All are features of patellofemoral stress syndrome are all except
High-Yield Explanation
Answer: a) Giving way and then fallingPatellofemoral syndrome/Chondromalacia Patellae/ Patellofemoral pain syndromeDisorder of the patellofemoral joint presenting with anterior knee pain.Insidious in onsetExacerbated by activity involving strenuous or continuous flexionMore common in females than in malesSeen especially in the adolescent athleteMost common cause of knee pain in runners Associated ConditionsQuadriceps dysplasia/weaknessExtensor mechanism mal-alignmentPatellar instabilityRisk FactorsTraining errors (e.g., rapidly increased mileage)Female genderPoor quadriceps strengthDysplastic vastus medialis obliquusGeneralized ligamentous laxityHeel cord and hamstring tightnessPatella altaExtensor mechanism malalignment (increased femoral anteversion, increased Q angle, genu varum/valgus, external tibial torsion, pronated feet)Clinical features:Pain in the anterior knee, worse after strenuous and bent-knee activitiesPain with stair climbing, worse with going downPain after prolonged knee flexion, such as at theatres (movie-goer's knee) or during long car ridesPain with squatting and rising from squatted positionPseudo giving-way of the knee