Top 10 Types of Knee Replacement Surgery Which Is Best?

Choosing among the top 10 types of knee replacement surgery is not a simple ranking exercise. The “best” option depends on damaged compartments, bone quality, age, activity, alignment, and surgical experience. A person with isolated medial arthritis may need a partial replacement. Someone with widespread damage may require total knee replacement.

As orthopedic surgeon Dr. Geoffrey Westrich of Hospital for Special Surgery has stated, “There is no one-size-fits-all approach to knee replacement.” That principle guides this article about knee replacement surgery. We will examine total, partial, patellofemoral, revision, bilateral, cemented, cementless, robotic-assisted, custom, and rotating-platform procedures. Each type has a different purpose. Each also carries limitations.

Look closely at the details. A partial implant may preserve healthy bone and feel more natural, but arthritis can later affect another compartment. Robotic assistance may improve planning, yet it does not replace clinical judgment. Cementless fixation can support bone growth, although recovery and suitability vary. These distinctions matter beside a hospital bed, with a swollen knee and a walker nearby.

There is no perfect operation. Even experienced surgeons weigh uncertain factors. Implant design, rehabilitation, pain control, and patient expectations can change the result. This guide cannot choose a procedure for you. It can, however, clarify the questions worth asking before consultation. Final decisions should follow imaging, physical examination, medical history, and a detailed discussion with a qualified orthopedic specialist.

Table of Contents [Hide]

1 How Knee Replacement Is Classified: Total, Partial, Revision, and Custom Options

2 The Top 10 Knee Replacement Types: Designs, Approaches, and Implant Materials

3 AAOS Data: Why 90% of Knee Replacements Last 15–20 Years

4 How Surgeons Select the Best Type by Damage, Age, Activity, and Risk

5 Comparing Outcomes: Recovery, Pain Relief, Revision Risk, and Cost Data

How Knee Replacement Is Classified: Total, Partial, Revision, and Custom Options

Knee replacement is not one operation. It is classified by how much joint surface is replaced and whether the surgery is primary or repeat. Total knee replacement resurfaces the femur, tibia, and usually the kneecap. It suits widespread arthritis, persistent pain, and major stiffness. Partial knee replacement treats disease in one compartment, preserving healthier bone, ligaments, and cartilage. Patients often recover faster, but alignment and ligament condition matter greatly.

Revision knee replacement removes or repairs an existing implant. It may address loosening, infection, instability, fracture, or severe wear. The procedure can require longer stems, bone grafting, or specialized reconstruction. According to the American Joint Replacement Registry’s 2024 Annual Report, its dataset includes more than three million hip and knee procedures. Registry evidence also shows that revision outcomes vary with patient health, surgical complexity, and the reason for failure.

Custom options use detailed imaging and planning to match an individual’s anatomy. They may help when bone shape is unusual or previous surgery changed the joint. They do not guarantee better long-term results. Evidence remains less mature than for standard implants. That matters.

The “best” type depends on symptoms, imaging, ligament stability, activity goals, and infection risk. A surgeon should compare these factors, not simply promote the newest option. One overlooked detail is pain source. Hip, spine, or tendon problems can imitate knee arthritis. Even experienced teams can misclassify symptoms before a careful examination. Decisions should include validated scores, shared discussion, and realistic recovery expectations.

Top 10 Types of Knee Replacement Surgery: Typical Compartments Addressed

Knee replacement options are commonly classified by how much of the knee is treated and by implant design. This chart shows the typical number of knee compartments addressed: medial, lateral, and patellofemoral.

Partial replacements usually address one compartment, bicompartmental procedures address two, and total knee replacement addresses all three. Revision, constrained, hinged, and custom procedures may vary according to bone loss, ligament stability, alignment, and the previous implant. The best option depends on the patient’s diagnosis, anatomy, activity level, and surgeon’s assessment.

The Top 10 Knee Replacement Types: Designs, Approaches, and Implant Materials

The phrase “top 10 knee replacement types” includes different designs, surgical approaches, and materials. A total knee replacement resurfaces three joint compartments, while a unicompartmental replacement treats one damaged area. A patellofemoral replacement focuses on the kneecap groove. These options suit different patterns of arthritis.

Implant designs also include cruciate-retaining, posterior-stabilized, and bicruciate-retaining systems. Fixed-bearing inserts stay still, while mobile-bearing inserts allow limited movement. The categories overlap, which makes a perfect top-ten list difficult. Still, the distinctions help patients ask better questions.

Surgeons may use conventional, computer-assisted, or robotic-assisted approaches. These methods differ in planning and alignment, not necessarily in long-term results for every patient. Implant materials commonly include cobalt-chromium alloys, titanium, ceramic surfaces, and highly durable polyethylene inserts. Each material has different strengths, wear characteristics, and imaging considerations. A surgeon may combine one design with another approach and material. The “best” choice depends on ligament stability, bone quality, activity level, age, and knee alignment. It also depends on the surgeon’s experience. Recovery can feel uneven, even after technically successful surgery. A careful discussion should cover risks, rehabilitation, expected motion, and what happens if the first plan changes.

