How Does Robotic-Assisted Hip Replacement Work? A Look at MAKO® Robotic Hip Surgery

How Does MAKO Robotic Hip Replacement Work?

MAKO robotic-assisted hip replacement combines advanced CT-based planning with real-time surgical guidance to personalize your procedure. Your surgeon remains in complete control while robotic technology helps optimize implant positioning, restore hip biomechanics, and deliver precision tailored to your unique anatomy.

If you've been told you need a hip replacement, you've probably heard about robotic-assisted surgery. One of the most common questions I hear from patients is: "Does the robot perform my surgery?" The answer is no.

The surgery is always performed by your orthopedic surgeon. The MAKO robotic system is an advanced tool that helps your surgeon perform the operation with exceptional precision based on your unique anatomy.

As a fellowship-trained hip and knee replacement surgeon, I use MAKO robotic-assisted technology to help personalize every hip replacement for each patient.

Step 1: A CT Scan Helps Create Your Personalized Surgical Plan

Unlike conventional hip replacement, MAKO begins before you ever enter the operating room.

Before surgery, you'll have a specialized CT scan of your hip.

This scan creates a detailed three-dimensional model of your pelvis and femur, allowing me to:

• Evaluate your anatomy in detail

• Measure leg lengths

• Assess hip offset

• Plan implant size

• Determine the ideal implant position

• Identify bone deformities or arthritis patterns before surgery

Rather than using standard measurements, every surgical plan is customized specifically for you.

Step 2: Planning Before Surgery

Using the CT scan, I build your surgical plan before the operation even begins.

This includes deciding:

• The ideal cup position

• Implant orientation

• Stem size

• Restoration of hip biomechanics

• Leg length goals

• Hip stability throughout motion

Instead of making many of these decisions during surgery, much of the planning has already been completed in advance.

Step 3: Registration in the Operating Room

Once surgery begins, the robotic system matches your actual anatomy to the CT scan.

This process—called registration—ensures the computer knows the exact position of your pelvis and femur throughout the procedure.

Think of it like a GPS calibration before navigation begins.

Step 4: Real-Time Guidance During Surgery

The robotic system continuously tracks the position of your hip throughout the operation.

During surgery it provides real-time information about:

• Implant position

• Hip stability

• Leg length

• Hip offset

• Range of motion

• Component alignment

This information helps me make precise adjustments before the implants are permanently placed.

Step 5: Robotic Assistance During Bone Preparation

One of the biggest advantages of MAKO is its ability to help prepare the bone accurately.

The robotic arm provides haptic (touch-sensitive) guidance, which creates a defined surgical boundary.

This means the system helps prevent instruments from moving outside the planned area while I remain in complete control of every movement.

The robot does not make decisions or perform surgery independently.

Step 6: Implant Placement

After the bone has been prepared, the implants are inserted according to the preoperative plan.

Throughout implantation, MAKO continues providing measurements that allow me to verify:

• Cup orientation

• Stem position

• Leg length restoration

• Hip stability

• Implant alignment

If adjustments are needed, they can be made immediately before completing the operation.

What Are the Benefits of MAKO Robotic Hip Replacement?

Robotic assistance offers several potential advantages compared with conventional hip replacement.

Potential benefits include:

• More accurate implant positioning

• Improved restoration of leg length

• Better recreation of normal hip biomechanics

• Improved consistency between surgeries

• Real-time data during the procedure

• Personalized planning based on your anatomy

Numerous studies have shown robotic-assisted total hip replacement improves the accuracy and precision of implant placement compared with conventional techniques. Whether this translates into measurable improvements in long-term function or implant longevity is still being studied, but accurate component positioning is an important factor in reducing complications such as instability, impingement, and abnormal wear.

Does the Robot Replace the Surgeon?

Absolutely not.

This is probably the biggest misconception about robotic surgery.

The robot:

• Does not perform the operation

• Does not make decisions

• Does not replace surgical experience

Instead, it acts as an advanced surgical tool that gives your surgeon additional information and precision throughout the operation.

The outcome still depends on your surgeon's judgment, experience, and technical skill.

Why I Use MAKO Robotic Hip Replacement

I chose to incorporate MAKO robotic-assisted surgery because I believe precision matters.

Every patient's anatomy is different, and robotic technology allows me to personalize implant positioning rather than relying solely on standard measurements.

Combined with my muscle-sparing direct anterior hip replacement technique, MAKO technology helps me perform surgery with careful planning, real-time feedback, and individualized precision.

Is MAKO Right for Everyone?

Not every patient requires robotic-assisted surgery, and not every hospital has access to this technology.

During your consultation, we'll discuss:

• Your arthritis

• Your anatomy

• Your activity level

• Your goals after surgery

• Whether robotic-assisted hip replacement is the best option for you

The most important factor is choosing the surgical approach and technology that best fits your individual situation.

Schedule a Consultation

If you're considering MAKO robotic hip replacement in Danbury, Southbury, or New Milford, I'd be happy to discuss whether you're a candidate.

Together, we'll review your X-rays, discuss your goals, and create a personalized treatment plan designed to help you return to the activities you enjoy.

Frequently Asked Questions

Is MAKO robotic hip replacement more accurate?

Multiple studies have shown MAKO robotic-assisted hip replacement improves the accuracy and consistency of implant positioning compared with conventional techniques.

Does the robot perform the surgery?

No. Your surgeon performs the entire operation. The robotic system provides planning, guidance, and real-time measurements during surgery.

Do I need a CT scan before MAKO hip replacement?

Yes. A CT scan is required to create your personalized three-dimensional surgical plan.

Does robotic hip replacement mean a faster recovery?

Recovery depends on many factors, including your overall health, surgical technique, rehabilitation, and adherence to postoperative instructions. Robotic assistance is designed to improve surgical precision rather than guarantee a faster recovery.