Treatment of Patellar Tendinopathy

First-Line Conservative Management

• Eccentric strengthening exercises are the cornerstone of treatment for patellar tendinopathy, reducing symptoms, increasing strength, and promoting tendon healing by stimulating collagen production and guiding normal alignment of newly formed collagen fibers, as recommended by the American Academy of Family Physicians 1, 2
• The American Academy of Family Physicians recommends implementing relative rest by reducing repetitive loading activities that reproduce pain, particularly jumping and stair navigation, to manage patellar tendinopathy 1, 2
• Critical pitfall: Avoid complete immobilization, as this causes muscular atrophy and deconditioning, according to the American Academy of Family Physicians and Praxis Medical Insights 2, 3

Pain Management

• The American College of Physicians recommends NSAIDs (oral or topical) for short-term pain relief, but notes they do not affect long-term outcomes, with topical NSAIDs being preferable due to elimination of gastrointestinal hemorrhage risk 4, 3
• Cryotherapy through a wet towel for 10-minute periods provides effective acute pain relief, as suggested by Praxis Medical Insights 4

Adjunctive Manual Therapy

• Deep transverse friction massage reduces pain and may provide additional benefit, according to the American Academy of Family Physicians and Praxis Medical Insights 1, 4

Secondary Treatment Options

• Corticosteroid iontophoresis is effective for treating patellar tendon pain and improving function, as recommended by the American Academy of Family Physicians 1
• Critical pitfall: Never inject corticosteroids directly into the tendon substance, as this inhibits healing, reduces tensile strength, and predisposes to spontaneous rupture, according to Praxis Medical Insights 4

Surgical Management

• Surgery is justified only after 3-6 months of well-managed conservative treatment has failed, as recommended by Praxis Medical Insights 4, 3, 5
• Open or arthroscopic excision of abnormal tendinous tissue and longitudinal tenotomies to release areas of scarring and fibrosis are surgical techniques used to treat patellar tendinopathy, according to Praxis Medical Insights 4, 5

Expected Outcomes

• Approximately 80% of patients recover completely within 3-6 months with appropriate conservative treatment, as reported by Praxis Medical Insights 4, 3

Diagnostic Confirmation

• Physical examination reveals pain at the inferior pole of the patella with resisted leg extension in full extension, and decline squat test reproduces pain by placing increased load on the patellar tendon, as described by the American Academy of Family Physicians and Praxis Medical Insights 1, 5
• Ultrasonography is more specific (94%) than sensitive (58%) for showing tendon thickening and decreased echogenicity, while MRI has moderate sensitivity (78%) and specificity (86%) for demonstrating chronic degenerative changes, according to the American Academy of Family Physicians 2

Critical Pitfalls to Avoid

• Do not proceed to surgery without an adequate 3-6 month trial of conservative treatment, as recommended by Praxis Medical Insights 4, 3, 5
• Avoid multiple corticosteroid injections as they weaken tendon structure despite short-term symptom relief, according to Praxis Medical Insights 4
• If multiple tendons are symptomatic, evaluate for underlying rheumatic disease, as suggested by the American Academy of Family Physicians and Praxis Medical Insights 2, 4

Eccentric Strengthening Exercises for Patellar Tendinopathy

Introduction to Eccentric Strengthening

• The American Academy of Family Physicians recommends heavy slow resistance training as an alternative to eccentric training, with moderate evidence supporting its use 6

Evidence for Eccentric Training

• The American College of Sports Medicine found that eccentric training has the strongest available evidence for any patellar tendinopathy treatment, with a 2012 systematic review finding "strong evidence" for eccentric training 6

Patellar Tendon Strengthening Exercises

Primary Exercise Prescription

• The American College of Rheumatology recommends training the quadriceps and surrounding muscle groups 2-3 days per week at 60-70% of one-repetition maximum for 8-12 repetitions across 2-4 sets, with at least 48 hours rest between sessions 7, 8
• The American College of Rheumatology suggests using 60-70% of 1RM for moderate to hard intensity if you are a novice to intermediate exerciser, with 8-12 repetitions per set to improve strength and power 7, 9, 10
• Completing 2-4 sets is recommended for optimal strength gains, with 2-3 minutes rest between sets and at least 48 hours rest between training sessions for the same muscle group 7, 8, 11

Alternative Strengthening Approaches

• Heavy Slow Resistance training is effective for long-term improvements in knee function, using higher loads with slower movement speeds, typically performed at ≥80% of 1RM for experienced exercisers 10

Complementary Exercise Components

• The American College of Rheumatology recommends performing stretching exercises for the quadriceps and hamstrings 2-3 days per week, holding static stretches for 10-30 seconds, with daily stretching providing the greatest gains 7, 8, 11
• Flexibility exercises are most effective when muscles are warmed through light aerobic activity first, with 60 seconds of total stretching time per flexibility exercise, repeating each stretch 2-4 times 7, 11
• Incorporating low-impact aerobic exercises, such as walking or cycling, can help maintain cardiovascular fitness and support overall tendon health, aiming for 30-60 minutes per day of moderate-intensity aerobic activity on most days 10, 12

Progression Strategy

• Gradually increasing resistance and/or repetitions per set and/or frequency as strength improves is recommended, with progression of exercise volume by adjusting duration, frequency, and intensity to enhance adherence and reduce risk of musculoskeletal injury 7, 8, 9

Management of Patellar Tendinopathy

Patient Education and Intervention

• The British Journal of Sports Medicine recommends patient education to address hypersensitivity and build confidence, emphasizing that pain doesn't necessarily correlate with tissue damage, particularly important given the hypersensitivity to light touch 13
• Patient education should include explaining that the condition represents chronic tendinosis rather than acute inflammation, and setting realistic expectations for recovery, with approximately 80% of patients recovering completely within 3-6 months with appropriate conservative treatment 13

Supporting Interventions

• The British Journal of Sports Medicine suggests considering medially directed patellar taping for short-term relief given elevated symptom severity, and using taping when rehabilitation is hindered by elevated symptom severity and irritability 13
• If favorable outcomes are not observed after a realistic trial period, it is recommended to reassess the intervention strategy 13