AAOS Data: Why 90% of Knee Replacements Last 15–20 Years

Knee replacement surgery includes total, partial, kneecap, complex, and revision procedures. The best choice depends on damaged areas, leg alignment, activity level, and overall health. A careful examination matters more than a popular online list. Imaging helps the surgeon see whether arthritis affects one compartment or the whole knee.

AAOS data and patient education materials indicate that about 90% of knee replacements remain successful for 15 to 20 years. “Successful” usually means the joint still works well without revision surgery. That figure is encouraging, but it is not a personal guarantee. Some implants last longer, while others may fail earlier because of infection, loosening, injury, stiffness, or persistent pain. Wear still happens.

Daily habits influence long-term results. Keeping a healthy weight can reduce stress during stairs, walking, and standing. Low-impact exercise supports muscle strength around the knee. Smoking, uncontrolled diabetes, and repeated high-impact activity may complicate recovery or increase risk. In my view, the difficult part is accepting that excellent surgery cannot control every variable. Patients should ask how long similar procedures lasted in their surgeon’s practice, what restrictions apply, and what symptoms require review. A second opinion can also clarify whether partial replacement, total replacement, or non-surgical care fits the actual damage.

How Surgeons Select the Best Type by Damage, Age, Activity, and Risk

Choosing among the top 10 types of knee replacement surgery starts with the damage, not a popularity list. A surgeon examines X-rays, alignment, ligament stability, range of motion, pain patterns, and daily limitations. Total knee replacement may suit arthritis across several compartments. Partial replacement can preserve healthy bone when damage remains limited to one area. Kneecap replacement is considered less often, when disease is mainly behind the kneecap. Revision surgery addresses a failed or worn implant, but it usually requires more planning and bone assessment.

Age matters, but it should not decide the operation alone. A healthy, active 55-year-old may need a durable solution for work, stairs, or recreational exercise. An older adult with medical conditions may need a shorter, carefully managed procedure. Activity goals help surgeons judge stability and recovery demands. They also review diabetes, weight, heart or lung disease, bone quality, previous operations, and infection risk. Sometimes the safest choice is not the most technologically advanced one.

No checklist is perfect. A scan can look severe while pain remains manageable. Another knee may appear moderate but make every step difficult. Experienced surgeons compare images with the person’s story and physical findings. They should explain expected pain relief, movement limits, rehabilitation time, and possible complications in plain language. A second opinion can expose an overlooked option. Even then, uncertainty remains; surgical decisions are shared, individualized, and open to careful reconsideration.

Top 10 Types of Knee Replacement Surgery Which Is Best? - How Surgeons Select the Best Type by Damage, Age, Activity, and Risk

