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Ultrasound evaluation of the abductor hallucis muscle: Reliability study.

Cameron AF, Rome K, Hing WA - J Foot Ankle Res (2008)

Bottom Line: Interclass correlation coefficients (ICC) with 95% confidence intervals (CI) were used to calculate both within and between session intra-tester reliability.The within-session reliability results demonstrated for dorso-plantar thickness an ICC of 0.97 (95% CI: 0.99-0.99); medio-lateral width an ICC: of 0.97 (95% CI: 0.92-0.97) and cross-sectional area an ICC of 0.98 (95% CI: 0.98-0.99).Between-session reliability results demonstrated for dorso-plantar thickness an ICC of 0.97 (95% CI: 0.95 to 0.98); medio-lateral width an ICC of 0.94 (95% CI 0.90 to 0.96) and for cross-sectional area an ICC of 0.79 (95% CI 0.65 to 0.88).

View Article: PubMed Central - HTML - PubMed

Affiliation: AUT University, School of Rehabilitation & Occupation Studies, Health & Rehabilitation Research Centre, Private Bag 92006, Auckland, 1142, New Zealand. wayne.hing@aut.ac.nz.

ABSTRACT

Background: The Abductor hallucis muscle (AbdH) plays an integral role during gait and is often affected in pathological foot conditions. The aim of this study was to evaluate the within and between-session intra-tester reliability using diagnostic ultrasound of the dorso-plantar thickness, medio-lateral width and cross-sectional area, of the AbdH in asymptomatic adults.

Methods: The AbdH muscles of thirty asymptomatic subjects were imaged and then measured using a Philips HD11 Ultrasound machine. Interclass correlation coefficients (ICC) with 95% confidence intervals (CI) were used to calculate both within and between session intra-tester reliability.

Results: The within-session reliability results demonstrated for dorso-plantar thickness an ICC of 0.97 (95% CI: 0.99-0.99); medio-lateral width an ICC: of 0.97 (95% CI: 0.92-0.97) and cross-sectional area an ICC of 0.98 (95% CI: 0.98-0.99). Between-session reliability results demonstrated for dorso-plantar thickness an ICC of 0.97 (95% CI: 0.95 to 0.98); medio-lateral width an ICC of 0.94 (95% CI 0.90 to 0.96) and for cross-sectional area an ICC of 0.79 (95% CI 0.65 to 0.88).

Conclusion: Diagnostic ultrasound has the potential to be a reliable tool for evaluating the AbdH muscle in asymptomatic subjects. Subsequent studies may be conducted to provide a better understanding of the AbdH function in foot and ankle pathologies.

No MeSH data available.


Related in: MedlinePlus

95% Limits of agreement for the measurement of dorso-planter thickness (mm).
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Figure 5: 95% Limits of agreement for the measurement of dorso-planter thickness (mm).

Mentions: Figure 5 illustrates the Bland & Altman plot between Session 1 and Session 2 for AbdH dorso-plantar thickness, displaying a 95% limits of agreement, bias of -0.024, with SD of bias of 0.35 (Lower limit -0.67, Upper limit 0.72). Figure 6 illustrates the Bland & Altman plot between Session 1 and Session 2 for AbdH cross-sectional area, with a 95% limits of agreement, bias of -7.3, with SD of bias of 28.50 (Lower limit -63.18, Upper limit 48.54).


Ultrasound evaluation of the abductor hallucis muscle: Reliability study.

Cameron AF, Rome K, Hing WA - J Foot Ankle Res (2008)

95% Limits of agreement for the measurement of dorso-planter thickness (mm).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2565658&req=5

Figure 5: 95% Limits of agreement for the measurement of dorso-planter thickness (mm).
Mentions: Figure 5 illustrates the Bland & Altman plot between Session 1 and Session 2 for AbdH dorso-plantar thickness, displaying a 95% limits of agreement, bias of -0.024, with SD of bias of 0.35 (Lower limit -0.67, Upper limit 0.72). Figure 6 illustrates the Bland & Altman plot between Session 1 and Session 2 for AbdH cross-sectional area, with a 95% limits of agreement, bias of -7.3, with SD of bias of 28.50 (Lower limit -63.18, Upper limit 48.54).

Bottom Line: Interclass correlation coefficients (ICC) with 95% confidence intervals (CI) were used to calculate both within and between session intra-tester reliability.The within-session reliability results demonstrated for dorso-plantar thickness an ICC of 0.97 (95% CI: 0.99-0.99); medio-lateral width an ICC: of 0.97 (95% CI: 0.92-0.97) and cross-sectional area an ICC of 0.98 (95% CI: 0.98-0.99).Between-session reliability results demonstrated for dorso-plantar thickness an ICC of 0.97 (95% CI: 0.95 to 0.98); medio-lateral width an ICC of 0.94 (95% CI 0.90 to 0.96) and for cross-sectional area an ICC of 0.79 (95% CI 0.65 to 0.88).

View Article: PubMed Central - HTML - PubMed

Affiliation: AUT University, School of Rehabilitation & Occupation Studies, Health & Rehabilitation Research Centre, Private Bag 92006, Auckland, 1142, New Zealand. wayne.hing@aut.ac.nz.

ABSTRACT

Background: The Abductor hallucis muscle (AbdH) plays an integral role during gait and is often affected in pathological foot conditions. The aim of this study was to evaluate the within and between-session intra-tester reliability using diagnostic ultrasound of the dorso-plantar thickness, medio-lateral width and cross-sectional area, of the AbdH in asymptomatic adults.

Methods: The AbdH muscles of thirty asymptomatic subjects were imaged and then measured using a Philips HD11 Ultrasound machine. Interclass correlation coefficients (ICC) with 95% confidence intervals (CI) were used to calculate both within and between session intra-tester reliability.

Results: The within-session reliability results demonstrated for dorso-plantar thickness an ICC of 0.97 (95% CI: 0.99-0.99); medio-lateral width an ICC: of 0.97 (95% CI: 0.92-0.97) and cross-sectional area an ICC of 0.98 (95% CI: 0.98-0.99). Between-session reliability results demonstrated for dorso-plantar thickness an ICC of 0.97 (95% CI: 0.95 to 0.98); medio-lateral width an ICC of 0.94 (95% CI 0.90 to 0.96) and for cross-sectional area an ICC of 0.79 (95% CI 0.65 to 0.88).

Conclusion: Diagnostic ultrasound has the potential to be a reliable tool for evaluating the AbdH muscle in asymptomatic subjects. Subsequent studies may be conducted to provide a better understanding of the AbdH function in foot and ankle pathologies.

No MeSH data available.


Related in: MedlinePlus