Abstract: Bone stress injuries and fatigue fractures of the pelvis are reported in only a small number of endurance horses. Objective: To describe bone stress injuries and fatigue fracture of the pelvis in endurance horses trained and competing on the deep sand surfaces. Methods: Retrospective case series. Methods: Medical records of horses used for endurance and diagnosed with bone stress injuries and/or fatigue fractures of the pelvis by ultrasound were reviewed. The bone stress injuries and fatigue fractures were classified as affecting the iliac wing, the iliac shaft, the tuber ischiadicum, the rest of the ischium or the pubis and subdivided into four fracture configurations: isolated iliac fracture, isolated fracture of the floor of the pelvis, isolated tuber ischiadicum fracture and multiple fractures. Descriptive statistics were performed overall and on fracture configurations for age, sex, breed, level of activity, affected limbs, previous injuries, development of the injury, seasons in the UAE, physical and dynamic findings and outcome. For each fracture configuration and the outcome, multivariable logistic regression models were developed after univariable logistic regression and collinearity analyses. Significance was set at P ≤ .05. Results: Sixty endurance horses were included; 48% (95% CI: 36%-61%) had isolated iliac fracture, 17% (7%-26%) isolated fracture of the floor of the pelvis, 15% (6%-24%) isolated tuber ischiadicum fracture and 20% (10%-30%) had multiple fractures. Breed (OR, 4.42; 95%CI, 1.02-19.57) was significantly associated with isolated iliac fracture and asymmetry of bone landmarks (OR, 7.42; 95% CI, 1.47-37.45) with isolated tuber ischiadicum fracture. Degree of lameness (OR, 3.08; 95% CI, 1.07-8.9) and trotting on three tracks (OR, 8.62; 95% CI, 1.43-51.9) were significantly associated with the diagnosis of isolated fracture of the floor of the pelvis. Conclusions: Data acquired in a single country. Conclusions: Bone stress injuries and fatigue fractures of the pelvis can affect endurance horses trained and competing on deep sand. Isolated bone stress injuries and/or fatigue fractures of the ileum were the commonest followed by multiple pelvic bones involvement. The presence of lameness and trotting on three tracks suggest the presence of bone stress injuries and/or fatigue fractures of the floor of the pelvis; asymmetry of bony landmarks is more commonly detected in horses with bone stress injuries and/or fatigue fractures of the tuber ischiadicum.
The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.
The research article investigates the occurrence of bone stress injuries and fatigue fractures in the pelvis of endurance horses, primarily focusing on those trained on deep sand surfaces. The study also identifies signs associated with specific fracture configurations.
Methods
The study was carried out as a retrospective case series, looking back at the medical records of endurance horses diagnosed with bone stress injuries and/or pelvic fatigue fractures using ultrasound.
The injuries and fractures were categorized based on the area of the pelvis impacted: the iliac wing, the iliac shaft, the tuber ischiadicum, the rest of the ischium or the pubis. These were further divided into four configurations: isolated iliac fracture, isolated pelvic floor fracture, isolated tuber ischiadicum fracture, and multiple fractures.
Features like age, sex, breed, level of activity, affected limbs, previous injuries, injury development, UAE seasons, physical and dynamic findings, and outcomes were examined using descriptive statistics.
To find associations between fracture configuration and outcome, multivariable logistic regression models were created.
Results
Out of the 60 endurance horses included in the study, 48% had isolated iliac fractures, 17% had isolated pelvic floor fractures, 15% had isolated tuber ischiadicum fractures, and 20% had multiple fractures.
Breed was significantly associated with isolated iliac fractures, while asymmetry in bone landmarks was associated with isolated tuber ischiadicum fractures.
A higher degree of lameness and horses trotting on three tracks were significantly associated with the diagnosis of an isolated pelvic floor fracture.
Conclusions
The study concluded that bone stress injuries and fatigue fractures of the pelvis can occur in endurance horses trained and competing on deep sand. Isolated injuries or fractures of the ileum were the most common, followed by multiple pelvic bone involvement.
The presence of lameness and horses trotting on three tracks suggested the presence of bone stress injuries and/or fatigue fractures of the pelvic floor. In contrast, the asymmetry of bony landmarks is more common in horses with injuries and/or fractures of the tuber ischiadicum.
Cite This Article
APA
Puccetti M, Beccati F, Denoix JM.
(2021).
Bone stress injuries and fatigue fractures of the pelvis in endurance horses.
Equine Vet J, 54(6), 1064-1075.
https://doi.org/10.1111/evj.13536
Ducharme NG, Nixon AJ. Fractures of the pelvis.. 2020; p. 723-33.
Pilsworth RC, Shepherd MC, Herinckx BMB, Holmes MA. Fracture of the wing of the ileum, adjacent to the sacroiliac joint, in Thoroughbred racehorses.. Equine Vet J 1994;26:94-9.
Riggs CM. Fractures-a preventable hazard of racing Thoroughbred?. Vet J 2002;163:19-29.
Bahrens SB, Deren ME, Matson A, Fadale PD, Monchik KO. Stress fractures of the pelvis and legs in athletes: a review.. Sports Health 2013;5:165-74.
