scholarly journals Association between hip muscle cross-sectional area and hip pain and function in individuals with mild-to-moderate hip osteoarthritis: a cross-sectional study.

2020 ◽  
Author(s):  
Waruna Peiris ◽  
Flavia M Cicuttini ◽  
Maria Constantinou ◽  
Abbas Yaqobi ◽  
Sultana Monira Hussain ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Regression Coefficient ◽  
Hip Osteoarthritis ◽  
Cross Sectional Area ◽  
Hip Pain ◽  
Sectional Area ◽  
Cross Sectional ◽  
Hip Muscle ◽  
And Function

Abstract Objective: To examine the associations between hip muscle cross-sectional area and hip pain and function in community-based individuals with mild-to-moderate hip osteoarthritis. Methods: This study included 27 participants with mild-to-moderate hip osteoarthritis. Cross-sectional area of hip muscles, including psoas major, rectus femoris, gluteus maximus, gluteus medius and minimus, adductor longus and magnus, obturator internus, and obturator externus, were measured from magnetic resonance images. Hip pain and function were evaluated using the Hip Disability and Osteoarthritis Outcome Score (HOOS). Results: After adjusting for age and gender, greater cross-sectional area of adductor longus and magnus was associated with a higher HOOS score in quality of life (regression coefficient 1.4, 95% confidence interval (CI) 0.2-2.7, p=0.02), activity of daily living (regression coefficient 1.3, 95% CI 0.1-2.6, p=0.04) and sport and recreation function (regression coefficient 1.6, 95% CI 0.1-3.0, p=0.04). Greater cross-sectional area of psoas major was associated with a higher quality of life score (regression coefficient 3.6, 95% CI -0.5 to 7.7, p=0.08). The cross-sectional area of hip muscles was not significantly associated with HOOS pain or symptom score. Conclusion: Greater cross-sectional area of hip adductors was associated with better function and quality of life in individuals with mild-to-moderate hip osteoarthritis. Greater cross-sectional area of hip flexors might be associated with better quality of life. These findings, while need to be confirmed in longitudinal studies, suggest that targeting the hip adductor and flexor muscles may improve function and quality of life in those with mild-to-moderate hip osteoarthritis.

scholarly journals Association between hip muscle cross-sectional area and hip pain and function in individuals with mild-to-moderate hip osteoarthritis: a cross-sectional study

2020 ◽  
Author(s):  
Waruna Peiris ◽  
Flavia M Cicuttini ◽  
Maria Constantinou ◽  
Abbas Yaqobi ◽  
Sultana Monira Hussain ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Regression Coefficient ◽  
Hip Osteoarthritis ◽  
Cross Sectional Area ◽  
Hip Pain ◽  
Sectional Area ◽  
Cross Sectional ◽  
Hip Muscle ◽  
And Function

Abstract Background: To examine the associations between hip muscle cross-sectional area and hip pain and function in community-based individuals with mild-to-moderate hip osteoarthritis. Methods: This study included 27 participants with mild-to-moderate hip osteoarthritis. Cross-sectional area of hip muscles, including psoas major, rectus femoris, gluteus maximus, gluteus medius and minimus, adductor longus and magnus, obturator internus, and obturator externus, were measured from magnetic resonance images. Hip pain and function were evaluated using the Hip Disability and Osteoarthritis Outcome Score (HOOS) categorised into 5 subscales: pain, symptoms, activity of daily living, sport and recreation function, and hip-related quality of life (for each subscale 0 representing extreme problems and 100 representing no problems). Results: Mean age of the 27 participants was 63.2 (SD 7.6) years and 66.7% (n=18) were female. After adjusting for age and gender, greater cross-sectional area of adductor longus and magnus was associated with a higher HOOS score in quality of life (regression coefficient 1.4, 95% confidence interval (CI) 0.2-2.7, p=0.02), activity of daily living (regression coefficient 1.3, 95% CI 0.1-2.6, p=0.04) and sport and recreation function (regression coefficient 1.6, 95% CI 0.1-3.0, p=0.04). There was a trend towards an association between greater cross-sectional area of psoas major and a higher quality of life score (regression coefficient 3.6, 95% CI -0.5 to 7.7, p=0.08). The cross-sectional area of hip muscles was not significantly associated with HOOS pain or symptom score. Conclusion: Greater cross-sectional area of hip adductors was associated with better function and quality of life in individuals with mild-to-moderate hip osteoarthritis. Greater cross-sectional area of hip flexors might be associated with better quality of life. These findings, while need to be confirmed in longitudinal studies, suggest that targeting the hip adductor and flexor muscles may improve function and quality of life in those with mild-to-moderate hip osteoarthritis.

