Sindig-Larsen-Johanssen Disease Wheeless

Description: - cause of discomfort in anterior aspect of the knee;
- caused by persistent traction at the cartilaginous junction of patella & patellar ligament, usually at inferior patellar pole;
- usually seen in an active preteen boy who complains of activity-related pain;
- differential diagnosis:
- pediatric patella avulsion fractures
- patellar stress fracture;
- bipartite patella (type I)
- Osgood Schlatter's disease)
- calcification is present at the inferior pole of the patella (where as tenderness or calcification along the tibial tubercle;
- jumper's knee is considered in older adolescents;
Wheeless' Textbook of Orthopaedics