Osgood Schlatter disease (OSD)
Osgood Schlatter disease (OSD) involves the tibial tuberosity in growing children. The condition is characterized by local pain, swelling and tenderness of the tuberosity.
The true incidence of OSD is unknown. The predominant age is between 12 and 15 years in boys and between 8 and 14 years in girls, coinciding with periods of growth spurts. Boys are more affected than girls (approximately 3:1). In 20-30% of all cases OSM presents bilaterally.
OSD is thought to be caused by repetitive strain and chronic avulsion. i.e., by small injuries due to repeated overuse before the area has finished growing.
The repetitive strain is from the strong pull of the quadriceps muscle. Produced during sporting activities, particularly during running, jumping and climbing.
Accordingly, OSD is common in adolescents who play football, basketball and volleyball, and who participate in gymnastics. The tibial tuberosity avulsion continues to grow, ossify and enlarge.
The treatment of OSD should start with conservative treatment modalities including rest, icing, modification of activities, and rehabilitation exercises. Patients not responding to conservative treatment for over 3 months (approximately 20% of all patients) have an option for shockwave therapy.
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