How to avoid knee replacement, and when not to wait

How to help a knee that still responds

Guided exercise can build strength and keep the joint moving. Weight loss, a cane, a brace, and medicine may also ease strain.

Give guided exercise several weeks unless the therapist sets a different time. Record walking, sleep, stairs, and swelling at the end of each week.

Waiting may make sense while walking, dressing, chores, and sleep stay steady. If those tasks get harder each month, the current care isn't doing enough.

QC Kinetix uses joint preservation for blood-based clinic procedures done by medical providers. They examine the joint before discussing whether these regenerative treatments fit the soreness.

Platelet-rich plasma, known as PRP, is the platelet-heavy portion separated by spinning your blood. The provider puts it inside the joint and may offer concentrated PRP.

How long does a knee replacement last, and what to ask

Replacement parts can last many years, but they may wear out. Another operation is generally less likely when the first happens later in life.

That doesn't make waiting harmless when the knee is getting worse. Less walking, sleep, and strength still matter during every month you wait.

Ask how your age, X-ray, health, and daily limits affect surgery timing. Ask what recovery would require once you return home.

Take notes on earlier care and describe what each treatment changed. Tell the surgeon which chores, steps, or walks still stop you.

When to stop putting surgery off

Doctors who write joint-care guidance advise against endless delay after good non-surgical care brings no relief. That care includes steady exercise, medicine, and walking aids when they fit.

Serious joint damage also makes a surgery talk more pressing. A surgeon can explain the likely gain and the risks in your case.

Compare that advice with what several more months may mean for daily life. Going into surgery stronger can still help with the work afterward.

Getting ready isn't a failed attempt to avoid the operation. It is useful work before surgery.

Sources

1. In 63,158 hip and 54,276 knee replacement patients in the Clinical Practice Research Datalink, the lifetime risk of requiring revision surgery was about 5% for patients operated on after age 70 with no sex difference, but rose to 35% (95% CI 30.9-39.1) for men having surgery in their early 50s, with women's risk about 15% lower at the same age. Median time to revision for patients operated on younger than 60 was 4.4 years. The authors state their evidence challenges the trend toward more replacements in younger patients.

   Bayliss LE, Culliford D, Monk AP, et al. — The effect of patient age at intervention on risk of implant revision after total replacement of the hip or knee: a population-based cohort study.. The Lancet, 2017. DOI: 10.1016/S0140-6736(17)30059-4.

2. A systematic review and meta-analysis of 89,996 patients (60.6% female, mean age 67.4) awaiting primary elective total hip or knee replacement found a significant deterioration in joint function (mean difference 0.0575% per additional day of waiting, 95% CI 0.0064 to 0.1086, p=0.028) and in health-related quality of life per additional day of waiting. Meta-analysis could not detect a relationship with post-operative outcomes, and patient responses to delayed surgery were unanimously negative.

   Cooper GM, Bayram JM, Clement ND. — The functional and psychological impact of delayed hip and knee arthroplasty: a systematic review and meta-analysis of 89,996 patients.. Scientific Reports, 2024. DOI: 10.1038/s41598-024-58050-6.

3. The 2023 ACR/AAHKS timing guideline conditionally recommends AGAINST delaying hip or knee arthroplasty to pursue additional non-operative treatment - physical therapy, NSAIDs, ambulatory aids or intra-articular injections - in patients with moderate-to-severe osteoarthritis for whom non-operative therapy has already been ineffective and who have chosen surgery. It conditionally recommends delay for nicotine cessation and for better glycemic control in diabetes, states that obesity by itself is not a reason for delay while weight loss should be strongly encouraged, and conditionally recommends against delay in patients with severe deformity or bone loss. Evidence for all recommendations was graded low or very low quality.

   Hannon CP, Goodman SM, Austin MS, et al. — 2023 American College of Rheumatology and American Association of Hip and Knee Surgeons Clinical Practice Guideline for the Optimal Timing of Elective Hip or Knee Arthroplasty for Patients With Symptomatic Moderate-to-Severe Osteoarthritis or Advanced Symptomatic Osteonecrosis With Secondary Arthritis for Whom Nonoperative Therapy Is Ineffective.. Arthritis & Rheumatology, 2023. DOI: 10.1002/art.42630.

4. Pooling the OAI and MOST cohorts (8,002 participants followed up to 8 years, 3,417 classifiable knees), validated appropriateness criteria classified only 290 knees (8%) as receiving a TIMELY total knee replacement, 2,833 knees (83%) as potentially appropriate but not replaced more than 2 years after replacement became appropriate, and 294 knees (9% of all knees, 26% of the 1,114 replacements actually performed) as PREMATURE. Of the potentially-appropriate-but-not-replaced knees, 1,204 (42.5%) had severe symptoms.

   Ghomrawi HMK, Mushlin AI, Kang R, et al. — Examining Timeliness of Total Knee Replacement Among Patients with Knee Osteoarthritis in the U.S.: Results from the OAI and MOST Longitudinal Cohorts.. Journal of Bone and Joint Surgery (American), 2020. DOI: 10.2106/JBJS.19.00432.

5. In the only randomised controlled trial to compare total knee replacement directly with non-surgical treatment in patients already eligible for surgery (n=100), the replacement group improved more at 12 months than the non-surgical group (KOOS4 32.5 vs 16.0; adjusted mean difference 15.8, 95% CI 10.0 to 21.5) but had four times the serious adverse events (24 vs 6, P=0.005). Only 13 of 50 patients (26%) assigned to non-surgical treatment alone had undergone knee replacement by 12 months.

   Skou ST, Roos EM, Laursen MB, et al. — A Randomized, Controlled Trial of Total Knee Replacement.. New England Journal of Medicine, 2015. DOI: 10.1056/NEJMoa1505467.

6. At 2 years across two parallel randomised trials (200 patients, mean age 66), total knee replacement plus non-surgical treatment beat non-surgical treatment alone by 18.3 KOOS points (95% CI 11.3 to 25.3), and non-surgical treatment in turn beat written advice by 7.0 points (95% CI 0.4 to 13.5). Among patients eligible for replacement, 16 of 50 (32%) in the non-surgical group had surgery within 2 years - meaning two out of three delayed it for at least two years.

   Skou ST, Roos EM, Laursen MB, et al. — Total knee replacement and non-surgical treatment of knee osteoarthritis: 2-year outcome from two parallel randomized controlled trials.. Osteoarthritis and Cartilage, 2018. DOI: 10.1016/j.joca.2018.04.014.