Equine Hospital, Newmarket, Suffolk, UK
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Pluim M, Martens A, Vanderperren K, Sarrazin S, Koene M, Luciani A, van Weeren PR, Delesalle C. Short- and long term follow-up of 150 sports horses diagnosed with tendinopathy or desmopathy by ultrasonographic examination and treated with high-power laser therapy. Res Vet Sci 2018; 119:232-238. [PMID: 30005398 DOI: 10.1016/j.rvsc.2018.06.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 05/24/2018] [Accepted: 06/10/2018] [Indexed: 12/17/2022]
Affiliation(s)
- M Pluim
- Department of Virology, Parasitology & Immunology, Research Group Comparative Physiology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium; Tierklinik Luesche, Essernerstrase 39a, 49456 Bakum, Germany.
| | - A Martens
- Department of Surgery and Anaesthesiology of domestic animals, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - K Vanderperren
- Department of Veterinary Medical Imaging and Small Animal Orthopedics, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - S Sarrazin
- Department of obstetrics, Reproduction and herd health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - M Koene
- Tierklinik Luesche, Essernerstrase 39a, 49456 Bakum, Germany
| | - A Luciani
- Tierklinik Luesche, Essernerstrase 39a, 49456 Bakum, Germany
| | - P R van Weeren
- Department of Equine Sciences, Utrecht University, Yalelaan 1, 3584, CL, Utrecht, the Netherlands
| | - C Delesalle
- Department of Virology, Parasitology & Immunology, Research Group Comparative Physiology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
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14
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Rabba S, Grulke S, Verwilghen D, Evrard L, Busoni V. B-mode and power Doppler ultrasonography of the equine suspensory ligament branches: A descriptive study on 13 horses. Vet Radiol Ultrasound 2018; 59:453-460. [PMID: 29498123 DOI: 10.1111/vru.12610] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 11/21/2017] [Accepted: 11/30/2017] [Indexed: 11/29/2022] Open
Abstract
Ultrasonography is routinely used to achieve the diagnosis of equine suspensory ligament desmopathy. In human medicine, power Doppler ultrasonography has also been found to be useful for the diagnosis of tendon/ligament injuries. The aim of this prospective, pilot study was to assess the presence or absence of power Doppler signal in suspensory ligament branches and compare B-mode findings with power Doppler findings in suspensory ligament branches of lame and non-lame limbs. Thirteen horses were used (eight lame horses, with lameness related to pain in the suspensory ligament branches, and five non-lame horses). Ten lame limbs and 24 sound limbs were assessed by B-mode and power Doppler ultrasonography. The severity of power Doppler signal was scored by two independent readers. The B-mode ultrasonographic examination revealed abnormalities in branches of lame limbs and in branches of sound limbs. Suspensory ligament branches that were considered normal in B-mode showed no power Doppler signal. However, power Doppler signal was detected in suspensory ligament branches that were abnormal in B-mode, both in lame and sound limbs. Power Doppler scores were subjectively higher in suspensory ligament branches of lame limbs and in branches with more severe B-mode changes. Findings supported the use of power Doppler as an adjunctive diagnostic test for lame horses with suspected suspensory desmopathy.
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Affiliation(s)
- Silvia Rabba
- Faculty of Veterinary Medicine, Department of Clinical Sciences of Companion Animals and Equids, Diagnostic Imaging Section, University of Liège, Liège, Belgium.,Department of Diagnostic Imaging, Istituto Veterinario di Novara, Granozzo con Monticello, Italy
| | - Sigrid Grulke
- Faculty of Veterinary Medicine, Department of Clinical Sciences of Companion Animals and Equids, Equine Surgery Section, University of Liège, Liège, Belgium
| | - Denis Verwilghen
- Faculty of Veterinary Medicine, Department of Clinical Sciences of Companion Animals and Equids, Equine Surgery Section, University of Liège, Liège, Belgium.,Veterinary Teaching Hospital, Department of Veterinary Sciences, Faculty of Science, University of Sydney, Sydney, Australia
| | - Laurence Evrard
- Faculty of Veterinary Medicine, Department of Clinical Sciences of Companion Animals and Equids, Diagnostic Imaging Section, University of Liège, Liège, Belgium
| | - Valeria Busoni
- Faculty of Veterinary Medicine, Department of Clinical Sciences of Companion Animals and Equids, Diagnostic Imaging Section, University of Liège, Liège, Belgium
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15
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Fairburn AJ, Busschers E, Barr ARS. Subclinical ultrasonographic abnormalities of the suspensory ligament branches in National Hunt racehorses. Equine Vet J 2016; 49:475-479. [DOI: 10.1111/evj.12639] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 09/16/2016] [Indexed: 11/28/2022]
Affiliation(s)
- A. J. Fairburn
- School of Clinical Veterinary Science; University of Bristol; Bristol UK
| | - E. Busschers
- School of Clinical Veterinary Science; University of Bristol; Bristol UK
| | - A. R. S. Barr
- School of Clinical Veterinary Science; University of Bristol; Bristol UK
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16
