Hip Abductor Power and Velocity

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Marcel B. Lanza ◽  
Jin H. Kang ◽  
Hayley Karl ◽  
Jacob Myers ◽  
Erin Ryan ◽  
...  
Keyword(s):  
Hip Abductor

Arthroscopic Repair of the Hip Abductor Musculotendinous Unit: The Effect of Microfracture on Clinical Outcomes

2021 ◽  
pp. 036354652199967
Author(s):  
Baris Kocaoglu ◽  
Ahmet Emre Paksoy ◽  
Simone Cerciello ◽  
Matthieu Ollivier ◽  
Romain Seil ◽  
...  
Keyword(s):  
Clinical Outcomes ◽  
Surgical Repair ◽  
Gluteus Medius ◽  
Arthroscopic Repair ◽  
Harris Hip Score ◽  
Level Of Evidence ◽  
Outcome Score ◽  
Significant Difference ◽  
Hip Abductor ◽  
Tendon Tears

Background: Endoscopic surgical repair has become a common procedure for treating patients with hip abductor tendon tears. Considering that retear rates are high after the repair of gluteus medius and minimus tendons, exploring alternative strategies to enhance structural healing is important. Purpose/Hypothesis: The purpose of this study was to evaluate the effect of adding microfracture to single-row repair (SR) on outcomes after the surgical repair of gluteus medius and minimus tendons and compare with SR and double-row repair (DR) without microfracture. We hypothesized that microfracture of the trochanteric footprint with SR would lead to superior clinical outcomes and lower clinically evident retear rates compared with SR and DR without the addition of microfracture. Study Design: Cohort study; Level of evidence, 3. Methods: A total of 50 patients who underwent primary arthroscopic repair of hip gluteus medius and minimus tendon tears were investigated. Patients were divided into 3 groups: DR, 16 patients; SR, 14 patients; and SR with microfracture (SRM), 20 patients. Patients were evaluated with a visual analog scale (VAS) for pain as well as the Hip Outcome Score–Activities of Daily Living (HOS-ADL), Hip Outcome Score–Sport Specific (HOS-SS), and modified Harris Hip Score (mHHS) both preoperatively and at a minimum 2-year follow-up (mean, 30 months). Results: Among the SR, SRM, and DR groups, the greatest decrease in VAS scores and increase in mHHS, HOS-ADL, and HOS-SS scores were seen in the SRM group, and all the differences were significant ( P < .001 to P = .006). The abductor tendon retear rates were 31.3%, 35.7%, and 15.0% in the DR, SR, and SRM groups, respectively. Retear rates were lower in the SRM group compared with the SR and DR groups ( P = .042); however, there was no significant difference between the SR and DR groups ( P = .32) in terms of retear rates. Conclusion: Endoscopic SR with microfracture was a safe, practical, and effective technique and had the potential advantage of enhancing biological healing at the footprint. The addition of microfracturing the trochanteric footprint significantly lowered the retear rate and provided better functional outcomes than SR and DR without microfracture.

scholarly journals Is Hip Muscle Strength Associated with Dynamic Knee Valgus in a Healthy Adult Population? A Systematic Review

2021 ◽  
Vol 18 (14) ◽  
pp. 7669
Author(s):  
Ali Mohammed Alzahrani ◽  
Msaad Alzhrani ◽  
Saeed Nasser Alshahrani ◽  
Wael Alghamdi ◽  
Mazen Alqahtani ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Adult Population ◽  
Knee Valgus ◽  
Journal Articles ◽  
Hip Muscle ◽  
Hip Abductor ◽  
Hip Muscles ◽  
Analysis System ◽  
The Relationship ◽  
External Rotator

