Research Article

Mechanism of Knee Injuries in the National Basketball Association: A Video-Based Analysis

Table 2

NBA knee injury mechanism and structure.

MeasureOutcomeNumber (%) value

Mechanism of injuryKnee flexion, varus, external rotation6 (5.0)<0.001
Knee flexion, valgus, internal rotation33 (27.3)
Knee hyperflexion7 (5.8)
Knee hyperextension with valgus17 (14.0)
Knee hyperextension with varus19 (15.7)
Knee hyperextension14 (11.6)
Axial load8 (6.6)
Direct trauma17 (14.0)

Injured structurePatella11 (9.1)<0.001
ACL29 (24.0)
PCL1 (0.8)
MCL20 (16.5)
Meniscus13 (10.7)
Quadriceps tendon3 (2.5)
Popliteus1 (0.8)
Bony fracture2 (1.7)
Non-specific41 (33.9)