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The Relation of Q Angle and Anthropometric Measures with Ankle Sprain; a Case-control study

Hamid Zamani Moghadam, Seyed Taha Hoseini, Amir Masoud Hashemian, Mohammad Davood Sharif




Introduction: Since most studies on ankle sprain are medical and sports-related and not much epidemiologic and etiologic data from the general population exist in this field, the present study evaluates the relationship between Q angle and anthropometric measures with ankle sprain in the general population.

Methods: In the present case-control study, all of the patients over 18 years age presenting to emergency departments (ED) of two educational Hospitals, complaining from ankle sprain, were evaluated during more than 1 year. A checklist consisting of demographic data, height, weight, body mass index (BMI), and history of ankle sprain, as well as degree of Q angle was filled for all participants. The correlation of mentioned variables with incidence of ankle sprain was calculated using SPSS 22.

Results: 300 patients with ankle sprain were evaluated (53.5% male). Mean age of the patients was 37.03 ± 14.20 years. Mean weight, height, and BMI were 71.71 ± 11.26 (43 – 114), 168.74 ± 8.63 (143 – 190) and 25.14 ± 3.19 (18.41 – 38.95), respectively. Mean Q angle of the patients was 12.78 ± 3.19 degrees (5 – 23). There was a significant correlation between weight (p < 0.001), BMI (p = 0.001), history of sprain (r: 0.26, p < 0.001) and Q angle (p = 0.002) with incidence of ankle sprain. In addition, there was a significant statistical correlation between weight (p = 0.031), BMI (p = 0.020) and Q angle (p = 0.004) with history of ankle sprain. In patients with a history of ankle sprain, Q angle was wider by about 2 degrees.

Conclusion: It seems that the prevalence of ankle sprain directly correlates with high weight, BMI, and Q angle and is more prevalent in those with a history of sprain. Although the findings of the present study show a statistically significant correlation between these factors and ankle sprain, the correlation is not clinically significant.


Ankle Injuries; Ankle Joint; Lateral Ligament, Ankle; Emergency service, hospital.


Bridgman S, Clement D, Downing A, Walley G, Phair I, Maffulli N. Population based epidemiology of ankle sprains attending accident and emergency units in the West Midlands of England, and a survey of UK practice for severe ankle sprains. Emergency Medicine Journal. 2003;20(6):508-10.

Wilson T, Kitsell F. Is the Q-angle an absolute or a variable measure?: Measurement of the Q-angle over one minute in healthy subjects. Physiotherapy. 2002;88(5):296-302.

Fousekis K, Tsepis E, Vagenas G. Intrinsic risk factors of noncontact ankle sprains in soccer a prospective study on 100 professional players. The American journal of sports medicine. 2012;40(8):1842-50.

Pefanis N, Papaharalampous X, Tsiganos G, Papadakou E, Baltopoulos P. The effect of Q angle on ankle sprain occurrence. Foot & ankle specialist. 2009;2(1):22-6.

Steinberg RJE, Picconatto W. Q‐angle: Does it Increase Risk of Ankle Sprains in NCAA Division III Women's Basketball?: 1879: Board# 167 10: 30 AM‐10: 30 AM. Medicine & Science in Sports & Exercise. 2007;39(5):S318-S9.

Waterman BR, Owens BD, Davey S, Zacchilli MA, Belmont PJ. The epidemiology of ankle sprains in the United States. J Bone Joint Surg Am. 2010;92(13):2279-84.

Beynnon BD, Murphy DF, Alosa DM. Predictive factors for lateral ankle sprains: a literature review. Journal of athletic training. 2002;37(4):376.

Hägglund M, Waldén M, Ekstrand J. Previous injury as a risk factor for injury in elite football: a prospective study over two consecutive seasons. British journal of sports medicine. 2006;40(9):767-72.

Baumhauer JF, Alosa DM, Renström PA, Trevino S, Beynnon B. A prospective study of ankle injury risk factors. The American journal of sports medicine. 1995;23(5):564-70.

DOI: http://dx.doi.org/10.22037/emergency.v5i1.12439

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