Intranasal cross-sectional area and quality of life changes following endoscopic transsphenoidal skull base surgery

2015 ◽  
Vol 5 (12) ◽  
pp. 1124-1128 ◽  
Author(s):  
Edward D. McCoul ◽  
Amit S. Patel ◽  
Jeffrey C. Bedrosian ◽  
Vijay K. Anand ◽  
Theodore H. Schwartz
Keyword(s):  
Quality Of Life ◽  
Skull Base ◽  
Skull Base Surgery ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Life Changes ◽  
Cross Sectional

Quality of Life and Associated Factors in Latin American Patients Undergoing Total Hip Arthroplasty

2020 ◽  
Vol 22 (6) ◽  
pp. 437-446
Author(s):  
Rodrigo Nunes Santos ◽  
Martha Castro ◽  
Flávio Robert Santana ◽  
Mário Martins Sanches ◽  
Diógenes Pires Serra Filho ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Body Weight ◽  
Latin American ◽  
Associated Factors ◽  
Hip Osteoarthritis ◽  
Cross Sectional Study ◽  
Harris Hip Score ◽  
Cross Sectional ◽  
And Function

Background. The objective of this study was to determine whether individuals with hip osteoarthritis who undergo THA have higher HRQOL scores than those awaiting the procedure; An additional aim was to investigate associated factors exerting an impact on HRQOL. Materials and methods. A cross-sectional study was conducted. Participants were divided into two groups: pre-THA and post-THA. Functional capacity was assessed using the Harris Hip Score, and HRQOL was measured using a validated and adapted version of the WOMAC questionnaire. A multivariate analysis of the WOMAC results was used to identify the main variables associated with HRQOL in both groups. Results. The post-THA group had higher HRQOL scores (100.4 ± 88.5) than the pre-THA group (197.8 ± 54.1). The domains Pain (68.0 ± 19.0 versus 34.7 ± 30.8), Stiffness (61.2 ± 28.9 versus 29.9 ± 33.1), and Phy­sical Act­­vity (68.6 ± 16.1 versus 36.6 ± 30.2) also had higher scores in the post-THA group. Pain was the variable most frequently associated with the increase in post-THA HRQOL scores. Other variables such as occupation, time of diagnosis, joint function, and body weight also had an impact on the HRQOL of both groups. Conclusions. 1. Individuals who had undergone THA showed higher HRQOL scores in all domains when compared to those still awaiting the procedure, and pain reduction was the variable most strongly associated with the improvement in quality of life of those patients. 2. Occupation and mobility were associated with the Stiffness domain of QOL; Occupation also had a bearing on health-related quality of life as a whole. 3. Physical Activity of the WOMAC instrument was associated with time of diagnosis, patient’s body weight, and function as assessed by the HHS.

