Total vs Partial Knee Replacement — Which Is Right for Your Arthritis?
Total knee replacement (TKR) replaces all three knee compartments with metal and polyethylene components. Partial (unicompartmental) knee replacement (PKR) resurfaces only the damaged compartment — typically the medial (inner) side — preserving cruciate ligaments and bone. PKR offers faster recovery and more natural movement but is only suitable for 25–30% of patients. Both are performed for $6,000–$15,000 abroad versus $30,000–$50,000 in the US.
Medically reviewed by Dr. Murat Ustun, M.D., Founder & Medical Director, Flytocure Healthcare.
Total Knee Replacement (TKR) vs Partial Knee Replacement (PKR / UKR) — Full Data Comparison
Unicompartmental OA, BMI <35, intact cruciate ligaments, good alignment
Hospital stay
3–5 nights
1–2 nights
Return to walking unaided
6–12 weeks
4–6 weeks
Return to low-impact sports
3–6 months
2–4 months
Natural feel / proprioception
Good — satisfies 85–90% of patients
Excellent — more natural movement, better stairs
Revision rate (10 years)
4–6%
8–12%
15-year survival
90–95%
85–90%
Cost abroad (all-inclusive)
$8,000–$15,000 in Turkey/India
$6,000–$11,000 in Turkey/India
Cost in the US
$30,000–$50,000
$25,000–$40,000
Clinical Outcome Data
Outcome Metric
Total Knee Replacement (TKR)
Partial Knee Replacement (PKR / UKR)
Oxford Knee Score improvement
+18–22 points (good to excellent)
+20–25 points
10-year implant survival
90–95%
85–90%
15-year implant survival
88–93%
80–88%
Patient satisfaction at 1 year
85–90%
88–93%
Stair climbing at 6 months
Good
Excellent
Hospital stay
3–5 nights
1–2 nights
Who Should Choose Total Knee Replacement (TKR)?
Patients with arthritis in more than one knee compartment
Patients with inflammatory arthritis (rheumatoid, psoriatic)
Patients with failed previous PKR requiring revision
Patients with BMI >35 (higher mechanical load on partial implant)
Patients with ligament damage or malalignment
Who Should Choose Partial Knee Replacement (PKR / UKR)?
Patients with medial compartment OA only (confirmed by X-ray/MRI)
BMI <35 and good overall fitness
Intact anterior and posterior cruciate ligaments
Patients prioritising fastest recovery and most natural feel
Younger active patients (<65) who may need revision later
Frequently Asked Questions
How do I know if I need total or partial knee replacement?
A standing full-leg X-ray (weight-bearing views in flexion and extension) assesses which compartments are affected. MRI evaluates cartilage loss, ligament integrity, and meniscal damage. The decision is based on: number of compartments affected (1 = PKR candidate; 2–3 = TKR); cruciate ligament integrity; degree of deformity/malalignment; BMI; and patient age/activity level. Approximately 25–30% of knee replacement patients are PKR candidates.
What is the best country for knee replacement abroad?
India (Chennai, Mumbai) leads for volume and cost: TKR $6,000–$10,000 at JCI-accredited centres. Turkey offers competitive pricing ($8,000–$13,000) with strong orthopaedic expertise, particularly in Istanbul. Germany and Czech Republic are preferred for European patients seeking the highest standards: TKR €12,000–€20,000. All use the same implant systems (Zimmer Biomet, Smith & Nephew, Stryker) as US hospitals.
How long do knee replacement implants last abroad?
At JCI-accredited centres using branded implant systems (Zimmer Biomet, Stryker, Smith & Nephew): TKR 15-year survival is 90–95%; PKR 15-year survival is 80–88%. Implant longevity is primarily determined by implant brand, surgeon volume, and post-operative rehabilitation — not where the surgery occurs. Clinics should provide a certificate of implant type, batch number, and warranty documentation.
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