Management of High-Grade Partial-Thickness Tear of the Proximal Patellar Tendon

Diagnostic Evaluation

MRI is the gold standard imaging modality for evaluating patellar tendon tears, with high sensitivity (95%) and specificity (95%) for detecting tendon degeneration, partial tears, and chronic tendinopathy 1
Ultrasound is a useful alternative with high specificity (94%) but lower sensitivity (58%), making it better at confirming rather than ruling out tendinopathy 1

The American Academy of Family Physicians recommends relative rest and activity modification to reduce activities that cause pain while avoiding complete immobilization to prevent muscle atrophy 2
The American Academy of Family Physicians suggests pain management using cryotherapy (ice) for short-term pain relief, applied through a wet towel for 10-minute periods 3
The American Academy of Family Physicians recommends eccentric strengthening exercises to reduce symptoms, increase strength, and promote tendon healing 4
Tensile loading stimulates collagen production and guides normal alignment of newly formed collagen fibers, as recommended by the American Academy of Family Physicians 3
Deep transverse friction massage may help reduce pain, according to the American Academy of Family Physicians 4

Surgical intervention should be considered when conservative management fails after 3-6 months, as recommended by the American Academy of Family Physicians 2

The American Academy of Family Physicians advises against corticosteroid injections directly into the tendon substance as they may inhibit healing and reduce tensile strength, potentially predisposing to spontaneous rupture 5
Complete immobilization should be avoided to prevent muscular atrophy and deconditioning, as recommended by the American Academy of Family Physicians 3

Eccentric strengthening exercises are the cornerstone of treatment to reduce symptoms, increase strength, and promote tendon healing, and can be combined with deep transverse friction massage to help reduce pain, as recommended by the American Academy of Family Physicians 6
Anatomical deformities such as forefoot and heel varus and excessive pes planus or foot pronation should be considered, as they may contribute to tendon problems, according to the American Academy of Family Physicians 6
The decline squat test can be used to confirm diagnosis, as it places increased load on the patellar tendon and often reproduces a patient's pain, as noted by the American Academy of Family Physicians 6