The Variable Insertional Anatomy of the Abductor Pollicis Longus: Functional Relevance and Relationship to Adjacent Thumb Extensors

Hand ◽  
2021 ◽  
pp. 155894472199973
Author(s):  
Shruthi Deivasigamani ◽  
Ali Azad ◽  
S. Steven Yang
Keyword(s):  
Cross Sectional Area ◽  
Sectional Area ◽  
Abductor Pollicis Brevis ◽  
Thenar Muscle ◽  
Cross Sectional ◽  
Extensor Pollicis Longus ◽  
Abductor Pollicis Longus ◽  
Branching Patterns ◽  
Functional Relevance ◽  
And Function

Background The abductor pollicis longus (APL) is classically described as inserting on the base of the first metacarpal. This study analyzed APL insertional anatomy and quantified the size of various elements of the extensor side of the thumb to determine associations with size and function. Methods Twenty-four formalin-preserved upper limbs were dissected. The insertional anatomy of the APL, extensor pollicis brevis, and extensor pollicis longus were characterized, and the capacity of APL tendon slips to perform palmar abduction of the first digit was quantified based on slip size and insertion. Results The mean number of APL tendon slips observed was 2.3. Abductor pollicis longus insertion sites included the base of the first metacarpal, trapezium, abductor pollicis brevis, and opponens pollicis. Only 4 specimens had a solitary metacarpal slip, while 83% of specimens had insertions onto at least 1 thenar muscle. A total of 62.5% of APL tendons exhibited some form of branching that we categorized into “Y” and “Z” patterns. In assessing palmar abduction capacity, we found that APL tendon slips inserting into the base of the first metacarpal were larger in cross-sectional area than nonmetacarpal slips and reproduced complete palmar abduction of the digit in the absence of nonmetacarpal slips. The abduction capacity of APL tendon slips was not correlated to the cross-sectional area. Conclusions There is significant variability in APL tendon slips, branching patterns, and insertional anatomy. These findings provide further understanding of the function of the APL and its surgical implications.

scholarly journals The influence of muscle pennation angle and cross-sectional area on contact forces in the ankle joint

2016 ◽  
Vol 52 (1) ◽  
pp. 12-23 ◽  
Author(s):  
Ran S Sopher ◽  
Andrew A Amis ◽  
D Ceri Davies ◽  
Jonathan RT Jeffers
Keyword(s):  
Pennation Angle ◽  
Muscle Architecture ◽  
Cross Sectional Area ◽  
Contact Forces ◽  
Sectional Area ◽  
Muscle Forces ◽  
Cross Sectional ◽  
Contact Loads ◽  
The Mean ◽  
And Function

Data about a muscle’s fibre pennation angle and physiological cross-sectional area are used in musculoskeletal modelling to estimate muscle forces, which are used to calculate joint contact forces. For the leg, muscle architecture data are derived from studies that measured pennation angle at the muscle surface, but not deep within it. Musculoskeletal models developed to estimate joint contact loads have usually been based on the mean values of pennation angle and physiological cross-sectional area. Therefore, the first aim of this study was to investigate differences between superficial and deep pennation angles within each muscle acting over the ankle and predict how differences may influence muscle forces calculated in musculoskeletal modelling. The second aim was to investigate how inter-subject variability in physiological cross-sectional area and pennation angle affects calculated ankle contact forces. Eight cadaveric legs were dissected to excise the muscles acting over the ankle. The mean surface and deep pennation angles, fibre length and physiological cross-sectional area were measured. Cluster analysis was applied to group the muscles according to their architectural characteristics. A previously validated OpenSim model was used to estimate ankle muscle forces and contact loads using architecture data from all eight limbs. The mean surface pennation angle for soleus was significantly greater (54%) than the mean deep pennation angle. Cluster analysis revealed three groups of muscles with similar architecture and function: deep plantarflexors and peroneals, superficial plantarflexors and dorsiflexors. Peak ankle contact force was predicted to occur before toe-off, with magnitude greater than five times bodyweight. Inter-specimen variability in contact force was smallest at peak force. These findings will help improve the development of experimental and computational musculoskeletal models by providing data to estimate force based on both surface and deep pennation angles. Inter-subject variability in muscle architecture affected ankle muscle and contact loads only slightly. The link between muscle architecture and function contributes to the understanding of the relationship between muscle structure and function.

