Partial vs Total Knee Replacement:
His honest assessment Framework

Every week, patients walk into his clinic at Namaha Healthcare in Kandivali with the same question: "Doctor, someone told me I need a full knee replacement. But I heard there is also a partial option. Which one do I actually need?"

This is one of the most important questions in orthopedics, because the answer changes everything: the size of the surgery, the amount of bone removed, the recovery timeline, and how the knee feels for the rest of your life.

He shares exactly how he thinks through this decision. No marketing, no oversimplification. Just the clinical framework He uses every day.

First, Understand Your Knee Compartments

Your knee is not a single joint surface. It has three compartments:

• Medial compartment: The inner side of your knee (where most arthritis starts)
• Lateral compartment: The outer side
• Patellofemoral compartment: Underneath the kneecap

In many patients, cartilage damage begins in the medial compartment first. The other two compartments may remain perfectly healthy for years. This is the scenario where partial knee resurfacing becomes a real option.

The Case for Partial Knee Resurfacing (Joint Preservation)

A partial knee replacement, also called unicompartmental knee arthroplasty, replaces only the single damaged compartment. Everything else stays: your healthy cartilage in the other two compartments, your bone stock, and most critically, your cruciate ligaments (ACL and PCL).

Why does this matter so much? Because your ACL and PCL are the ligaments that give your knee its natural sense of position (proprioception). When you walk down stairs or navigate uneven ground, your brain uses feedback from these ligaments to know exactly where your knee is in space. Remove them, and the knee feels slightly "foreign," slightly mechanical. Keep them, and patients consistently tell him it feels like their original knee.

Here is what partial resurfacing gives you:

• Preservation of 2/3rd of your bone and cartilage
• Native ACL and PCL remain intact
• Smaller incision (3 to 4 inches vs 7 to 8 inches)
• Less blood loss during surgery
• Faster return of active knee flexion (bending)
• A more natural-feeling knee during daily activities
• If a revision is ever needed, converting a partial to a total is simpler than revising a total

The Case for Total Knee Replacement

Total knee replacement is the right answer when arthritis has spread across multiple compartments. If your medial, lateral, and patellofemoral surfaces are all damaged, replacing only one compartment will not solve your pain. You will still have bone grinding on bone in the other areas.

Total replacement is also necessary when:

• Your ligaments (ACL/PCL) are damaged or deficient
• You have significant deformity (severe bowing or knock-knee)
• Your knee has lost most of its range of motion
• There is inflammatory arthritis (like rheumatoid arthritis) affecting the entire joint

A total knee replacement is a proven, excellent surgery. he performs them regularly using high flexion implants and his Minimally Invasive Rapid Recovery Protocol. Patients walk within hours and recover quickly. The key is knowing when total is the right call and when partial is the better choice.

His Assessment Framework: How He Decides

When a patient comes to him with knee arthritis, here is the exact process he follows:

Step 1: Weight-Bearing X-Rays

Standard X-rays taken while lying down can be misleading because the joint space opens up when there is no weight on the knee. He always reviews standing, weight-bearing films. These show the true extent of cartilage loss under load.

Step 2: Compartment Mapping

He looks at each of the three compartments independently. If only one compartment shows bone-on-bone contact and the other two have preserved joint space, partial replacement is on the table.

Step 3: Ligament Assessment

He physically examines the ACL and PCL using standard clinical tests (Lachman test, posterior drawer). If these ligaments are intact and functional, partial replacement remains viable. If they are torn or stretched, total replacement is the safer option.

Step 4: Deformity Check

He measures the degree of varus (bowleg) or valgus (knock-knee) deformity. Mild deformity can be corrected with partial replacement. Severe deformity typically requires total replacement for proper realignment.

Step 5: Range of Motion Evaluation

If the patient has good pre-operative flexion (at least 90 degrees) and minimal contracture, partial replacement works well. A very stiff knee with significant flexion contracture usually needs total replacement.

The Mistake He Sees Too Often

Here is something that frustrates him: many patients who qualify for partial knee resurfacing are told they need a total replacement simply because the surgeon does not perform partial replacements regularly. Partial knee surgery using the minimally invasive technique is not something every orthopedic surgeon does. It requires specific training and experience.

He is among the few surgeons in Mumbai performing partial knee replacement using the minimally invasive technique. If you have been told you need a total knee replacement, and your pain seems localized to one side of the knee, he strongly recommends getting a second opinion specifically about partial resurfacing before proceeding.

Real Numbers from his practice

In his practice in Kandivali West, serving patients from Malad, Borivali, and the surrounding areas, he evaluates every single knee replacement candidate for partial resurfacing eligibility. Not everyone qualifies, and that is fine. The important thing is that the assessment is thorough and the recommendation is honest.

He uses KNE3WIZ 3D pre-surgical planning to map the exact extent of your cartilage damage before making a final recommendation. This takes the guesswork out of the equation.