This study aimed to systematically review research investigating the association between hip muscle strength and dynamic knee valgus (DKV). Four databases (MEDLINE, PubMed, CINAHL, and SPORTDiscus) were searched for journal articles published from inception to October 2020. Seven studies investigating the association between hip muscle strength and DKV using a two-dimensional motion analysis system in healthy adults were included. The relationship between hip abductor muscle strength and DKV was negatively correlated in two studies, positively correlated in two studies, and not correlated in three studies. The DKV was associated with reduced hip extensor muscle strength in two studies and reduced hip external rotator muscle strength in two studies, while no correlation was found in three and five studies for each muscle group, respectively. The relationship between hip muscle strength, including abductors, extensors, and external rotators and DKV is conflicting. Considering the current literature limitations and variable methodological approaches used among studies, the clinical relevance of such findings should be interpreted cautiously. Therefore, future studies are recommended to measure the eccentric strength of hip muscles, resembling muscular movement during landing. Furthermore, high-demand and sufficiently challenging functional tasks revealing lower limb kinematic differences, such as cutting and jumping tasks, are recommended for measuring the DKV.

scholarly journals Reliability and validity of an adapted hip abductor strength measure as a potential new fall risk assessment for older persons: a study protocol

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Simone Chantal Gafner ◽  
Caroline Henrice Germaine Bastiaenen ◽  
Emmanuel Biver ◽  
Serge Ferrari ◽  
Lara Allet
Keyword(s):  
Fall Risk ◽  
Reliability And Validity ◽  
Criterion Validity ◽  
Risk Assessments ◽  
Index Test ◽  
Timed Up And Go ◽  
External Criterion ◽  
Closed Chain ◽  
Hip Abductor ◽  
Abductor Strength

Abstract Background Persons aged ≥ 65 years are currently the world’s fastest growing age group. An important complication of age is the increasing risk of falls. Falls have multifactorial etiology and modifiable risk factors open for interventions in prevention and rehabilitation, are of high interest. In this context, strong hip abductors seem to be important to prevent falls. A newly adapted measurement device to measure hip abductor strength (HAS) in a closed chain position was developed. We aim to assess feasibility, intra- and inter-tester reliability and construct and criterion validity of the new measure. Methods In two subsequent parts a feasibility, reliability and validity study with an adapted measurement instrument for the assessment of HAS (index test) in a closed chain position in persons aged ≥ 65 years will be conducted. Part I investigates feasibility of the measure in clinical settings as well as reliability of the new HAS test (n = 26). Part II evaluates construct and criterion validity (n = 169). Construct validity will be assessed cross-sectional, criterion validity by comparison with prospectively followed up fall history for 12 months (external criterion) and other functional fall risk assessments (Short Physical Performance Battery, Timed Up and Go test, usual gait speed and hand grip strength). Discussion Results of feasibility, will give insight in its applicability in daily clinical life and clinimetric properties will show if measurements of HAS in a closed chain position should be encouraged to include in fall risk assessments in older adults.

scholarly journals The Role of Hip Abductor Strength in Identifying Older Persons at Risk of Falls: A Diagnostic Accuracy Study

2020 ◽  
Vol Volume 15 ◽  
pp. 645-654 ◽  
Author(s):  
Simone Chantal Gafner ◽  
Caroline Henrice Germaine Bastiaenen ◽  
Serge Ferrari ◽  
Gabriel Gold ◽  
Andrea Trombetti ◽  
...  
Keyword(s):  
At Risk ◽  
Diagnostic Accuracy ◽  
Older Persons ◽  
Diagnostic Accuracy Study ◽  
Risk Of Falls ◽  
Hip Abductor ◽  
Accuracy Study ◽  
Abductor Strength

Intra- and inter-rater reliability of the rate of force development of hip abductor muscles measured by hand-held dynamometer

2017 ◽  
Vol 22 (1) ◽  
pp. 19-24 ◽  
Author(s):  
Kazuya Takeda ◽  
Shigeo Tanabe ◽  
Soichiro Koyama ◽  
Tomoko Nagai ◽  
Hiroaki Sakurai ◽  
...  
Keyword(s):  
Rate Of Force Development ◽  
Rater Reliability ◽  
Force Development ◽  
Hip Abductor

scholarly journals Defining Minimal Clinically Important Difference After Open Hip Abductor Repair

2021 ◽  
Vol 9 (4) ◽  
pp. 232596712110077
Author(s):  
Tyler J. Uppstrom ◽  
Spencer W. Sullivan ◽  
Joost A. Burger ◽  
Anil S. Ranawat ◽  
Bryan T. Kelly ◽  
...  
Keyword(s):  
Surgical Treatment ◽  
Outcome Measures ◽  
Minimal Clinically Important Difference ◽  
Open Repair ◽  
Gluteus Medius ◽  
Patient Characteristics ◽  
Harris Hip Score ◽  
Younger Patients ◽  
Clinically Important Difference ◽  
Hip Abductor

