Investigation of the Reliability of Saddle Fitters to Determine the Position of the Last Thoracic Vertebra of Horses Using Palpation Techniques: A Pilot Study

Kathryn J. Nankervis, Francesca Bradley, Katherine Kosek, Sue J. Dyson

    Research output: Contribution to journalJournal Article

    1 Citation (Scopus)

    Abstract

    Published guidelines indicate an English saddle tree should not extend beyond the 18th thoracic vertebra (T18). The study aimed to assess reliability of saddle fitters (SFs) to identify the T18 spinous process (SP). Part 1 investigated agreement between T18 (T18SF) as identified by three SFs using palpation and a veterinary surgeon (VS) using radiography (T18VS) in seven horses. Saddle fitter 1 and SF2 palpated the lumbosacral joint and counted cranially six SPs, whereas SF3 followed the rib curvature toward the dorsal midline. In part 2, SF1 and SF2 identified T18 by counting cranially five SPs in seven horses on two occasions. Agreement between SFs and VS was assessed using t tests and Bland-Altman plots. Interrater and intrarater reliability were estimated using intraclass correlation coefficients. In part 1, SF1 and SF2 found T18SF 4.3 cm (±4.1 and 4.0 cm, respectively) cranial to T18VS. Mean difference between T18SF3 and T18VS was 0.1 ± 4.9 cm (95% CI: −9.5 cm, 9.6 cm, P =.976). When counting cranially five SPs, mean difference between T18SF1 and T18VS was −1.5 ± 3.4 cm (95% CI: −8.3 cm; 5.1 cm; P =.265) and T18SF2 and T18VS was −0.3 cm ± 4.5 cm (95% CI: −8.8 cm; 8.5 cm; P =.847). Interrater reliability was “good” (ICC = 0.798). Intrarater reliability was “excellent” for SF1 (ICC = 0.905) and “good” for SF2 (ICC = 0.847). Counting cranially five SPs from the lumbosacral joint, when coupled with observation of the rib position and curvature should ensure a saddle is not placed beyond T18.
    Original languageEnglish
    Pages (from-to)1-7
    Number of pages7
    JournalJournal of Equine Veterinary Science
    Volume77
    DOIs
    Publication statusPublished - 1 Jun 2019

    Fingerprint

    Thoracic Vertebrae
    saddles
    Palpation
    Ribs
    chest
    vertebrae
    Horses
    Joints
    horses
    Radiography
    Observation
    Guidelines
    ribs
    veterinarians
    methodology
    radiography
    Surgeons

    Keywords

    • 18th rib
    • Lumbosacral joint
    • Saddle fit
    • Thoracolumbar

    Cite this

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    title = "Investigation of the Reliability of Saddle Fitters to Determine the Position of the Last Thoracic Vertebra of Horses Using Palpation Techniques: A Pilot Study",
    abstract = "Published guidelines indicate an English saddle tree should not extend beyond the 18th thoracic vertebra (T18). The study aimed to assess reliability of saddle fitters (SFs) to identify the T18 spinous process (SP). Part 1 investigated agreement between T18 (T18SF) as identified by three SFs using palpation and a veterinary surgeon (VS) using radiography (T18VS) in seven horses. Saddle fitter 1 and SF2 palpated the lumbosacral joint and counted cranially six SPs, whereas SF3 followed the rib curvature toward the dorsal midline. In part 2, SF1 and SF2 identified T18 by counting cranially five SPs in seven horses on two occasions. Agreement between SFs and VS was assessed using t tests and Bland-Altman plots. Interrater and intrarater reliability were estimated using intraclass correlation coefficients. In part 1, SF1 and SF2 found T18SF 4.3 cm (±4.1 and 4.0 cm, respectively) cranial to T18VS. Mean difference between T18SF3 and T18VS was 0.1 ± 4.9 cm (95{\%} CI: −9.5 cm, 9.6 cm, P =.976). When counting cranially five SPs, mean difference between T18SF1 and T18VS was −1.5 ± 3.4 cm (95{\%} CI: −8.3 cm; 5.1 cm; P =.265) and T18SF2 and T18VS was −0.3 cm ± 4.5 cm (95{\%} CI: −8.8 cm; 8.5 cm; P =.847). Interrater reliability was “good” (ICC = 0.798). Intrarater reliability was “excellent” for SF1 (ICC = 0.905) and “good” for SF2 (ICC = 0.847). Counting cranially five SPs from the lumbosacral joint, when coupled with observation of the rib position and curvature should ensure a saddle is not placed beyond T18.",
    keywords = "18th rib, Lumbosacral joint, Saddle fit, Thoracolumbar",
    author = "Nankervis, {Kathryn J.} and Francesca Bradley and Katherine Kosek and Dyson, {Sue J.}",
    year = "2019",
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    doi = "10.1016/j.jevs.2019.02.003",
    language = "English",
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    Investigation of the Reliability of Saddle Fitters to Determine the Position of the Last Thoracic Vertebra of Horses Using Palpation Techniques: A Pilot Study. / Nankervis, Kathryn J.; Bradley, Francesca; Kosek, Katherine; Dyson, Sue J.

