HTO Surgery (High Tibial Osteotomy): A Knee-Saving Procedure for Early Arthritis- By Dr. Balaraju Naidu, Robotic Orthopedic Surgeon, ONUS Robotic Hospitals
Introduction
Knee pain caused by early arthritis can significantly affect mobility and quality of life. While many people assume that knee replacement is the only solution, younger and active patients often have another effective optionβHigh Tibial Osteotomy (HTO).
HTO is a joint-preserving surgical procedure that corrects the alignment of the knee, redistributes body weight, relieves pain, and delays the need for total knee replacement.
At ONUS Robotic Hospitals, Dr. Balaraju Naidu specializes in advanced orthopedic procedures, including HTO surgery, helping patients maintain their natural knee joint for many years.
What is High Tibial Osteotomy (HTO)?
High Tibial Osteotomy is a surgical procedure performed to correct the alignment of the shinbone (tibia).
When arthritis affects only one side of the kneeβusually the inner (medial) compartmentβthe knee becomes bow-legged (varus deformity). This uneven alignment places excessive pressure on the damaged cartilage.
HTO realigns the leg so that body weight is shifted to the healthier side of the knee, reducing pain and slowing arthritis progression.
Instead of replacing the joint, HTO preserves the patient’s natural knee.
Who Needs HTO Surgery?
HTO is usually recommended for:
- Early-stage knee osteoarthritis
- Arthritis affecting only one side of the knee
- Bow-legged deformity (Varus Knee)
- Active adults below 60 years
- Patients who wish to delay knee replacement
- Individuals involved in sports or physically demanding jobs
It is especially useful for younger patients who still have healthy cartilage in part of the knee.
Common Symptoms That May Indicate the Need for HTO
Patients may experience:
- Persistent knee pain while walking
- Pain on the inner side of the knee
- Bow-legged appearance
- Difficulty climbing stairs
- Swelling after activity
- Knee stiffness
- Reduced walking distance
- Pain during exercise
If these symptoms continue despite medication and physiotherapy, an orthopedic evaluation is recommended.
Causes of Early Knee Arthritis
Several factors can contribute to early knee arthritis:
- Previous ligament injuries
- Meniscus damage
- Obesity
- Sports injuries
- Aging
- Bow-leg deformity
- Genetic predisposition
- Heavy physical work
Correcting the alignment early helps protect the remaining cartilage.
How is HTO Surgery Performed?
The procedure generally involves:
Clinical Assessment
The orthopedic surgeon evaluates symptoms and knee alignment.
Imaging
Standing X-rays, long-leg alignment X-rays, MRI (when necessary), and other imaging help determine the severity.
Surgical Planning
The amount of correction needed is carefully calculated.
Bone Realignment
A controlled cut is made in the upper tibia.
Correction
The bone is gently opened or closed to restore proper alignment.
Fixation
The corrected position is stabilized using a metal plate and screws.
Over time, the bone heals naturally in its corrected position.
Benefits of HTO Surgery
HTO offers several advantages:
- Preserves the natural knee joint
- Relieves pain
- Improves walking ability
- Corrects bow-legged deformity
- Delays total knee replacement
- Helps maintain an active lifestyle
- Improves knee function
- Allows better participation in sports and daily activities
- Preserves healthy cartilage
Recovery After HTO Surgery
Recovery varies from patient to patient.
Generally:
- Walking with support begins within a few days.
- Physiotherapy starts early to improve mobility.
- Bone healing usually takes several weeks.
- Most patients gradually return to daily activities over the next few months.
- Full recovery depends on age, bone healing, and rehabilitation.
Following your surgeon’s rehabilitation plan is essential for the best outcome.
Is HTO Better Than Knee Replacement?
HTO and knee replacement serve different purposes.
HTO is ideal when:
- Arthritis affects only one compartment.
- The patient is relatively young.
- The knee ligaments are healthy.
- The patient wants to remain active.
Total Knee Replacement is preferred when:
- Arthritis affects the entire knee.
- There is severe cartilage damage.
- Pain is disabling despite all treatments.
Your orthopedic surgeon will recommend the most suitable procedure after evaluation.
Risks of HTO Surgery
Like any surgery, HTO carries some risks, including:
- Infection
- Blood clots
- Delayed bone healing
- Nerve or blood vessel injury
- Persistent pain
- Stiffness
- Hardware irritation
- Need for future knee replacement
These risks are minimized with proper surgical planning and postoperative care.
Can HTO Prevent Knee Replacement?
HTO cannot permanently prevent arthritis, but it can significantly delay the need for total knee replacement.
Many patients enjoy improved knee function and pain relief for several years after surgery, especially when combined with:
- Weight management
- Physiotherapy
- Muscle strengthening
- Healthy lifestyle habits
Tips to Protect Your Knees
- Maintain a healthy body weight.
- Exercise regularly.
- Strengthen thigh muscles.
- Avoid high-impact activities if advised.
- Wear supportive footwear.
- Treat knee injuries promptly.
- Follow your orthopedic surgeon’s recommendations.
When Should You See an Orthopedic Surgeon?
Seek medical attention if you have:
- Persistent knee pain
- Bow-legged deformity
- Difficulty walking
- Swelling that does not improve
- Knee instability
- Pain limiting daily activities
- Reduced mobility despite treatment
Early diagnosis allows more treatment options and may help preserve your natural knee joint.
Conclusion
High Tibial Osteotomy (HTO) is an excellent knee-preserving surgical option for younger and active patients with early knee arthritis affecting one side of the knee. By correcting alignment, reducing pain, and protecting healthy cartilage, HTO can significantly improve quality of life while delaying the need for total knee replacement.
If you have persistent knee pain or bow-legged deformity, consult an experienced orthopedic surgeon to determine whether HTO is the right treatment for you.
For Appointments:
Dr. Balaraju Naidu, Robotic Orthopedic Surgeon
ONUS Robotic Hospitals β Hyderabad
π link: contact-us or book-appointment
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