Background: Open repair for gluteus medius and minimus tears is a common surgical treatment for patients with lateral hip pain associated with abductor tears; however, clinically meaningful outcomes have not been described after open surgical treatment. Purpose: To define the minimal clinically important difference (MCID) in patient-reported outcome measures (PROMs) in patients undergoing open gluteus medius or minimus repair, and to identify preoperative patient characteristics predictive of achieving MCID postoperatively. Study Design: Case series; Level of evidence, 4. Methods: A retrospective review of prospectively collected data from a consecutive series of patients undergoing open abductor repair between July 2010 and April 2019 was conducted. Perioperative patient data collected included patient characteristics and preoperative and postoperative modified Harris Hip Score (mHHS) and International Hip Outcome Tool (iHOT-33) score. Paired t tests were utilized to compare preoperative and postoperative PROMs and MCID was calculated for both PROMs. Multivariate logistical regression analysis was used to assess the association between preoperative variables and the likelihood for achieving MCID. Results: A total of 47 patients were included in the study. The majority of patients were female (78.7%), with an average age of 63 ± 10.7 years. The average follow-up for both the mHHS and the iHOT-33 surveys was 37.8 ± 27.9 months (range, 10-102 months). Patients demonstrated statistically significant improvements on the mHHS and iHOT-33 postoperatively ( P < .001 for both). The MCIDs of mHHS and iHOT-33 were calculated to be 9.9 and 14.3, respectively. Overall, 82.9% of patients achieved MCID for mHHS and 84.1% of patients achieved MCID for iHOT-33 postoperatively. Multivariate logistical analysis demonstrated younger patients were less likely to achieve MCID for both outcome measures. Four patients (8.5%) suffered postoperative complications after open repair. Conclusion: This study defined MCID for mHHS and iHOT-33 for patients undergoing open repair of hip abductor tears, with a large percentage of patients (>80%) achieving meaningful outcomes for both outcome measures. There was a low complication rate. Younger patients were less likely to achieve MCID compared with older patients.

A 1-Year Exercise Program for Older Women: Effects on Falls, Injuries, and Physical Performance

1994 ◽  
Vol 2 (2) ◽  
pp. 127-142 ◽  
Author(s):  
Priscilla Gilliam MacRae ◽  
Michael E. Feltner ◽  
Sibylle Reinsch
Keyword(s):  
Older Women ◽  
Exercise Program ◽  
Community Dwelling ◽  
Medical Attention ◽  
Knee Extensors ◽  
Post Intervention ◽  
Hip Abductor ◽  
Gait Abnormalities ◽  
Risk Factors For Falls ◽  
Low Intensity Exercise

This study examined the effects of a 1-year low intensity exercise program in community dwelling older women on falls, injuries, and risk factors for falls such as poor balance, muscular weakness, and gait abnormalities. Eighty older women were assigned to an exercise (Ex,n= 42) or attention control (Co,n= 38) group. During the 1-year study, 36% of the Ex group experienced a fall compared to 45% of the Co group (χ2= 0.22,p≥ 0.05). None of the 10 fallers in the Ex group suffered an injury that required medical attention, compared with 3 of the 14 fallers (21%) in the Co group. Further analyses indicated that the Co group declined significantly in isometric strength of the knee extensors and ankle dorsiflexors while the Ex group did not change significantly across the 1-year study. On measures of hip abductor strength, balance, and gait, the groups were not significantly different from each other pre- to post intervention.

Vastus Lateralis Transfer for Severe Hip Abductor Deficiency: A Salvage Procedure

2014 ◽  
Vol 24 (2) ◽  
pp. 180-186 ◽  
Author(s):  
Kemble Wang ◽  
Stacey Cole ◽  
Dean C. White ◽  
Michael S. Armstrong
Keyword(s):  
Vastus Lateralis ◽  
Salvage Procedure ◽  
Hip Abductor
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