Bilateral Q angle asymmetry and anterior knee pain syndrome

Livingston, Lori A.; Mandigo, James L.

doi:10.1016/s0268-0033(98)00045-x

Cited by 68 publications

(53 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…All measures were collected using previously established methods. [22][23][24][25][26][27][28] For testing, participants were clothed in shorts that allowed exposure of all bony landmarks needed for testing and were barefoot. For all bony landmarks, the central point was palpated and marked with a fine-point marker.…”

Section: Lower Extremity Alignment Data Collectionmentioning

confidence: 99%

Sex Differences and Representative Values for 6 Lower Extremity Alignment Measures

McKeon

Hertel

2009

Journal of Athletic Training

View full text Add to dashboard Cite

Context: A discrepancy in anterior cruciate ligament (ACL) injury rates exists between men and women. Structural differences between the sexes often are implicated as a factor in this discrepancy. Researchers anecdotally assume that men and women tend to display different normative values for certain lower extremity alignments, but published information about these values is limited.Objective: To evaluate the effect of sex on 6 measures of lower extremity alignment and to report representative values of these measures from a sample of active adults and elite athletes.Design: Descriptive cohort design. Setting: University research laboratory. Patients or Other Participants: A total of 118 healthy adults (57 men: age 5 21.1 6 3.0 years, height 5 179.1 6 7.3 cm, mass 5 79.8 6 13.0 kg; 61 women: age 5 20.0 6 1.6 years, height 5 167.7 6 6.7 cm, mass 5 62.7 6 5.5 kg) volunteered.Main Outcome Measure(s): Six common measures of lower extremity posture (navicular drop, tibial varum, quadriceps angle, genu recurvatum, anterior pelvic tilt, femoral anteversion) were collected using established methods. One measurement was taken for each participant for each lower extremity alignment. We measured the right lower extremity only.Results: Compared with men, women demonstrated larger quadriceps angles, more genu recurvatum, greater anterior pelvic tilt, and more femoral anteversion.Conclusions: We observed differences between men and women for 4 of the 6 lower extremity alignments that we measured. Future researchers should focus on identifying how sex and skeletal alignment affect biomechanical performance of functional tasks and what these differences specifically mean regarding the discrepancy in anterior cruciate ligament injury rates between the sexes.Key Words: malalignment, femoral anteversion, genu recurvatum, anterior pelvic tilt, quadriceps angle Key Points N Women demonstrated larger quadriceps angles, more genu recurvatum, greater anterior pelvic tilt, and more femoral anteversion compared with men.N We found no sex difference for navicular drop or tibial varum. N Because the sex differences for 4 measures of alignment were small, we cannot decisively conclude that alignment contributes to lower extremity injury.N Further investigation is needed to determine how lower extremity alignment affects the rate of lower extremity injuries.

show abstract

Section: Lower Extremity Alignment Data Collectionmentioning

confidence: 99%

Sex Differences and Representative Values for 6 Lower Extremity Alignment Measures

McKeon

Hertel

2009

Journal of Athletic Training

View full text Add to dashboard Cite

show abstract

“…Reportedly a significant difference in Q angle between sides has led to a statement that symmetry in right versus left lower limb Q angle measures may be erroneous. And this is why both knees of PFPS patients with bilateral knee pain were enrolled into the current study instead of one person one knee 7,22 Additionally, in our series, there was a significant difference in Q angle between sexes in our unopened observations (p< 0.01) This is why the male were excluded from the current study. As thus the current design merely focused on female population.…”

Section: Discussionmentioning

confidence: 90%

“…An increase in Q angle has long been looked as a pathologic factor in PFPS 4,5 . Presumably the larger the Q angle, the larger the lateral pulling force on the patella 2 , but reportedly Q angle rarely correlated with patellofemoral pain syndrome(PFPS) 6,7 . Livingston and Mandigo 7 reported that no correlations between the Q angle measures and the magnitude of discomfort experienced in unilateral knee pain sufferers; while these relationships were weak yet significant in bilateral knee pain sufferers.…”

Section: Introductionmentioning

confidence: 99%

“…Presumably the larger the Q angle, the larger the lateral pulling force on the patella 2 , but reportedly Q angle rarely correlated with patellofemoral pain syndrome(PFPS) 6,7 . Livingston and Mandigo 7 reported that no correlations between the Q angle measures and the magnitude of discomfort experienced in unilateral knee pain sufferers; while these relationships were weak yet significant in bilateral knee pain sufferers. Since last decade, computer tomography (CT) has become an important diagnostic tool for better assessment of patellofemoral disorders 8,9,10 .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Better Association Between Q Angle and Patellar Alignment Among Less Displaced Patellae in Females with Patellofemoral Pain Syndrome: A Correlation Study with Axial Computed Tomography

Lin¹,

Lin²,

Lin³

et al. 2012

An International Perspective on Topics in Sports Medicine and Sports Injury

View full text Add to dashboard Cite

“…Manual measurements were performed with a standard goniometer compatible with the technique for Q angle assessment as shown in Figure 1. [10] BMI of every participant was calculated to determine obesity based on World Health Organization (WHO) obesity classification. BMI ranges were as follows -underweight: under 18.5 kg/m For the evaluation of pain, visual analog scale (VAS) was used compatible with the technique as described in the literature.…”

Section: Association Between Q Angle and Predisposition To Gonarthrosis*mentioning

confidence: 99%

Association between Q angle and predisposition to gonarthrosis

Havaslı¹,

Demir²,

Çiçek³

et al. 2017

Anatomy

View full text Add to dashboard Cite

Objectives: The aim of our study was to evaluate the relationship between quadriceps angle (Q angle), body mass index (BMI), dominant side and pain severity in gonarthrosis patients. Methods:In order to determine the Q angle in gonarthrosis patients, 205 volunteer patients (104 men and 101 women) diagnosed with gonarthrosis and 110 control subjects (60 men and 50 women) over 40 years of age were included. In the patient group, sides with pain, pain levels, right and left leg Q angle values, and dominant sides were evaluated.Results: Right Q angle value was found 13.21°±3.22° in patients and 13.26°±2.04° in controls, while the left Q values were 12.86°±3.35° and 12.65°±2.52° in patients and controls, respectively. No significant difference was found between the right and left Q angles both for patients (p=0.885) and controls (p=0.568). When the pain levels and right Q angles of the patients were compared, a positive correlation between the Q angle elevation and increase in pain was found (p=0.001). In addition, the pain level increase and left Q angle elevation of the patients were also found positively correlated (p=0.004). Conclusion:The results of this study show that measuring the Q angle, despite its low sensitivity and internal consistency levels, is an effective way of diagnosing and treating the lower extremity malalignments and related pathologies.

show abstract

Bilateral Q angle asymmetry and anterior knee pain syndrome

Cited by 68 publications

References 38 publications

Sex Differences and Representative Values for 6 Lower Extremity Alignment Measures

Sex Differences and Representative Values for 6 Lower Extremity Alignment Measures

Better Association Between Q Angle and Patellar Alignment Among Less Displaced Patellae in Females with Patellofemoral Pain Syndrome: A Correlation Study with Axial Computed Tomography

Association between Q angle and predisposition to gonarthrosis

Contact Info

Product

Resources

About