Reproducibility of a simplified Q-angle measurement technique

2010 ◽  
Vol 21 (2) ◽  
pp. 158-164 ◽  
Author(s):  
Jason D. Peeler ◽  
Jeff Leiter ◽  
Judy E. Anderson
Keyword(s):  
Measurement Technique ◽  
Angle Measurement ◽  
Q Angle

An evaluation of a new side-wall-angle measurement technique for mask patterns by CD-SEM

2009 ◽  
Author(s):  
Hidemitsu Hakii ◽  
Isao Yonekura ◽  
Masashi Kawashita ◽  
Yosuke Kojima ◽  
Yoshifumi Sakamoto ◽  
...  
Keyword(s):  
Measurement Technique ◽  
Side Wall ◽  
Angle Measurement ◽  
Wall Angle

Optical alignment and tilt-angle measurement technique based on Lloyd’s mirror arrangement

1992 ◽  
Vol 17 (14) ◽  
pp. 1024 ◽  
Author(s):  
Huihua Kenny Chiang ◽  
Richard P. Kenan ◽  
Nile F. Hartman ◽  
Christopher J. Summers
Keyword(s):  
Measurement Technique ◽  
Tilt Angle ◽  
Angle Measurement ◽  
Optical Alignment

scholarly journals Measurement the “Q” angle through the application of direct method and indirect method

2016 ◽  
Vol 33 (03) ◽  
pp. 168-170
Author(s):  
C. Vanzeli ◽  
A. Reis ◽  
A. Pereira ◽  
M. Tavares ◽  
V. Fazan
Keyword(s):  
Direct Method ◽  
Objective Measure ◽  
Angle Measurement ◽  
Global Alignment ◽  
Ordinary People ◽  
Lateral Deviation ◽  
Indirect Methods ◽  
Q Angle ◽  
Direct And Indirect Methods ◽  
Physiotherapy Clinic

Abstract Introduction: The “Q” angle is used to measure global alignment of the kneecap, representing the kneecap normal alignment. The average of 15 degrees in ordinary people is accepted as “Q” angle value, 14 degrees for men and 17 degrees for women. Anatomic changes caused by variants produces converging kneecaps or lateral deviation of the tibial tuberosity, changing the “Q” angle value and causing pathologies. Objective: Measure the “Q” angle of asymptomatic people, comparing obtained results. Materials and Methods: The “Q” angle measurement was taken from 12 subjects (6 males and 6 females), with ages from 18 to 35, at the Physiotherapy Clinic of José do Rosario Vellano College, in Alfenas, MG. Results: After evaluating the 12 subjects following ANOVA test, using p < 0.05, no significant statistic difference could be observed among examiners, gender or right and left limbs, considering both direct and indirect methods. Conclusion: Data obtained in this research allows us suggest that there is no difference between “Q” angle values among genders, direct and indirect methods and lateral symmetry.

scholarly journals Evaluation of clinical and radiographic measures and reliability of the quadriceps angle measurement in elderly women with knee osteoarthritis

2014 ◽  
Vol 27 (4) ◽  
pp. 565-572
Author(s):  
Mateus Ramos Amorim ◽  
Sueli Ferreira da Fonseca ◽  
Arthur Nascimento Arrieiro ◽  
Wellington Fabiano Gomes ◽  
Ana Cristina Rodrigues Lacerda
Keyword(s):  
Correlation Analysis ◽  
Knee Osteoarthritis ◽  
Elderly Women ◽  
The Elderly ◽  
Angle Measurement ◽  
Radiographic Examination ◽  
Radiographic Measurements ◽  
Q Angle ◽  
Clinical Measurements ◽  
The Relationship

Introduction Knees osteoarthritis (OA) is a complex degenerative disease with intra-articular changes affecting the amplitude of the quadriceps angle (Q). To measure this variable, it is necessary to use reliable protocols aiming at methodological reproducibility. The objective was to evaluate the intra-examiner and inter-examiner reliability of clinical and radiographic measures of the Q angle and to investigate the relationship between the degree of OA and the magnitude of this angle in the elderly. Materials and methods 23 volunteers had the Q angle measured by two evaluators at 48-h interval. Clinical measurements were collected by using the universal goniometer in the same position adopted in the radiographic examination. Results The intra-examiner reliability was good (0.722 to 0.763) for radiographic measurements and low (0.518 to 0.574) for clinical assessment, while inter-examiner reliability was moderate (0.634) for radiographic measurements and low (0.499) to the clinics. The correlation analysis between the radiographic values with the OA classification showed no correlation between them (p = 0.824 and r = -0.024). Conclusion Clinically, it is suggested that the radiographic examination is preferable to evaluate the Q angle of elderly women with knee osteoarthritis. Moreover, the magnitude of this angle did not correlate with the degree of impairment of OA in this population.

Association Between Anatomical Features and Anterior Knee Pain in a “Fit” Service Population

2004 ◽  
Vol 90 (3) ◽  
pp. 125-134
Author(s):  
C. J. Hand ◽  
J. W. Spalding
Keyword(s):  
Knee Pain ◽  
Anterior Knee Pain ◽  
Angle Measurement ◽  
Poor Correlation ◽  
Compression Tests ◽  
Anatomical Variant ◽  
Stress Syndrome ◽  
Normal Ranges ◽  
Q Angle ◽  
Anterior Knee

AbstractAnterior knee pain and overuse sports type injuries have been associated with anatomical factors. Specific diagnosis in knee pain is difficult, most service patients are grouped together as “Patello-Femoral Stress Syndrome”. Knee pain incidence within the service population is unknown, but thought to be greater than those presenting to General Practitioners. 293 active duty service men (100 Army and 193 Royal Navy) were interviewed and examined in relation to their knees. 138 measurements were made on each subject.118 admitted to knee problems. Six had specific diagnoses, ranging from patellar tendonitis to ACL deficiency (with marked anterior instability). The remaining 112 individuals formed the study group and examination findings were compared with the 175 without Patello-Femoral Stress Syndrome. The results have been analysed to determine normal ranges and predictors of knee pain.Age, years in the military and results of patello-femoral compression tests were consistently significantly different between the groups.This survey provides useful information on normal values at examination. Q angle measurement was a poor predictor of knee pain. There was no clinically detectable anatomical variant that correlated with the Patello-Femoral Stress Syndrome. There was poor correlation between Tegner activity score and the perceived limitation on sport or work, as assessed on a visual analogue scale.

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