Article Text

FRI0576-HPR Static and dynamic postural control in individuals with chondromalacia patellae
  1. A. P. M. C. Carvalho E Silva1,
  2. G. Leão1,
  3. M. Magalhães1,
  4. A. P. Marques1
  1. 1Departamento de Fisioterapia, Fonoaudiologia e Terapia Ocupacional, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil


Background Chondromalacia patellae is a common cause of anterior Knee pain, especially in young athletes or sedentary [1]. These individuals often have muscle weakness of the quadriceps and gluteus medius, responsible for controlling the posterior and lateral balance, respectively [2]. The pain and muscle weakness could alter postural control, mainly in functional activities [3].

Objectives To assess static and dynamic postural control in individual with and without patellae chondromalacia.

Methods This study examined 40 women divided in two groups: Chondromalacia patellae(CP), n= 20, mean age 26 (6.6), weight 60.9 (10.2), height 162 (7) cm and Control Group (CG), n=20, mean age 24 (4.1), weight 58.4(6.0) Kg, height 163(5) cm. Postural control was evaluated in a force platform NeuroCom Balance Master. Static postural control was assessed by the one-leg support in two situations: eyes open (EO) and eyes closed (EC), while the dynamic control was assessed by the sit-to-stand test. We evaluated the symptomatic limb for chondromalacia patellae group and the dominant limb for the control group. The variables analyzed were: Time to transfer the center of gravity (COG), COG Sway Velocity and Rising Index. Pain was assessed with a visual analog scale (VAS) and function by the scale of activities of daily living (ADLS). Intergroup statistical analysis was performed using the t test and Mann- Whitney for data with normal and without normal distribution respectively. A significance level was α=0.05.

Results The chondromalacia patellae group presented worse postural control, static and dynamic, with faster COG sway velocity in one-leg support in both situations (OE and CE) and for sit-to-stand test (p<0.05). The CP group shows moderate pain, 5.7 (1.6) and minimal functional disability, 70.4 (7.5).

Conclusions Individuals with chondromalacia patellae have greater sway in support of COG one-leg support with EO and EC and in sit-to-stand activity rising, suggesting a deficit in postural control static and dynamic relative to the control group.


  1. Casscells SW. Chondromalacia of the patella. J Pediatr Orthop 1982;2:560–4.

  2. Magalhães E, Fukuda TY, Sacramento SN, Forgas A, Cohen M, Abdalla RJ. A comparison of hip strength between sedentary females with and without patellofemoral pain syndrome. J Orthop Sports Phys Ther. 2010;40:641-7.

  3. Lee SP, Souza RB, Powers CM. The influence of hip abductor muscle performance on dynamic postural stability in females with patellofemoral pain. Gait Posture. 2012 Jul;36:425-9.

Disclosure of Interest None Declared

Statistics from

Request permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.