    In: Journal of Equine Veterinary Science, Vol. 77, 01.06.2019, p. 1-7.

    Research output: Contribution to journalJournal Article

    TY - JOUR

    T1 - Investigation of the Reliability of Saddle Fitters to Determine the Position of the Last Thoracic Vertebra of Horses Using Palpation Techniques: A Pilot Study

    AU - Nankervis, Kathryn J.

    AU - Bradley, Francesca

    AU - Kosek, Katherine

    AU - Dyson, Sue J.

    PY - 2019/6/1

    Y1 - 2019/6/1

    N2 - Published guidelines indicate an English saddle tree should not extend beyond the 18th thoracic vertebra (T18). The study aimed to assess reliability of saddle fitters (SFs) to identify the T18 spinous process (SP). Part 1 investigated agreement between T18 (T18SF) as identified by three SFs using palpation and a veterinary surgeon (VS) using radiography (T18VS) in seven horses. Saddle fitter 1 and SF2 palpated the lumbosacral joint and counted cranially six SPs, whereas SF3 followed the rib curvature toward the dorsal midline. In part 2, SF1 and SF2 identified T18 by counting cranially five SPs in seven horses on two occasions. Agreement between SFs and VS was assessed using t tests and Bland-Altman plots. Interrater and intrarater reliability were estimated using intraclass correlation coefficients. In part 1, SF1 and SF2 found T18SF 4.3 cm (±4.1 and 4.0 cm, respectively) cranial to T18VS. Mean difference between T18SF3 and T18VS was 0.1 ± 4.9 cm (95% CI: −9.5 cm, 9.6 cm, P =.976). When counting cranially five SPs, mean difference between T18SF1 and T18VS was −1.5 ± 3.4 cm (95% CI: −8.3 cm; 5.1 cm; P =.265) and T18SF2 and T18VS was −0.3 cm ± 4.5 cm (95% CI: −8.8 cm; 8.5 cm; P =.847). Interrater reliability was “good” (ICC = 0.798). Intrarater reliability was “excellent” for SF1 (ICC = 0.905) and “good” for SF2 (ICC = 0.847). Counting cranially five SPs from the lumbosacral joint, when coupled with observation of the rib position and curvature should ensure a saddle is not placed beyond T18.

    AB - Published guidelines indicate an English saddle tree should not extend beyond the 18th thoracic vertebra (T18). The study aimed to assess reliability of saddle fitters (SFs) to identify the T18 spinous process (SP). Part 1 investigated agreement between T18 (T18SF) as identified by three SFs using palpation and a veterinary surgeon (VS) using radiography (T18VS) in seven horses. Saddle fitter 1 and SF2 palpated the lumbosacral joint and counted cranially six SPs, whereas SF3 followed the rib curvature toward the dorsal midline. In part 2, SF1 and SF2 identified T18 by counting cranially five SPs in seven horses on two occasions. Agreement between SFs and VS was assessed using t tests and Bland-Altman plots. Interrater and intrarater reliability were estimated using intraclass correlation coefficients. In part 1, SF1 and SF2 found T18SF 4.3 cm (±4.1 and 4.0 cm, respectively) cranial to T18VS. Mean difference between T18SF3 and T18VS was 0.1 ± 4.9 cm (95% CI: −9.5 cm, 9.6 cm, P =.976). When counting cranially five SPs, mean difference between T18SF1 and T18VS was −1.5 ± 3.4 cm (95% CI: −8.3 cm; 5.1 cm; P =.265) and T18SF2 and T18VS was −0.3 cm ± 4.5 cm (95% CI: −8.8 cm; 8.5 cm; P =.847). Interrater reliability was “good” (ICC = 0.798). Intrarater reliability was “excellent” for SF1 (ICC = 0.905) and “good” for SF2 (ICC = 0.847). Counting cranially five SPs from the lumbosacral joint, when coupled with observation of the rib position and curvature should ensure a saddle is not placed beyond T18.

    KW - 18th rib

    KW - Lumbosacral joint

    KW - Saddle fit

    KW - Thoracolumbar

    U2 - 10.1016/j.jevs.2019.02.003

    DO - 10.1016/j.jevs.2019.02.003

    M3 - Journal Article

    VL - 77

    SP - 1

    EP - 7

    JO - Journal of Equine Veterinary Science

    JF - Journal of Equine Veterinary Science

    SN - 0737-0806

    ER -