# Before a repeat injection *Before A Repeat Injection | Knee Injections Gilbert* > Knee injections gilbert facts before a repeat: symptoms needing care today, what to bring, and why planned knee replacement changes the discussion. This page tells you which knee symptoms need quick care and what to discuss before another shot. ## A hot swollen knee with fever needs care today Get help today for a hot, swollen knee with fever. Also seek care if the knee grows hotter after a recent shot. Prompt care matters if you suddenly can’t stand on that leg. An injured knee stuck bent or visibly crooked also needs quick attention. New numbness or weakness may come from outside the knee. Tell the care team exactly when it began. Night sweats, weight loss, or strong soreness at night also matter. Don’t discuss another shot until a clinician has checked those symptoms. ## Planned knee surgery changes shot timing Tell the clinician about any booked or possible knee replacement. Cortisone near that operation can raise the risk of infection. Give the actual surgery date to the person treating your knee. Don’t assume the surgeon and clinic share their calendars. Mention diabetes, blood thinners, and any current infection. Your blood sugar can rise for a time after cortisone. Bring the names of all medicines you take. Add the type and date of each earlier knee shot. ## Less relief is a reason to reconsider Say if each earlier shot didn’t give you much relief. Include how walking, sleep, and swelling changed after every shot. Your medicines, shot dates, and amount of relief all help with the repeat decision. Ask what another shot is expected to help you do. Until the visit, choose easy movement over heavy activity. A cold pack may calm swelling after a busy day. Write your main questions so you don’t forget them. For soreness due to arthritis, QC Kinetix offers orthobiologics, meaning medical providers spin your blood at its Chandler clinic and put the prepared part into your knee. ## Sources 1. A meta-analysis found ipsilateral intra-articular corticosteroid injection within 3 months BEFORE joint arthroplasty was associated with increased periprosthetic joint infection risk, and the authors recommend against performing arthroplasty on a joint injected within that window - while injections given at any time overall showed no such association. Lai Q, et al. — [Prior Intra-articular Corticosteroid Injection Within 3 Months May Increase the Risk of Deep Infection in Subsequent Joint Arthroplasty: A Meta-analysis.](https://pubmed.ncbi.nlm.nih.gov/34919065/). *Clin Orthop Relat Res*, 2022. DOI: 10.1097/CORR.0000000000002055. 2. A meta-analysis of 10 RCTs of RECURRENT intra-articular corticosteroid injections (2-8 injections per patient) found they often gave inferior or non-superior relief compared with hyaluronic acid, PRP, saline or orgotein at 3 months and beyond, and no benefit over placebo in pain or function at 12-24 months. Donovan RL, et al. — [Effects of recurrent intra-articular corticosteroid injections for osteoarthritis at 3 months and beyond: a systematic review and meta-analysis in comparison to other injectables.](https://pubmed.ncbi.nlm.nih.gov/36108937/). *Osteoarthritis Cartilage*, 2022. DOI: 10.1016/j.joca.2022.07.011. 3. In a 2-year double-blind RCT of 140 patients with symptomatic knee OA and ultrasound synovitis, 40 mg intra-articular triamcinolone every 12 weeks produced significantly greater cartilage volume loss than saline (index compartment cartilage thickness change -0.21 mm vs -0.10 mm; between-group difference -0.11 mm, 95% CI -0.20 to -0.03) with no significant difference in knee pain. McAlindon TE, et al. — [Effect of Intra-articular Triamcinolone vs Saline on Knee Cartilage Volume and Pain in Patients With Knee Osteoarthritis: A Randomized Clinical Trial.](https://pubmed.ncbi.nlm.nih.gov/28510679/). *JAMA*, 2017. DOI: 10.1001/jama.2017.5283. 4. The GRASP factorial randomized trial (708 patients with rotator cuff disorders) found subacromial corticosteroid injection provided NO long-term benefit over 12 months, and progressive exercise was not superior to a single best-practice advice session with a physiotherapist. Hopewell S, et al. — [Progressive exercise compared with best practice advice, with or without corticosteroid injection, for the treatment of patients with rotator cuff disorders (GRASP): a multicentre, pragmatic, 2 × 2 factorial, randomised controlled trial.](https://pubmed.ncbi.nlm.nih.gov/34265255/). *Lancet*, 2021. DOI: 10.1016/S0140-6736(21)00846-1. 5. A randomized trial in 156 US Military Health System primary care patients compared physical therapy with intra-articular glucocorticoid injection for knee OA. At one year the mean WOMAC total score (0-240, higher is worse) was 55.8 in the injection group versus 37.0 in the physical therapy group — favouring physical therapy. Deyle GD, Allen CS, Allison SC, et al. — [Physical Therapy versus Glucocorticoid Injection for Osteoarthritis of the Knee.](https://pubmed.ncbi.nlm.nih.gov/32268027/). *New England Journal of Medicine*, 2020. DOI: 10.1056/NEJMoa1905877. 6. In a 3,822-patient cohort, 31.3% of those who received corticosteroid injections went on to knee arthroplasty versus 5.0% of those who did not; after matching, the hazard ratio was 1.57 (95% CI 1.37 to 1.81) and each injection raised the absolute nine-year risk of arthroplasty by 9.4%. Wijn SRW, et al. — [Intra-articular corticosteroid injections increase the risk of requiring knee arthroplasty.](https://pubmed.ncbi.nlm.nih.gov/32349592/). *Bone Joint J*, 2020. DOI: 10.1302/0301-620X.102B5.BJJ-2019-1376.R1. 7. The RUbICOn mixed-methods HTA study, commissioned specifically to address uncertainty about recurrent injections, combined a UK primary-care cohort (2005-2020) linked to hospital data with a safety analysis, patient and clinician interviews, and a three-round Delphi to set research priorities - the current formal acknowledgement that the long-term risks and benefits of repeat injections remain unresolved. Whitehouse MR, et al. — [RecUrrent Intra-articular Corticosteroid injections in Osteoarthritis: the RUbICOn mixed-methods study.](https://pubmed.ncbi.nlm.nih.gov/41217479/). *Health Technol Assess*, 2025. DOI: 10.3310/LFAJ9337. ## An exam can answer what a page cannot Written information can describe common causes and care, but it can’t examine your knee. Bring medicine names, earlier records, and notes about movements that raise soreness. At the Chandler office, medical providers can examine the joint and answer your questions. You can then decide whether a clinic visit fits your needs. Book a free consultation: --- Clear answers about a sore knee and what comes next. Clear guidance on knee soreness, including its common causes, shot timing, warning signs, and non-surgical care near Gilbert. Plain information about knee soreness, common shot timing, warning signs, and care near Gilbert. This site is written and operated by the owners of the QC Kinetix clinics serving the Phoenix area, whose nearest office to Gilbert is on South Dobson Road in Chandler. There is no bystander here: the people reading the literature by the calendar are the same people who would book the appointment, and that is printed on every page rather than left for a reader to work out. Copyright 2026 The Gilbert Knee Clock. General education about a body of published research, not medical advice about a particular knee - only a clinician who can examine one can tell you about yours.