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Plevin S, McLellan J, O'Keeffe T. Association between sesamoiditis, subclinical ultrasonographic suspensory ligament branch change and subsequent clinical injury in yearling Thoroughbreds. Equine Vet J 2015; 48:543-7. [DOI: 10.1111/evj.12497] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 07/23/2015] [Indexed: 11/28/2022]
Affiliation(s)
- S. Plevin
- Florida Equine Veterinary Associates; Ocala USA
| | - J. McLellan
- Florida Equine Veterinary Associates; Ocala USA
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17
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Hill AE, Gardner IA, Carpenter TE, Lee CM, Hitchens PL, Stover SM. Prevalence, location and symmetry of noncatastrophic ligamentous suspensory apparatus lesions in California Thoroughbred racehorses, and association of these lesions with catastrophic injuries. Equine Vet J 2014; 48:27-32. [DOI: 10.1111/evj.12367] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Accepted: 09/20/2014] [Indexed: 11/29/2022]
Affiliation(s)
- A. E. Hill
- California Animal Health and Food Safety Laboratory System; University of California; Davis USA
| | - I. A. Gardner
- Department of Health Management; Atlantic Veterinary College; University of Prince Edward Island; Charlottetown Canada
| | | | - C. M. Lee
- J. D. Wheat Veterinary Orthopedic Research Laboratory; Department of Anatomy, Physiology, and Cell Biology; University of California; Davis USA
| | - P. L. Hitchens
- J. D. Wheat Veterinary Orthopedic Research Laboratory; Department of Anatomy, Physiology, and Cell Biology; University of California; Davis USA
| | - S. M. Stover
- J. D. Wheat Veterinary Orthopedic Research Laboratory; Department of Anatomy, Physiology, and Cell Biology; University of California; Davis USA
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18
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Marneris D, Dyson SJ. Clinical features, diagnostic imaging findings and concurrent injuries in 71 sports horses with suspensory branch injuries. EQUINE VET EDUC 2014. [DOI: 10.1111/eve.12175] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- D. Marneris
- Centre for Equine Studies; Animal Health Trust; Newmarket, Suffolk UK
| | - S. J. Dyson
- Centre for Equine Studies; Animal Health Trust; Newmarket, Suffolk UK
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19
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McLellan J, Plevin S. Do radiographic signs of sesamoiditis in yearling Thoroughbreds predispose the development of suspensory ligament branch injury? Equine Vet J 2013; 46:446-50. [DOI: 10.1111/evj.12154] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2012] [Accepted: 07/26/2013] [Indexed: 11/29/2022]
Affiliation(s)
- J. McLellan
- Florida Equine Veterinary Associates; Florida USA
| | - S. Plevin
- Florida Equine Veterinary Associates; Florida USA
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20
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Plevin S, McLellan J. The effect of insertional suspensory branch desmitis on racing performance in juvenile Thoroughbred racehorses. Equine Vet J 2013; 46:451-7. [PMID: 23937263 DOI: 10.1111/evj.12161] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2012] [Accepted: 07/26/2013] [Indexed: 11/30/2022]
Abstract
REASONS FOR PERFORMING THE STUDY Limited information exists regarding the prognosis for juvenile racehorses sustaining injury to the suspensory ligament branch insertion (JISBI). OBJECTIVES To investigate the effect of JISBI on racing performance; and to assess whether the severity of JISBI is prognostically important. STUDY DESIGN Retrospective cohort study. METHODS Records were reviewed for 896 juvenile Thoroughbreds in training, to identify horses with JISBI limited to one branch (cases). The ability of cases to start a race was compared to their cohorts. Race records of maternal siblings were compared to cases. RESULTS The prevalence of JISBI for this population was 9.5%. Cohorts were 3.2 times more likely to start as a 2-year-old and 3.6 times more likely to start as a 3-year-old compared to horses with JISBI. Of 58 cases that were compared to maternal siblings, the total earnings per start (EPS), 2- and 3-year-old EPS were all reduced (P<0.01). Cases raced a mean of 3.8 times compared to 7.4 races for controls over the study period and were 113.2 days older by the time of first start (P<0.01). 'Speed figures' and EPS were, however, similar between cases that had raced and controls. Cases with a moderate-severe lesion (≥ Grade 2) were at significantly greater risk of reinjury than mild cases (P<0.05). CONCLUSIONS JISBI causes decreased racing ability as a 2-year-old. Mild cases perform similarly to controls by their 3-year-old season, but more severe cases demonstrate reduced ability as a 3-year-old, with an increased likelihood of reinjury. Although the wastage was higher in case horses with JISBI, individual cases that make it to a race have similar earnings per start as their controls.
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Affiliation(s)
- S Plevin
- Florida Equine Veterinary Associates, Florida, USA
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21
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WRIGHT S. Highlights of recent clinically relevant papers. EQUINE VET EDUC 2012. [DOI: 10.1111/j.2042-3292.2012.00450.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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