Short‐ and long‐term racing performance of Standardbred pacers and trotters after early surgical intervention for tarsal osteochondrosis

REASONS FOR PERFORMING STUDY: Osteochondrosis (OC) is commonly diagnosed in young Standardbred racehorses but its effect on performance when surgically treated at a young age is still incompletely understood. This is especially true for Standardbred pacers, which are underrepresented in the existing...

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Veröffentlicht in:Equine veterinary journal 2015-07, Vol.47 (4), p.438-444
Hauptverfasser: McCoy, A. M., Ralston, S. L., McCue, M. E.
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creator McCoy, A. M.
Ralston, S. L.
McCue, M. E.
description REASONS FOR PERFORMING STUDY: Osteochondrosis (OC) is commonly diagnosed in young Standardbred racehorses but its effect on performance when surgically treated at a young age is still incompletely understood. This is especially true for Standardbred pacers, which are underrepresented in the existing literature. OBJECTIVE: To characterise the short‐ (2‐year‐old) and long‐term (through 5‐year‐old) racing performance in Standardbred pacers and trotters after early surgical intervention (
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M. ; Ralston, S. L. ; McCue, M. E.</creator><creatorcontrib>McCoy, A. M. ; Ralston, S. L. ; McCue, M. E.</creatorcontrib><description>REASONS FOR PERFORMING STUDY: Osteochondrosis (OC) is commonly diagnosed in young Standardbred racehorses but its effect on performance when surgically treated at a young age is still incompletely understood. This is especially true for Standardbred pacers, which are underrepresented in the existing literature. OBJECTIVE: To characterise the short‐ (2‐year‐old) and long‐term (through 5‐year‐old) racing performance in Standardbred pacers and trotters after early surgical intervention (&lt;17 months of age) for tarsal OC. STUDY DESIGN: Retrospective clinical study. METHODS: The study population consisted of related, age‐matched Standardbred racehorses (n = 278; 151 pacers, 127 trotters) with (n = 133) or without (n = 145) one or more tarsal OC lesions. All OC‐affected horses were treated surgically prior to being sold as yearlings. Data obtained from publicly available race records for each horse included starts, wins, finishes in the top 3 (win, place or show), earnings and fastest time. Comparisons between OC‐affected and unaffected horses were made for the entire population and within gaits. A smaller related population (n = 94) had these performance measures evaluated for their 2–5‐year‐old racing seasons. RESULTS: Osteochondrosis status was associated with few performance measures. Trotters were at higher risk for lesions of the medial malleolus but lower risk for lesions of the distal intermediate ridge of the tibia than were pacers. Horses with bilateral OC lesions and lateral trochlear ridge (LTR) lesions started fewer races at 2 years of age than those with unilateral lesions or without LTR lesions. CONCLUSIONS: Osteochondrosis seemed to have minimal effect on racing performance in this cohort, although horses with bilateral and LTR lesions started fewer races at 2 years. There was evidence for different distribution of OC lesions among pacers and trotters, which should be explored further. Standardbreds undergoing early removal of tarsal OC lesions can be expected to perform equivalently to their unaffected counterparts.</description><identifier>ISSN: 0425-1644</identifier><identifier>EISSN: 2042-3306</identifier><identifier>DOI: 10.1111/evj.12297</identifier><identifier>PMID: 24819047</identifier><identifier>CODEN: EQVJAI</identifier><language>eng</language><publisher>United States: British Equine Veterinary Association</publisher><subject>Age ; Aging ; Animals ; arthroscopy ; Female ; horse ; Horse Diseases - surgery ; Horses ; Male ; osteochondrosis ; Osteochondrosis - surgery ; Osteochondrosis - veterinary ; racehorses ; races ; racing ; racing performance ; Retrospective Studies ; risk ; Sports ; Standardbred ; Tarsus, Animal - surgery ; tibia ; yearlings</subject><ispartof>Equine veterinary journal, 2015-07, Vol.47 (4), p.438-444</ispartof><rights>2014 EVJ Ltd</rights><rights>2014 EVJ Ltd.</rights><rights>2015 EVJ Ltd</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fevj.12297$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fevj.12297$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>230,314,776,780,881,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24819047$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>McCoy, A. M.