research-article

Mild anatomical leg length discrepancy and musculoskeletal pathomechanics

Authors:

Chien-Hung Chen,

Liang-Wey Chang,

Chu-Sheng HsiaoAuthors Info & Claims

i-CREATe '13: Proceedings of the 7th International Convention on Rehabilitation Engineering and Assistive Technology

Article No.: 10, Pages 1 - 4

Published: 29 August 2013 Publication History

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Abstract

Objective

The aim of this research is to study the musculoskeletal pathomechanics of anatomical leg length discrepancy (LLD) in relation to pelvic torsion and piriformis muscle malfunction.

Design

Prospective experiment, paired t-test.

Setting

Rehabilitation Engineering Research Center at National Taiwan University with instrumented gait laboratory.

Participants

Young mild LLD subjects without musculoskeletal disease

Main outcome measures

LLD, the pelvic inclinometer output P_t, the ROM of hip adduction ROM_add and internal rotation ROM_int, the lateral directed ground reaction force I_f, and the internally rotated vertical moment I_m.

Results

All the parameters had significant different from the longer limb to the shorter limb. P_t were negative for the shorter leg but positive for the counterlimb, ROM_add, and ROM_int of the shorter limb were smaller than of the longer limb. I_f and I_m of the shorter limb were larger than of the longer limb. All the parameter was correlated to the LLD except ΔI_f.

Conclusion

Even mild LLD could lead pelvic torsion, which might cause the piriformis muscle tightness and limit the static ROM of hip of the shorter limb; in addition, affect the gait with lateral direction ground reaction force and vertical moment.

References

[1]

Subotnick SI. Limb length discrepancies of the lower extremity (the short leg syndrome). J Orthop Sports Phys Ther 1981;3:11--5

Google Scholar

[2]

McCaw, S. Bates, B. T. Biomechanical implications of mild leg length inequality. British Journal of Sports Medicine 1991;25(1):10--13.

Google Scholar

[3]

Krawiec CJ, Denegar CR, Hertel J, Salvaterra GF, Buckley WE. Static innominate asymmetry and leg length discrepancy in asymptomatic collegiate athletes. Man Ther 2003;8(4):207--13.

Google Scholar

[4]

Schamberger W: The Malalignment Syndrome Implications for Medicine and Sport. New York, Churchill Livingstone, 2002

Google Scholar

[5]

Porterfield JA: The sacroiliac joint, chapter 23, in Gould JA, Davies GJ (eds): Orthopedic and Sports Physical Therapy, vol II. St.Louis, C. V. Mosby, 1985, p 550--580.

Google Scholar

[6]

Jeffrey Gross, Joseph Fetto, Elaine Rosen. Musculoskeletal Examination 3rd Edition. 2009.

Google Scholar

[7]

Pamela M. Barton. Piriformis syndrome: a rational approach to management. Pain 1991; 47:345--352.

Google Scholar

[8]

Dale Schuit, Marlene Adrian and Peter Pidcoe. Effect of Heel Lifts on Ground Reaction Force Patterns in Subjects with Structural Leg-Length Discrepancies. Physical Therapy 1989;69(8):663--670.

Google Scholar

Index Terms

Mild anatomical leg length discrepancy and musculoskeletal pathomechanics
1. Applied computing
  1. Life and medical sciences
2. Social and professional topics
  1. Professional topics
    1. Computing profession
      1. Assistive technologies
  2. User characteristics
    1. People with disabilities

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Information & Contributors

Information

Published In

i-CREATe '13: Proceedings of the 7th International Convention on Rehabilitation Engineering and Assistive Technology

August 2013

308 pages

General Chairs:
Kil-sung Oh
Hanshin University and Korea Assistive Technology Service Association (KATSA) South Korea
,
Pairash Thajchayapong
National Science and Technology Development Agency (NSTDA), Thailand and Ministry of Science and Technology, Thailand
,
Wei Tech Ang
Nanyang Technological University, Singapore

Publisher

Singapore Therapeutic, Assistive & Rehabilitative Technologies (START) Centre

Midview City, Singapore

Publication History

Published: 29 August 2013

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iCREATe '13

iCREATe '13: 7th Rehabilitation Engineering & Assistive Technology

August 29 - 31, 2013

Gyeonggi-do, South Korea

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Index Terms

Recommendations

mobiLLD: Exploring the Detection of Leg Length Discrepancy and Altering Gait with Mobile Smart Insoles

Dynamic leg length measurement is a valid method for detecting anatomic leg length discrepancy

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