Osgood Schlatter

Osgood Schlatter

  • patient: adolescent male athletes. Early adolescence (typically ages 13-14 for affected males, and ages 10-11 for affected females)
  • pathogenesis: This condition is caused by chronic/repetitive strain at the insertion of the patellar tendon on the tibial tubercle and is seen in pre-adolescent and adolescent patients undergoing rapid growth spurts. 
  • Sx: worsened by sports that involve repetitive running, jumping, or kneeling, and it improves with rest.  Approximately one fourth of affected individuals have bilateral disease. 
  • Dx: On physical examination, there is edema and tenderness over the tibial tubercleA firm mass can sometimes be felt due to heterotopic bone formation.  Pain can be reproduced by extending the knee against resistance
    • Radiographic findings are nonspecific and include anterior soft tissue swelling, lifting of tubercle from the shaft, and irregularity or fragmentation of the tubercle. 
  • Treatment consists of activity restriction, stretching exercises, and non-steroidal anti-inflammatory medications.

Like patellofemoral pain syndrome, Osgood-Schlatter disease can cause anterior knee pain that is worse with squatting; however, it would not be seen in adult patients.