Kaeding CC, Miller T. Classification of stress fractures.. 2015; p. 51-62.
Saunier J, Chapurlat R. Stress fracture in athletes.. Joint Bone Spine 2018;85:307-10.
Breathnach O, Splinder KP, Wasserstein DN. Pathophysiology and epidemiology of stress fractures.. 2020; p. 29-39.
Davidson EJ, Ross MW. Clinical recognition of stress-related bone injury in racehorses.. Clin Tech Equine Pract 2003;2:296-311.
Hennessy SE, Muurlink MA, Anderson GA, Puksmann TN, Whitton RC. Effect of displaced versus non-displaced pelvic fractures on long-term racing performance in 31 Thororughbred racehorses.. Aust Vet J 2013;91:246-50.
Beccati F, Cerocchi A, Conte M, Pilati N, Pepe M. Computed tomographic diagnosis of incomplete palmar cortical (fatigue) fracture of the third metacarpal bone in two young adult endurance horses.. Equine Vet Educ 2019;31:e17-e22.
Ross MW. Movement.. 2011; p. 64-80.
Walker WT, Werpy NM, Goodrich LR. Procedure for the transrectal and transcutaneous ultrasonographic diagnosis of pelvic fractures in the horse.. J Equine Vet Sci 2012;32:222-30.
Tallaj A, Coudry V, Denoix JM. Transrectal ultrasonographic examination of the sacroiliac joints of the horse: techniques and normal images.. Equine Vet Educ 2019;31:666-71.
Bianchi S. Ultrasound and bone: a pictorial review.. J Ultrasound 2020;23:227-57.
Denoix JM. Approche sémiologique des régions lombo-sacrale et sacro-iliaque chez le Cheval.. Prat Vét Équine 1992;24:23-38.
Robert C. Veterinary aspect of training and racing endurance horses.. 2013; p. 1083-106.
Hornof WJ, Stover SM, Koblik PD, Arthur RM. Oblique views of the ileum and the scintigraphic appearance of stress fractures of the ileum.. Equine Vet J 1996;28:355-8.
Dalglish RA, Rick MC. Lameness in the Arabian racehorses: middle east and North America.. 2011; p. 1062-75.
Stover SM, Ardans AA, Read DH, Johnson BJ, Barr BC, Daft BM. Patterns of stress fractures associated with complete bone fractures in racehorses.. Proc Am Assoc Equine Practnrs 1993;39:131-2.
Fukushima Y, Ray J, Kraus E, Syrop IP, Fredericson M. A review and proposed rationale for the use of ultrasonography as a diagnostic modality in the identification of bone stress injuries.. J Ultrasound Med 2018;37:2297-307.
Moraux A, Gitto S, Bianchi S. Ultrasound of the normal and pathologic periosteum.. J Ultrasound Med 2019;38:775-84.
Major NM, Helms CA. Pelvic stress injuries: the relationship between osteitis pubis (symphysis pubic stress injury) and sacroiliac abnormalities in athletes.. Skeletal Radiol 1997;26:71-717.
Miller C, Major N, Toth A. Pelvic stress injuries in athlete: management and prevention.. Sports Med 2003;33:1002-12.
Douglas SR, Troy KL, Tenforde AS. Radiographic pattern to recognize overuse injury in runners: the ipsilateral pubic ramus and sacral bone stress injury.. PM&R 2020;12(12):1279-1280.
Barone R. Cintura e arto pelvici - Cintura pelvica.. 2006; p. 541-578.
Bressou C, Pavaux C, Vladutiu O. Mécano-structure et fracture du bassin chez le cheval.. Revue Méd Vét 1979;130:543-66.
Denoix JM. Aspects fonctionnels des régions lombo-sacrales et sacro-iliaque du Cheval.. Prat Vét Équine 1992;24:13-21.
Paris A, Beccati F, Pepe M. Type, prevalence, and risk factors for development of orthopaedics injuries in endurance horses during training and competition.. J Am Vet Med Assoc 2021;258:1109-18.
Maeda Y, Hanada M, Oikawa M. Epidemiology of racing injuries in Thoroughbred racehorses with special reference to bone fractures: Japanese experience from 1980s to 2000s.. J Equine Sci 2016;27:81-97.
Barrett RS, Neal RJ, Roberts LJ. The dynamic loading response of surfaces encountered in beach running.. J Sci Med Sport 1997;1:1-11.
Pinnington HC, Dawson B. The energy cost of running on grass compared to soft dry beach sand.. J Sci Med Sport 2001;4:416-30.
Chateau H, Holden L, Robin D, Falala S, Pourcelot P, Estoup P. Biomechanical analysis of hoof landing and stride parameters in harness trotters horses running on different tracks on sand beach (from wet to dry) and on an asphalt road.. Equine Vet J 2010;42(suppl 38):488-95.
Binnie MJ, Dawson B, Pinnington H, Landers G, Peeling P. Sand training: a review of current research and practical applications.. J. Sports Sci 2014;32(1):8-15.
Federation Equestre Internationale database. Federation Equestre Internationale; 2020 [cited 2000 Dec 15]. Available from https://data.fei.org/Horse/Search.aspx