Knee Osteotomy vs Knee Replacement: Who Needs It and When

What is knee osteotomy, and how does it differ from knee replacement?

Knee osteotomy is a bone-realignment surgery that corrects abnormal load distribution across the knee joint, relieving pain and slowing cartilage damage — without removing or replacing the joint. Knee replacement, by contrast, resurfaces or removes the damaged joint entirely. For eligible patients, osteotomy can preserve the natural knee for years before replacement becomes necessary.

Deccan Hardikar Hospital in Pune offers both knee preservation surgery and knee replacement within its Joint Replacement programme, allowing orthopaedic specialists to match the right procedure to each patient's age, activity level, and degree of joint damage.

Who is a candidate for knee osteotomy?

Knee osteotomy is not suitable for every patient with knee pain. Orthopaedic surgeons at Deccan Hardikar Hospital in Pune evaluate several clinical criteria before recommending this knee preservation surgery over replacement.

Typical candidates include patients who:

• Are under 60 years of age and physically active
• Have unicompartmental arthritis — damage confined to one side of the knee (medial or lateral), not the entire joint
• Have a significant varus (bow-legged) or valgus (knock-kneed) deformity causing uneven load
• Have a healthy range of motion with no severe stiffness
• Are at a healthy body weight or willing to achieve it before surgery
• Do not have inflammatory arthritis (e.g. rheumatoid arthritis) affecting the whole joint
• Want to continue high-impact activities such as running, manual work, or sport

How is a knee osteotomy performed?

The most common type performed for medial compartment arthritis is a high tibial osteotomy (HTO), where a wedge of bone is added or removed from the upper tibia to shift body weight away from the damaged compartment. A distal femoral osteotomy (DFO) is used when the outer compartment is affected.

1. Pre-operative planning: Weight-bearing X-rays and alignment measurements determine the exact correction angle required.
2. Bone cut: The surgeon makes a precise cut in the tibia (or femur) under general or spinal anaesthesia.
3. Correction and fixation: The bone is opened or closed to the calculated angle and held in place with a metal plate and screws.
4. Bone graft (if needed): A bone graft or synthetic substitute may fill the gap in an opening-wedge technique.
5. Wound closure and recovery: The patient is mobilised with physiotherapy support, typically within days of surgery.

The procedure is often combined with arthroscopic assessment of the joint to address any cartilage or meniscal issues at the same time.

What is the recovery time for knee osteotomy, and how long does it last?

Recovery from knee osteotomy is longer than from many minimally invasive procedures because the bone must heal fully before full weight-bearing is safe. Patients should plan for a structured rehabilitation period.

• Weeks 1–2: Partial weight-bearing with crutches; wound care and pain management
• Weeks 3–6: Progressive weight-bearing as bone healing is confirmed on X-ray
• Months 2–3: Physiotherapy to restore strength, range of motion, and gait
• Months 4–6: Return to light activity and low-impact sport for most patients
• 6–12 months: Full return to high-demand activities, subject to surgeon clearance

Regarding durability: a well-performed osteotomy in an appropriately selected patient can provide meaningful pain relief and function for 10–15 years in many cases, after which a total knee replacement remains an option. Individual outcomes depend on the degree of correction achieved, patient weight, activity level, and adherence to rehabilitation.

Is osteotomy better than knee replacement for younger patients?

For younger, active patients with partial knee arthritis and a correctable deformity, osteotomy is often the preferred first-line surgical option — not because replacement is inferior, but because implants have a finite lifespan. A patient who receives a total knee replacement at age 40 is statistically more likely to require a complex revision surgery later in life.

Osteotomy preserves the biological joint, allows continued high-impact activity, and does not compromise the technical outcome of a future knee replacement if one becomes necessary. However, it is not a universal solution:

• Patients with advanced tricompartmental arthritis gain little benefit from realignment alone
• Older, less active patients with severe joint damage are better served by joint replacement surgery
• Patients with inflammatory arthritis, significant bone loss, or poor bone quality are generally not osteotomy candidates

The decision is made jointly by the patient and their orthopaedic surgeon after reviewing imaging, functional goals, and overall health status.

When should you see an orthopaedic surgeon about knee pain in Pune?

Not all knee pain requires surgery. However, certain patterns of symptoms indicate that a specialist assessment is warranted without delay.

Seek an orthopaedic consultation if you experience:

• Knee pain on one side of the joint that persists for more than 6 weeks despite rest and anti-inflammatory medication
• Visible bowing of the legs (varus) or knock-kneed alignment (valgus) that is worsening
• Swelling, stiffness, or locking of the knee that limits daily activities
• Pain that wakes you from sleep or is present at rest
• Difficulty climbing stairs, squatting, or walking more than 500 metres without significant discomfort
• A previous diagnosis of early-stage knee arthritis that has not responded to physiotherapy or injections

Deccan Hardikar Hospital in Pune — a NABH Pre-Accredited superspeciality centre — offers orthopaedic consultations for knee alignment assessment, imaging review, and surgical planning. Use the booking form on this page to schedule an appointment.

How does Deccan Hardikar Hospital in Pune approach knee preservation and replacement?

Deccan Hardikar Hospital in Pune is a NABH Pre-Accredited superspeciality orthopaedic and referral centre with five decades of surgical experience serving Western Maharashtra. The hospital's Joint Replacement programme covers the full spectrum of knee care — from knee preservation surgery such as osteotomy through to robotic joint replacement for advanced arthritis.

The orthopaedic team evaluates each patient individually, using weight-bearing alignment X-rays and functional assessments to determine whether osteotomy, partial replacement, or total knee replacement is the most appropriate pathway. The hospital's patient-centric approach prioritises transparent cost communication and rehabilitation support from the day of admission.