Blazina et al developed a simple staging system for patellar tendinopathy (jumper's knee) based on clinical findings.
Patient selection: jiumper's knee
(1) occurrence of pain relative to activities
(2) rupture of the patellar tendon
only after sports
pain at beginning of activity; disappears after warm-up; pain returns with fatigue
constant. during activity and at rest
• Partial rupture of the tendon is not described.
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Specialty: Surgery, orthopedic