</creatorcontrib><creatorcontrib>Ralston, S. L.</creatorcontrib><creatorcontrib>McCue, M. E.</creatorcontrib><title>Short‐ and long‐term racing performance of Standardbred pacers and trotters after early surgical intervention for tarsal osteochondrosis</title><title>Equine veterinary journal</title><addtitle>Equine Vet J</addtitle><description>REASONS FOR PERFORMING STUDY: Osteochondrosis (OC) is commonly diagnosed in young Standardbred racehorses but its effect on performance when surgically treated at a young age is still incompletely understood. This is especially true for Standardbred pacers, which are underrepresented in the existing literature. OBJECTIVE: To characterise the short‐ (2‐year‐old) and long‐term (through 5‐year‐old) racing performance in Standardbred pacers and trotters after early surgical intervention (&lt;17 months of age) for tarsal OC. STUDY DESIGN: Retrospective clinical study. METHODS: The study population consisted of related, age‐matched Standardbred racehorses (n = 278; 151 pacers, 127 trotters) with (n = 133) or without (n = 145) one or more tarsal OC lesions. All OC‐affected horses were treated surgically prior to being sold as yearlings. Data obtained from publicly available race records for each horse included starts, wins, finishes in the top 3 (win, place or show), earnings and fastest time. Comparisons between OC‐affected and unaffected horses were made for the entire population and within gaits. A smaller related population (n = 94) had these performance measures evaluated for their 2–5‐year‐old racing seasons. RESULTS: Osteochondrosis status was associated with few performance measures. Trotters were at higher risk for lesions of the medial malleolus but lower risk for lesions of the distal intermediate ridge of the tibia than were pacers. Horses with bilateral OC lesions and lateral trochlear ridge (LTR) lesions started fewer races at 2 years of age than those with unilateral lesions or without LTR lesions. CONCLUSIONS: Osteochondrosis seemed to have minimal effect on racing performance in this cohort, although horses with bilateral and LTR lesions started fewer races at 2 years. There was evidence for different distribution of OC lesions among pacers and trotters, which should be explored further. Standardbreds undergoing early removal of tarsal OC lesions can be expected to perform equivalently to their unaffected counterparts.</description><subject>Age</subject><subject>Aging</subject><subject>Animals</subject><subject>arthroscopy</subject><subject>Female</subject><subject>horse</subject><subject>Horse Diseases - surgery</subject><subject>Horses</subject><subject>Male</subject><subject>osteochondrosis</subject><subject>Osteochondrosis - surgery</subject><subject>Osteochondrosis - veterinary</subject><subject>racehorses</subject><subject>races</subject><subject>racing</subject><subject>racing performance</subject><subject>Retrospective Studies</subject><subject>risk</subject><subject>Sports</subject><subject>Standardbred</subject><subject>Tarsus, Animal - surgery</subject><subject>tibia</subject><subject>yearlings</subject><issn>0425-1644</issn><issn>2042-3306</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFks1uEzEQxy0EoqFw4AXAEhcu2_p7dy9IVdS0VAUOoXC0vF5v4rCxg70J5MYDcOAZeRKmSYmAC5Ysj2d-M_prZhB6SskJhXPqNosTylhd3kMjRgQrOCfqPhqBKQuqhDhCj3JeEMI5E-whOmKiojUR5Qh9n85jGn5--4FNaHEfwwzswaUlTsb6MMMrl7qYliZYh2OHpwNwJrVNci1eGetS3mUOKQ7D7tPBg51J_RbndZp5a3rsAzg3Lgw-Bgzl8GBSBn_Mg4t2HkObYvb5MXrQmT67J3fvMbqZnL8fXxbX7y5ej8-ui04oURZdW7LSdaCf1a6RNWEVlW3NTeNa2dlKCVcySYng1BpqVNlUVlWN7YworVSSH6NX-7qrdbN0rQVhyfR6lfzSpK2Oxuu_I8HP9SxutIAmi5pAgZd3BVL8vHZ50Eufret7E1xcZ00rSojiksn_owr0Uy5hNsfoxT_oIq5TgE4AVdWsJrK8pZ79Kf6g-vdMATjdA19877aHOCX6dlk0LIveLYs-_3C1MyCj2Gd4mMfXQ4ZJn7QqeSn1x7cXenz5Rk7oFdUT4J_v-c5EbWbJZ30zZYQqApfxqua_AJV9zn8</recordid><startdate>201507</startdate><enddate>201507</enddate><creator>McCoy, A. M.</creator><creator>Ralston, S. L.</creator><creator>McCue, M. E.</creator><general>British Equine Veterinary Association</general><general>Blackwell Publishing Ltd</general><general>Wiley Subscription Services, Inc</general><scope>FBQ</scope><scope>BSCLL</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>K9.</scope><scope>7X8</scope><scope>7S9</scope><scope>L.6</scope><scope>5PM</scope></search><sort><creationdate>201507</creationdate><title>Short‐ and long‐term racing performance of Standardbred pacers and trotters after early surgical intervention for tarsal osteochondrosis</title><author>McCoy, A. M. ; Ralston, S. L. ; McCue, M. E.