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Per-claim provenance."}],"not_medical_advice":true},"slug":"tendinopathy","title":"Tendinopathy: why the injection that helps this month leaves you worse next year","register":"accessible","tags":[],"updated_at":"2026-08-05T09:08:40.383Z","body_excerpt":"The name lies to you. For a century this was called tendinitis, the \"-itis\" meaning inflammation, and that single syllable sent millions of people toward anti-inflammatories and steroid injections. When pathologists finally looked at the tissue they took out of chronically painful tendons, the inflammatory cells largely were not there. What they found was disorganised collagen, disordered blood vessels growing in where they do not belong, and a repair process that had started and never finished.\n\nHence tendinopathy — a deliberately vague word meaning \"something is wrong with this tendon\" — and hence the fact that the most intuitive treatment for it is the one with the worst long-term record in the literature.\n\nStart with that finding, because everything else follows from it.\n\n## The injection makes this month better and next year worse\n\nThis is the most important sentence on the page, and it comes from a meta-analysis in the Lancet that pooled 41 randomised trials covering 2,672 people across every common tendon site.\n\n**Steroid injections beat the alternatives in the short term. At six months and at a year, that advantage had not just faded — it had reversed.**\n\n[[embed:source:s1]]\n\nReversed means the injected group ended up worse than the people who did not get injected. Not equal. Worse.\n\nA separate randomised trial in patellar tendon pain watched the same thing happen and looked inside the tendon while it did. Steroid injection produced good early results and poor late ones. Heavy slow resistance training produced good early results *and* good late ones — and, unlike the injection, the tendon tissue itself improved and collagen turnover went up.\n\n[[embed:source:s2]]\n\nSo the choice is not \"fast relief versus slow relief\". It is: an intervention that borrows relief from your future, or an intervention that is slower at first and repays you.\n\nA 2025 review of the same question in the rotator cuff lands in the same place, in gentler words: steroids are useful for rapid symptom control, the benefit wanes, and repeated use carries risk.\n\n[[embed:source:s3]]\n\nThere is a legitimate use for that trade. If you cannot sleep, or you cannot begin loading the tendon at all because of pain, buying a window in which rehabilitation becomes possible is a reasonable purchase. Buying relief and then doing nothing with the window is how people end up in the worse-at-a-year group.\n\n## Loading the tendon is the treatment, and there is no way around it\n\nEverything with good long-term evidence is a version of the same thing: apply controlled, progressive load to the tendon, repeatedly, for months.\n\nA living systematic review of 68 randomised trials in the common lower-limb tendinopathies reached a blunt recommendation.\n\n[[embed:source:s4]]\n\nThree months of exercise on its own, before considering anything added to it. That is the recommendation from the largest current synthesis, and it is roughly the opposite of the usual sequence, which is an injection first and exercise if that fails.\n\nThe same review examined the most popular add-on and found it does not earn its place: adding shockwave therapy to eccentric exercise in patellar tendon pain produced no short-term benefit on pain or function, on moderate-strength evidence.\n\n[[embed:source:s5]]\n\nA UK military rehabilitation consensus — a group with a strong operational interest in getting people back to load-bearing work quickly — came to the same conclusion.\n\n[[embed:source:s6]]\n\nWhen the organisation that most wants a shortcut says exercise is the primary treatment and everything else is case by case, that is worth more than an enthusiastic clinic website.\n\n## What the loading actually looks like\n\nThe best-studied protocol is Alfredson's: 3 sets of 15 slow lowering repetitions, twice a day, for twelve weeks. For an Achilles tendon that is standing on a step and lowering the heel below the step, using the good leg to get back up.\n\nTwo details decide whether it works.\n\n**It is meant to hurt, withi","ranking":"safety-first (interaction_risk/limitations), then quote-gated effective_weight","claims":[{"id":"c1","text":"A corticosteroid injection into a tendon improves symptoms in the short term and produces worse outcomes at longer follow-up than loading alone.","tier":"rct","interaction_risk":false,"status":"active","source_ids":["s1","s2","s3"],"source_status":"sourced","why_material":"It is the central trade-off in tendon care, it is counterintuitive, and it is the decision most likely to be made on the basis of how this month feels.","retracted_at":null,"retraction_reason":null,"challenged_by":[],"effective_weight":0.1,"quote_gated":false},{"id":"c2","text":"Progressive loading of the tendon is the treatment for tendinopathy, and no adjunct