A three-microphone acoustic reflection technique using transmitted acoustic waves in the airway

2013 ◽  
Vol 115 (8) ◽  
pp. 1119-1125 ◽  
Author(s):  
Yuki Fujimoto ◽  
Jyongsu Huang ◽  
Toshiharu Fukunaga ◽  
Ryo Kato ◽  
Mari Higashino ◽  
...  
Keyword(s):  
Acoustic Waves ◽  
Cross Sectional Area ◽  
Distance Functions ◽  
Sectional Area ◽  
Wave Tube ◽  
Cross Sectional ◽  
Reflected Waves ◽  
Acoustic Reflection ◽  
Obstructive Sleep ◽  
And Function

The acoustic reflection technique noninvasively measures airway cross-sectional area vs. distance functions and uses a wave tube with a constant cross-sectional area to separate incidental and reflected waves introduced into the mouth or nostril. The accuracy of estimated cross-sectional areas gets worse in the deeper distances due to the nature of marching algorithms, i.e., errors of the estimated areas in the closer distances accumulate to those in the further distances. Here we present a new technique of acoustic reflection from measuring transmitted acoustic waves in the airway with three microphones and without employing a wave tube. Using miniaturized microphones mounted on a catheter, we estimated reflection coefficients among the microphones and separated incidental and reflected waves. A model study showed that the estimated cross-sectional area vs. distance function was coincident with the conventional two-microphone method, and it did not change with altered cross-sectional areas at the microphone position, although the estimated cross-sectional areas are relative values to that at the microphone position. The pharyngeal cross-sectional areas including retropalatal and retroglossal regions and the closing site during sleep was visualized in patients with obstructive sleep apnea. The method can be applicable to larger or smaller bronchi to evaluate the airspace and function in these localized airways.

Pain Catastrophizing Is Independently Associated with Quality of Life in Patients with Severe Hip Osteoarthritis

Pain Medicine ◽  
2018 ◽  
Vol 20 (11) ◽  
pp. 2220-2227 ◽  
Author(s):  
Kazuhiro Hayashi ◽  
Takkan Morishima ◽  
Tatsunori Ikemoto ◽  
Hirofumi Miyagawa ◽  
Takuya Okamoto ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Pain Intensity ◽  
Gait Speed ◽  
Pain Catastrophizing ◽  
Hip Osteoarthritis ◽  
Cross Sectional ◽  
Japanese Orthopedic Association ◽  
Affected Side ◽  
Tertiary Center

AbstractObjective. Pain catastrophizing is an important pain-related variable, but its impact on patients with osteoarthritis is uncertain. The aim of the current study was to determine whether pain catastrophizing was independently associated with quality of life (QOL) in patients with osteoarthritis of the hip. Design. Cross-sectional study conducted between June 2017 and February 2018. Setting. Tertiary center. Subjects. Seventy consecutively enrolled patients with severe hip osteoarthritis who had experienced pain for six or more months that limited daily function, and who were scheduled for primary unilateral total hip arthroplasty. Methods. QOL was measured using the EuroQOL-5 Dimensions questionnaire, the Japanese Orthopedic Association Hip Disease Evaluation Questionnaire, and a dissatisfaction visual analog scale. Covariates included pain intensity, pain catastrophizing, range of hip motion, and gait speed. The variables were subjected to multivariate analysis with each QOL scale. Results. The median age was 68 years, and the median Pain Catastrophizing Scale score was 26. In multiple regression analysis, pain catastrophizing, pain intensity in both hips, pain intensity on the affected side, hip flexion on the affected side, and gait speed were independently correlated with QOL. Conclusions. Pain catastrophizing was independently associated with each QOL scale in preoperative patients with severe hip osteoarthritis. Pain catastrophizing had either the strongest or second strongest effect on QOL, followed by pain intensity.

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