Annals of Rehabilitation Medicine

"Muscle weakness"

Original Article

Orthosis & Prosthesis

Correlation of Femoral Muscle Volume Using Three-Dimensional Modeling and Locomotor Function After Unilateral Trans-femoral Amputation: Dong Hyuk Yun, Il-Young Jung, Chang Won Moon, Kang Hee Cho; Ann Rehabil Med 2022;46(6):303-311. Published online December 31, 2022; DOI: https://doi.org/10.5535/arm.22110

Objective
To evaluate the relationship between femoral muscle volume (FMV) and physiological outcomes after trans-femoral amputations (TFAs) affecting overall locomotor function in patients.
Methods
Seven individuals who underwent TFA and had been using a prosthesis participated in this cross-sectional study. Gait and balance were assessed using clinical tests, such as 10-m walk test, 6-minute walk test, Berg Balance Scale, and automatic balance system. Respiratory gas analysis was performed to check oxygen consumption rate. Five participants were evaluated for bilateral FMV by MR imaging and FMV was reconstructed using three-dimentional remodeling.
Results
In five participants, significant differences were found between the non-involved and involved sides in femur length, total FMV, and functional muscle volume (all p<0.01) in all groups except for the hip adductor volume. The %mean difference between the non-involved and involved sides was 30% for femur length, 52.55% for hip flexor volume, 26.55% for hip adductor volume, 51.86% for hip extensor volume, and 60.21% for knee extensor volume. The hip flexor volume to hip extensor volume ratio in the involved limb and oxygen consumption rate during comfortable gait were negatively correlated (r=-0.96, p=0.04).
Conclusion
In individuals who underwent unilateral TFA, hip girdle muscle imbalance in the involved limbs may be associated with oxygen consumption rate while using a prosthesis.

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Case Report

Leg Weakness Caused by Bilateral Piriformis Syndrome: A Case Report: Hee Bong Moon, Ki Yeun Nam, Bum Sun Kwon, Jin Woo Park, Gi Hyeong Ryu, Ho Jun Lee, Chang Jae Kim; Ann Rehabil Med 2015;39(6):1042-1046. Published online December 29, 2015; DOI: https://doi.org/10.5535/arm.2015.39.6.1042

Abstract
PDF

Piriformis syndrome (PS) is an uncommon neuromuscular disorder caused by the piriformis muscle (PM) compressing the sciatic nerve (SN). The main symptom of PS is sciatica, which worsens with certain triggering conditions. Because the pathophysiology is poorly understood, there are no definite diagnostic and therapeutic choices for PS. This case report presents a young woman who mainly complained of bilateral leg weakness. Electromyography revealed bilateral sciatic neuropathy and magnetic resonance imaging confirmed structural lesions causing entrapment of the bilateral SNs. After a laborious diagnosis of bilateral PS, she underwent PM releasing surgery. Few PS cases present with bilateral symptoms and leg weakness. Therefore, in such cases, a high level of suspicion is necessary for accurate and prompt diagnosis and treatment.

Citations

Citations to this article as recorded by

Macroscopic observations of muscular bundles of accessory iliopsoas muscle as the cause of femoral nerve compression
Fuat Unat, Suzan Sirinturk, Pınar Cagimni, Yelda Pinar, Figen Govsa, Gkionoul Nteli Chatzioglou
Journal of Orthopaedics.2019; 16(1): 64. CrossRef
Ultrasound appears to be a reliable technique for the diagnosis of piriformis syndrome
Wenhua Zhang, Fangqiong Luo, Hongjun Sun, Hongyu Ding
Muscle & Nerve.2019; 59(4): 411. CrossRef

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Original Article

Trunk Muscles Strength as a Risk Factor for Nonspecific Low Back Pain: A Pilot Study: Kang Hee Cho, Jae Won Beom, Tae Sung Lee, Jun Ho Lim, Tae Heon Lee, Ji Hyun Yuk; Ann Rehabil Med 2014;38(2):234-240. Published online April 29, 2014; DOI: https://doi.org/10.5535/arm.2014.38.2.234

Abstract
PDF

Objective

To investigate the effects of asymptomatic back muscle weakness and spinal deformity on low back pain (LBP).

Methods

Sixty healthy subjects without LBP participated in this study. Radiography and an isokinetic/isometric dynamometer were used to respectively measure spinal scoliosis/lordosis and the strength of the trunk flexors/extensors. After 2 years, 48 subjects visited the hospital again and LBP episodes, its severity and the Korean version of the Oswestry Disability Index were assessed. Differences between the group with LBP and the group without LBP were evaluated and the association with LBP incidence and severity was determined.

Results

Sex, age, and trunk strength were significantly different in both group. Sex and age were significantly positive associated with LBP incidence. The isometric trunk flexor and extensor strength, maximum isokinetic trunk flexor and extensor strength were significantly and negatively associated with the LBP severity. The maximum isokinetic trunk extensor and maximum isometric trunk extensor strength was significantly negative associated with the LBP incidence.

Conclusion

LBP incidence is associated with isometric and isokinetic trunk extensor weakness, whereas LBP severity is associated with age, sex, isokinetic trunk extensor and flexor weakness, isometric trunk extensor and flexor weakness.

Citations

Citations to this article as recorded by

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