has been shown to replace it.","tier":"rct","interaction_risk":false,"status":"active","source_ids":["s2","s4","s7"],"source_status":"sourced","why_material":"Everything else on offer is an adjunct to this or a substitute for it, and the substitutes do not work. It sets the standard every other option is measured against.","retracted_at":null,"retraction_reason":null,"challenged_by":[],"effective_weight":0.1,"quote_gated":false},{"id":"c3","text":"Different exercise protocols — eccentric decline, heavy slow resistance, and others — perform comparably, so the specific protocol matters less than doing one consistently.","tier":"rct","interaction_risk":false,"status":"active","source_ids":["s7","s6"],"source_status":"sourced","why_material":"It removes the most common reason people stall: searching for the optimal protocol instead of completing an adequate one.","retracted_at":null,"retraction_reason":null,"challenged_by":[],"effective_weight":0.1,"quote_gated":false},{"id":"c4","text":"Topical glyceryl trinitrate has been tested as an adjunct to eccentric exercise in randomised trials rather than assumed to work.","tier":"rct","interaction_risk":false,"status":"active","source_ids":["s8"],"source_status":"sourced","why_material":"It is one of the few adjuncts with randomised evidence either way, which is what separates it from the ones sold on mechanism alone.","retracted_at":null,"retraction_reason":null,"challenged_by":[],"effective_weight":0.1,"quote_gated":false},{"id":"c5","text":"Recovery is measured in about twelve weeks of consistent loading, and the point at which people quit is around week four, before the change is visible.","tier":"expert","interaction_risk":false,"status":"active","source_ids":["s4","s6"],"source_status":"sourced","why_material":"The single most useful thing to know in advance, because the drop-out point arrives before the results do and knowing that is what gets someone past it.","retracted_at":null,"retraction_reason":null,"challenged_by":[],"effective_weight":0.1,"quote_gated":false}],"sources":[{"id":"s1","type":"pubmed","url":"https://pubmed.ncbi.nlm.nih.gov/20970844/","title":"Efficacy and safety of corticosteroid injections and other injections for management of tendinopathy: a systematic review of randomised controlled trials","quote":"We showed consistent findings between many high-quality randomised controlled trials that corticosteroid injections reduced pain in the short term compared with other interventions, but this effect was reversed at intermediate and long terms.","summary":"Coombes et al., Lancet 2010: 41 randomised trials, 2,672 participants, across the common tendon sites. The short-term advantage of steroid injection reverses by 26 weeks and a year — the injected group ends up worse, not merely equal.","claim_ids":[],"hash":"2cb6a35c7accae117e47a4e794c40d3ba8a8c92ea126760b8761a118b883a623"},{"id":"s2","type":"pubmed","url":"https://pubmed.ncbi.nlm.nih.gov/19793213/","title":"Corticosteroid injections, eccentric decline squat training and heavy slow resistance training in patellar tendinopathy","quote":"HSR has good short- and long-term clinical effects accompanied by pathology improvement and increased collagen turnover.","summary":"Kongsgaard et al., Scandinavian Journal of Medicine & Science in Sports 2009: steroid injection, eccentric decline squats and heavy slow resistance compared head to head in patellar tendon pain. Steroid was good early and poor late; heavy slow resistance was good at both, and the tendon tissue itself improved.","claim_ids":[],"hash":"2065760df9752b1758f4d6ac957d65ccc90c8175bc4c2c56bfc34374689045d3"},{"id":"s3","type":"pubmed","url":"https://pubmed.ncbi.nlm.nih.gov/41268031/","title":"Short-Term Relief or Long-Term Repair: A Narrative Review of Corticosteroid and Platelet-Rich Plasma Injections in Rotator Cuff Tendinopathy","quote":"Corticosteroids remain useful for rapid symptom control, but benefits wane and repeated use may pose risks.","summary":"Cureus 2025: the same short-versus-long tension in the rotator cuff. Platelet-rich plasma looked more durable in prospective studies, with wide variation in preparation methods and higher cost.","claim_ids":[],"hash":"ad5bb42585c3c3fe89799b70ce2050b7f5e5efdc1ceadea2106f65bf0fa4d849"},{"id":"s4","type":"pubmed","url":"https://pubmed.ncbi.nlm.nih.gov/37553459/","title":"Effectiveness of Exercise Treatments with or without Adjuncts for Common Lower Limb Tendinopathies: A Living Systematic Review and Network Meta-analysis","quote":"Therefore, we recommend that exercise monotherapy continues to be offered as first-line treatment for patients with Achilles and patellar tendinopathies and GTPS for at least 3 months before an adjunct is considered.","summary":"Sports Medicine Open 2023: a living systematic review of 68 randomised trials in the common lower-limb tendinopathies. Three months of exercise alone before anything is added to it.","claim_ids":[],"hash":"fca50b19fff51c2edd90a44d8120f40354dae8eccb38722c0d20ba6958336df9"},{"id":"s5","type":"pubmed","url":"https://pubmed.ncbi.nlm.nih.gov/37553459/","title":"Effectiveness