Knee Replacement

Knee Replacement Surgery

If chronic knee pain makes it difficult to walk, climb stairs, or enjoy daily activities, you are not alone. More than 700,000 Americans undergo knee replacement surgery each year, making it one of the most common and successful orthopedic procedures. Thanks to advanced surgical techniques and modern implants, most patients experience lasting pain relief, restored mobility, and a better quality of life.

At Princeton Brain, Spine & Orthopedics, our board-certified orthopedic surgeons specialize in comprehensive knee care. From advanced diagnostic testing and non-surgical treatments to total and partial knee replacement surgery, our goal is to help you move better, reduce pain, and return to the activities you love.

What Is Knee Replacement Surgery?

Knee replacement surgery removes damaged cartilage and bone from the knee joint and replaces them with durable artificial implants. These implants, made of metal and plastic, are designed to mimic the movement of a natural knee joint while restoring function and reducing pain.

During surgery, your orthopedic surgeon carefully resurfaces the femur, tibia, and sometimes the patella before placing the new components. Most patients notice dramatic improvements: chronic pain resolves, walking becomes easier, stairs are less challenging, and long-abandoned activities often become possible again.

When Is Knee Replacement Surgery Recommended?

Knee replacement surgery is a decision you and your surgeon make together. You may be a candidate if:

• Severe arthritis pain limits your ability to walk, climb stairs, or complete household tasks
• Pain keeps you awake at night
• Conservative treatments (physical therapy, medications, injections, or activity modification) no longer provide relief
• Stiffness and instability prevent you from enjoying life

At PBSO, we offer a full range of non-surgical treatments before recommending surgery. If these options fail, knee replacement provides a path toward regaining mobility and independence.

Types of Knee Replacement Surgery

Different procedures address different degrees of knee damage. Our surgeons tailor your treatment to your needs:

Procedure Type	Surgery Duration	Hospital Stay	Recovery Time	Best Candidates
Total Knee Replacement	1–2 hours	Overnight	3–6 months	Patients with widespread arthritis damage
Partial Knee Replacement	45–90 minutes	Same day or overnight	6–12 weeks	Patients with arthritis in only one compartment, often younger
Robotic-Assisted Knee Replacement	1–2.5 hours	Overnight	3–6 months	Patients seeking advanced precision in implant placement

Total Knee Replacement

The most common procedure, total knee replacement resurfaces all three compartments of the knee. This is the best option for patients with widespread arthritis. Recovery typically spans 3–6 months, with excellent pain relief and restored function for low-impact activities like walking, cycling, and swimming.

Partial Knee Replacement

This less invasive option replaces only the damaged compartment of the knee, preserving healthy cartilage and bone. Patients often benefit from smaller incisions, quicker recovery, and a more natural knee feel. Most return to normal activities within 6–12 weeks.

Robotic-Assisted Knee Replacement

This advanced technique uses 3D imaging and robotic precision to improve implant placement and alignment. While still relatively new, it shows promise for faster recovery and long-term outcomes.

Ideal Candidates for Knee Replacement

Most patients undergoing knee replacement are between 50-80 years old, but age alone does not determine candidacy. You may be considered if you have:

• Osteoarthritis, rheumatoid arthritis, or post-traumatic arthritis causing bone-on-bone contact
• Severe stiffness and pain that no longer respond to non-surgical care
• Overall good health to tolerate surgery and rehabilitation

Successful recovery also requires mental readiness and realistic expectations. Your new knee won’t feel exactly like it did before arthritis, but it can greatly reduce pain and improve mobility.

What to Expect During Surgery

Knee replacement surgery usually takes 1-2 hours and is performed under general or spinal anesthesia. During the procedure, your surgeon removes damaged cartilage and bone from the knee joint and replaces them with a precisely fitted implant. Most patients stay in the hospital overnight for monitoring. Walking with assistance typically begins the same day or the following morning.

Recovery

• 0-2 weeks: Physical therapy begins within 24 hours to restore movement. Patients use a walker or crutches for support.
• 2-6 weeks: Pain and swelling decrease, mobility improves, and many return to daily activities.

3-6 months: Most patients regain near-full function and resume low-impact activities such as walking, swimming, or cycling.

• Up to 12 months: Some patients continue to notice improvements in strength and flexibility, with full recovery taking up to a year.

Frequently Asked Questions About Knee Replacement

Why Choose Princeton Brain, Spine & Orthopedics for Knee Replacement

• Expert orthopedic surgeons specializing in joint replacement
• Advanced technology, including robotic-assisted surgery
• Comprehensive care, from diagnostics to rehabilitation
• Personalized treatment plans tailored to your goals
• Convenient locations across New Jersey and Pennsylvania

Take the Next Step Toward Pain-Free Living

If knee pain is limiting your life and non-surgical treatments haven’t helped, knee replacement surgery at Princeton Brain, Spine & Orthopedics may be the solution.

Call us today or request an appointment online to schedule your consultation and begin your journey toward restored mobility and lasting relief.