TY - JOUR ID - 5044 TI - Bilateral Variability of the Quadriceps Angle (Q angle) in an Adult Indian Population JO - Iranian Journal of Basic Medical Sciences JA - IJBMS LA - en SN - 2008-3866 AU - Raveendranath, Veeramani AU - Nachiket, Shankar AU - Sujatha, Narayanan AU - Priya, Ranganath AU - Rema, Devi AD - Department of Anatomy, Sri Manakula Vinayakar Medical College, Pondicherry, India AD - Department of Anatomy, St. John’s Medical College, Sarjapur Road, Bangalore- 560034, Karnataka, India Y1 - 2011 PY - 2011 VL - 14 IS - 5 SP - 465 EP - 471 KW - Bilateral variability KW - Q angle KW - Tibial tuberosity DO - 10.22038/ijbms.2011.5044 N2 - Objective(s) The objective of this study was to document and explain bilateral differences in the Q angle. Materials and Methods Two hundred limbs of healthy adult Indian volunteers were studied. The Q angle was measured using a goniometric method with the subjects supine, quadriceps relaxed and lower limbs in neutral rotation. The relative lateral placement of the tibial tuberosity with respect to the centre of the patella was measured. Appropriate statistical tests were used to determine the bilateral variability in the Q angle and the lateral placement of the tibial tuberosity. Inter-observer variation of the above mentioned parameters were studied in twenty limbs. Results The average Q angle value of all the 200 limbs was 12.73 °C; the mean value on the right was 12.86 °C and 12.60 °C on the left. When the Q angle and the lateral placement of the tibial tuberosity were considered in pairs a significant difference was noted in males. The Q angle value on the right side was more often greater than the left. The relative lateral placement of the tibial tuberosity showed a significant positive correlation with the Q angle. The intra-class correlation coefficient was 0.66 for the Q angle and 0.8 for the lateral placement of the tibial tuberosity. Conclusion The present study shows that bilateral variability in the Q angle could be attributed to an alteration of the relative placement of the tibial tuberosity with respect to the centre of the patella. UR - https://ijbms.mums.ac.ir/article_5044.html L1 - https://ijbms.mums.ac.ir/article_5044_8fbd45b2e72153a8ad0e67467c7b8c82.pdf ER -