Department of Rehabilitation, Hospital of Traumatology (Ciudad Sanitaria Virgen de las Nieves), Carretera de Jaén SN, 18014 Granada, Spain.
Eur J Radiol. 2010 Jul;75(1):e64-7. doi: 10.1016/j.ejrad.2009.07.029. Epub 2009 Aug 21.
To compare clinical and computed tomography (CT) measures in extension, 20 degrees and 30 degrees of flexion of symptomatic knees of patient with idiopathic patellofemoral pain syndrome with the contra lateral asymptomatic knee.
Knees of 52 consecutive patients with idiopathic patellofemoral pain were studied with CT. In 28 patients this condition was unilateral and asymptomatic knee was used as control; 76 knees were symptomatic.
In patients with idiopathic patellofemoral pain we found a greater Q angle and internal condylar facet width in symptomatic knees with regard to asymptomatic knees.
Greater Q angle and medial condylar facet can lead to overpressure on the medial knee compartment during maneuvers that increase contact between patella and medial condylar facet, such as knee flexion and squatting, contributing to development of idiopathic patellofemoral pain.
比较特发性髌股关节疼痛综合征患者膝关节在伸直位、20 度屈曲位和 30 度屈曲位时的临床和计算机断层扫描（CT）测量值与对侧无症状膝关节的差异。
对 52 例连续特发性髌股关节疼痛患者的膝关节进行 CT 检查。在 28 例单侧患者中，使用无症状侧膝关节作为对照；76 个膝关节为症状侧。
在特发性髌股关节疼痛患者中，我们发现症状侧膝关节的 Q 角和内髁关节面宽度均大于无症状侧膝关节。
较大的 Q 角和内侧髁关节面可能导致在增加髌骨与内侧髁关节面接触的运动中（如膝关节弯曲和下蹲）对内侧膝关节间隙产生过度压力，从而导致特发性髌股关节疼痛的发生。