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-f4647-fd727ef04729eb5902815d93abed5fc864e72510431ca1a67b8c68bcfa47c5653</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Age</topic><topic>Aging</topic><topic>Animals</topic><topic>arthroscopy</topic><topic>Female</topic><topic>horse</topic><topic>Horse Diseases - surgery</topic><topic>Horses</topic><topic>Male</topic><topic>osteochondrosis</topic><topic>Osteochondrosis - surgery</topic><topic>Osteochondrosis - veterinary</topic><topic>racehorses</topic><topic>races</topic><topic>racing</topic><topic>racing performance</topic><topic>Retrospective Studies</topic><topic>risk</topic><topic>Sports</topic><topic>Standardbred</topic><topic>Tarsus, Animal - surgery</topic><topic>tibia</topic><topic>yearlings</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>McCoy, A. M.</creatorcontrib><creatorcontrib>Ralston, S. L.</creatorcontrib><creatorcontrib>McCue, M. E.</creatorcontrib><collection>AGRIS</collection><collection>Istex</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>MEDLINE - Academic</collection><collection>AGRICOLA</collection><collection>AGRICOLA - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Equine veterinary journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>McCoy, A. M.</au><au>Ralston, S. L.</au><au>McCue, M. E.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Short‐ and long‐term racing performance of Standardbred pacers and trotters after early surgical intervention for tarsal osteochondrosis</atitle><jtitle>Equine veterinary journal</jtitle><addtitle>Equine Vet J</addtitle><date>2015-07</date><risdate>2015</risdate><volume>47</volume><issue>4</issue><spage>438</spage><epage>444</epage><pages>438-444</pages><issn>0425-1644</issn><eissn>2042-3306</eissn><coden>EQVJAI</coden><abstract>REASONS FOR PERFORMING STUDY: Osteochondrosis (OC) is commonly diagnosed in young Standardbred racehorses but its effect on performance when surgically treated at a young age is still incompletely understood. This is especially true for Standardbred pacers, which are underrepresented in the existing literature. OBJECTIVE: To characterise the short‐ (2‐year‐old) and long‐term (through 5‐year‐old) racing performance in Standardbred pacers and trotters after early surgical intervention (&lt;17 months of age) for tarsal OC. STUDY DESIGN: Retrospective clinical study. METHODS: The study population consisted of related, age‐matched Standardbred racehorses (n = 278; 151 pacers, 127 trotters) with (n = 133) or without (n = 145) one or more tarsal OC lesions. All OC‐affected horses were treated surgically prior to being sold as yearlings. Data obtained from publicly available race records for each horse included starts, wins, finishes in the top 3 (win, place or show), earnings and fastest time. Comparisons between OC‐affected and unaffected horses were made for the entire population and within gaits. A smaller related population (n = 94) had these performance measures evaluated for their 2–5‐year‐old racing seasons. RESULTS: Osteochondrosis status was associated with few performance measures. Trotters were at higher risk for lesions of the medial malleolus but lower risk for lesions of the distal intermediate ridge of the tibia than were pacers. Horses with bilateral OC lesions and lateral trochlear ridge (LTR) lesions started fewer races at 2 years of age than those with unilateral lesions or without LTR lesions. CONCLUSIONS: Osteochondrosis seemed to have minimal effect on racing performance in this cohort, although horses with bilateral and LTR lesions started fewer races at 2 years. There was evidence for different distribution of OC lesions among pacers and trotters, which should be explored further. Standardbreds undergoing early removal of tarsal OC lesions can be expected to perform equivalently to their unaffected counterparts.</abstract><cop>United States</cop><pub>British Equine Veterinary Association</pub><pmid>24819047</pmid><doi>10.1111/evj.12297</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record>
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subjects Age
Aging
Animals
arthroscopy
Female
horse
Horse Diseases - surgery
Horses
Male
osteochondrosis
Osteochondrosis - surgery
Osteochondrosis - veterinary
racehorses
races
racing
racing performance
Retrospective Studies
risk
Sports
Standardbred
Tarsus, Animal - surgery
tibia
yearlings
title Short‐ and long‐term racing performance of Standardbred pacers and trotters after early surgical intervention for tarsal osteochondrosis
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