of Exercise Treatments with or without Adjuncts for Common Lower Limb Tendinopathies: A Living Systematic Review and Network Meta-analysis","quote":"Based on evidence of moderate strength, the addition of extracorporeal shockwave therapy to eccentric exercise in patellar tendinopathy was associated with no short-term benefit in pain or VISA-P.","summary":"The same review on the most commonly sold add-on: shockwave layered on top of eccentric exercise produced no short-term benefit on pain or function.","claim_ids":[],"hash":"963836077751750c09dce34f282ba0e3bc3151e52f0f6ddf88c8b3108ef91b60"},{"id":"s6","type":"pubmed","url":"https://pubmed.ncbi.nlm.nih.gov/39824541/","title":"UK Defence Rehabilitation consensus agreement for the conservative management of Achilles and patellar tendinopathy: a modified Delphi approach","quote":"The consensus panel strongly advocates exercise rehabilitation as the primary management of Achilles and patellar tendinopathy.","summary":"BMJ Military Health 2026: UK Defence Rehabilitation consensus. A group with every operational reason to want a shortcut concludes exercise is primary and adjuncts are case-by-case.","claim_ids":[],"hash":"29a07462635f4ff6b05c85088f00778b99a3d4f843e5fd70f8894a5fe26ae9cd"},{"id":"s7","type":"pubmed","url":"https://pubmed.ncbi.nlm.nih.gov/37628466/","title":"Comparability of the Effectiveness of Different Types of Exercise in the Treatment of Achilles Tendinopathy: A Systematic Review","quote":"Research evidence supports the effectiveness of a progressive loading eccentric exercise program based on Alfredson's protocol, which could be modified in intensity and pace to fit the needs of each patient with AT.","summary":"Healthcare 2023: the twelve-week loading protocol holds up, and can be adjusted in intensity and pace to the individual rather than followed rigidly — which matters, because the strict version is commonly abandoned.","claim_ids":[],"hash":"d9da80405de1ccc193ed91c4d14c4c95f478869a92bcaf8af348f5b6e44ca432"},{"id":"s8","type":"pubmed","url":"https://pubmed.ncbi.nlm.nih.gov/39013615/","title":"Topical glyceryl trinitrate (GTN) and eccentric exercises in the treatment of mid-portion achilles tendinopathy (the NEAT trial): a randomised double-blind placebo-controlled trial","quote":"Significant improvements in VISA-A scores occurred in both groups at 6-week, 12-week and 24-week follow-up.","summary":"British Journal of Sports Medicine 2024: topical glyceryl trinitrate added to eccentric exercise for mid-portion Achilles tendon pain. Both arms improved at every timepoint and the between-group difference was not significant — the patch added nothing, and the exercise worked in both.","claim_ids":[],"hash":"8ff66de2cd514688df5c8b1e9e220f549ebc9469ac8fa5f3ad48851390e9ff97"}],"anecdotal_sources":[],"scientific_sources":[{"id":"s1","type":"pubmed","url":"https://pubmed.ncbi.nlm.nih.gov/20970844/","title":"Efficacy and safety of corticosteroid injections and other injections for management of tendinopathy: a systematic review of randomised controlled trials","quote":"We showed consistent findings between many high-quality randomised controlled trials that corticosteroid injections reduced pain in the short term compared with other interventions, but this effect was reversed at intermediate and long terms.","summary":"Coombes et al., Lancet 2010: 41 randomised trials, 2,672 participants, across the common tendon sites. The short-term advantage of steroid injection reverses by 26 weeks and a year — the injected group ends up worse, not merely equal.","claim_ids":[],"hash":"2cb6a35c7accae117e47a4e794c40d3ba8a8c92ea126760b8761a118b883a623"},{"id":"s2","type":"pubmed","url":"https://pubmed.ncbi.nlm.nih.gov/19793213/","title":"Corticosteroid injections, eccentric decline squat training and heavy slow resistance training in patellar tendinopathy","quote":"HSR has good short- and long-term clinical effects accompanied by pathology improvement and increased collagen turnover.","summary":"Kongsgaard et al., Scandinavian Journal of Medicine & Science in Sports 2009: steroid injection, eccentric decline squats and heavy slow resistance compared head to head in patellar tendon pain. 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Platelet-rich plasma looked more durable in prospective studies, with wide variation in preparation methods and higher cost.","claim_ids":[],"hash":"ad5bb42585c3c3fe89799b70ce2050b7f5e5efdc1ceadea2106f65bf0fa4d849"},{"id":"s4","type":"pubmed","url":"https://pubmed.ncbi.nlm.nih.gov/37553459/","title":"Effectiveness of Exercise Treatments with or without Adjuncts for Common Lower Limb Tendinopathies: A Living Systematic Review and Network Meta-analysis","quote":"Therefore, we recommend that exercise monotherapy continues to be offered as first-line treatment for patients with Achilles and patellar tendinopathies and GTPS for at least 3 months before an adjunct is considered.","summary":"Sports Medicine Open 2023: a living systematic review of 68 randomised trials in the common lower-limb tendinopathies. 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