No.	Type of Surgery	Main Area Treated	Typical Candidate	How Age and Activity Influence Selection	Important Benefits	Main Limitations or Risks
01	Primary Total Knee Replacement	Replaces the damaged surfaces of the femur, tibia, and usually the underside of the kneecap.	People with advanced arthritis or other extensive damage affecting two or more knee compartments, persistent pain, and significant loss of function.	Commonly selected when damage is widespread rather than based on age alone. Activity goals, muscle strength, weight, alignment, and medical conditions affect recovery planning.	Most versatile option for multi-compartment disease; predictable pain relief and functional improvement for appropriately selected patients.	Larger operation than partial replacement; possible stiffness, infection, blood clots, loosening, instability, or persistent pain.
02	Medial Unicompartmental Knee Replacement	Replaces only the inner, or medial, compartment of the knee.	Isolated medial-compartment osteoarthritis with preserved ligaments, correctable alignment, and relatively healthy lateral and patellofemoral compartments.	Can suit active patients who meet the anatomical criteria. Younger age may increase the chance of later disease in another compartment, but age alone does not exclude this option.	Smaller bone resection, faster early recovery, and more natural knee kinematics in selected patients.	Not suitable for widespread arthritis, major ligament insufficiency, fixed deformity, or inflammatory joint disease; additional surgery may be needed if other compartments deteriorate.
03	Lateral Unicompartmental Knee Replacement	Replaces only the outer, or lateral, compartment of the knee.	Isolated lateral-compartment arthritis with intact major ligaments and preserved medial and patellofemoral compartments.	Activity level is considered together with alignment, ligament function, and the condition of the remaining cartilage. It is less commonly performed than medial partial replacement.	Preserves more native bone and may preserve more normal knee movement than total replacement.	Strict anatomical selection is required; progression of arthritis elsewhere or implant problems can lead to revision surgery.
04	Patellofemoral Replacement	Replaces the joint between the kneecap and the front of the femur.	Isolated, severe patellofemoral arthritis or cartilage loss with relatively preserved medial and lateral compartments.	Often considered in younger or middle-aged patients when disease is genuinely isolated. High-impact activity, malalignment, and generalized arthritis may make total replacement more appropriate.	Preserves the main weight-bearing compartments and removes less bone than total knee replacement.	Failure or progression of arthritis in other compartments may require conversion to total knee replacement; maltracking can affect results.
05	Bicompartmental Knee Replacement	Replaces two compartments, commonly the medial and patellofemoral compartments, while preserving the unaffected compartment.	Selected patients with disease limited to two compartments and functioning cruciate and collateral ligaments.	May appeal to active patients wishing to preserve more native knee structures, but the decision depends heavily on imaging, alignment, stability, and surgeon experience.	Preserves the unaffected compartment and more native bone than a standard total replacement.	Less commonly used; progression of disease in the preserved compartment, alignment problems, or implant-specific complications may lead to revision.
06	Cruciate-Retaining Total Knee Replacement	A total replacement that preserves a functioning posterior cruciate ligament.	Patients whose posterior cruciate ligament is healthy and whose knee can be balanced without sacrificing it.	May provide a more natural-feeling motion for some patients. Age and activity matter less than ligament quality, deformity, bone condition, and soft-tissue balance.	Preserves native ligament tissue and may allow normal proprioceptive input and movement patterns.	Not appropriate when the posterior cruciate ligament is damaged or insufficient; instability or balancing problems can occur.
07	Posterior-Stabilized Total Knee Replacement	A total replacement using a built-in cam-and-post mechanism to substitute for the posterior cruciate ligament.	Patients with a deficient or removed posterior cruciate ligament, significant deformity, or a need for more predictable flexion mechanics.	Useful across a broad age range when ligament function or deformity requires it. Activity goals help guide rehabilitation, but the design is selected mainly by anatomy and stability.	Provides dependable posterior stability when the posterior cruciate ligament cannot be preserved.	Removes additional bone and may create post wear, patellar complications, or mechanical noise; it is not necessary for every patient.
08	Constrained Condylar Knee Replacement	A total replacement with increased coronal-plane stability compared with standard designs.	Complex primary cases with substantial ligament imbalance, moderate bone loss, or severe deformity that cannot be adequately managed with a conventional design.	More likely in older patients with severe deformity or ligament deficiency, but complex anatomy at any age may require it. Lower-impact activity is generally encouraged after surgery.	Improves stability when collateral ligament support is inadequate but a rotating hinge is not required.	Transfers greater forces to the bone and implant fixation; wear, loosening, and revision risk may be higher than with less-constrained designs.
09	Rotating-Hinge Knee Replacement	A highly constrained replacement that links the femoral and tibial components while allowing controlled rotation.	Severe ligament deficiency, major bone loss, complex deformity, fracture-related damage, tumor-related reconstruction, or selected salvage procedures.	Chosen because of structural instability or bone loss, not simply because of age. Medical risk, rehabilitation capacity, and realistic activity goals are especially important.	Provides substantial mechanical stability when ordinary total replacement designs cannot control the knee.	More extensive surgery with higher mechanical demands on fixation and bone; infection, loosening, wear, and revision remain important concerns.
10	Revision Knee Replacement	Removes and replaces some or all components of a previous knee replacement.	Implant loosening, infection, instability, wear, fracture, significant bone loss, stiffness, or recurrent pain with an identified cause.	Age, bone quality, frailty, immune status, prior operations, and activity expectations influence the plan. Revision surgery is generally more demanding than primary replacement.	Addresses failure of a previous replacement and can restore stability, alignment, and function when the cause is correctly identified.	Longer recovery, greater blood loss and bone loss, higher complication risk, and sometimes the need for more constrained implants or staged treatment for infection.

Clinical selection note: There is no universally “best” knee replacement type. Surgeons usually prioritize the pattern of cartilage damage, ligament stability, limb alignment, bone quality, previous operations, medical risk, rehabilitation capacity, and the patient’s activity goals. Age and body weight are considered, but they are not used as the sole decision criteria.

Comparing Outcomes: Recovery, Pain Relief, Revision Risk, and Cost Data

Choosing among the top 10 types of knee replacement surgery requires more than comparing advertised success rates. Total knee replacement often suits widespread arthritis, while partial replacement may preserve healthier tissue and support faster recovery. Patellofemoral replacement can target damage behind the kneecap. Complex, hinged, rotating-platform, revision, cemented, cementless, hybrid, and computer-assisted procedures address different clinical problems.

Recovery varies sharply. Many patients walk with support within days, but swelling can last for months. Partial replacement often allows quicker movement, though it may carry a higher chance of later surgery if arthritis spreads. Total replacement usually provides dependable pain relief for severe disease. Evidence suggests modern implants commonly last 15 to 20 years, but age, activity, weight, alignment, and infection risk affect revision rates. No option guarantees a pain-free knee.

Cost data needs caution. Hospital fees, physical therapy, imaging, implant costs, and lost work can change the final bill. Computer assistance may improve alignment in selected cases, but its extra cost does not always produce better long-term relief. That finding is easy to overlook. A surgeon should explain local revision data, expected walking milestones, and possible complications, not just average outcomes. My comparison would remain imperfect without patient-specific information. The “best” operation is usually the one matching the damaged compartment, bone quality, lifestyle, and realistic recovery goals. Pain scores matter. So does function.