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Dr. Gordon Zimmermann stands with our first MAKOPLASTY patient at our new Rocky Hill Surgery Center. MAKO is a partial knee replacement that can almost always be done on an outpatient basis without the need for hospitalization. This results in a much shorter recovery time with less pain and greatly increased patient satisfaction.

See below to learn about MAKO and if it is right for you.

Do I Really Need A Full Knee Replacement or Will a Partial Do?
By Gordon A. Zimmermann, MD

Total joint replacements are becoming more and more frequent with our aging population. Presently over one million hip and knee replacements are done annually in the US. Of this total, 700,000 are knee replacements with a projection of 3.5 million knee replacements by 2030. Despite very good final outcomes knee replacement has a deserved reputation as being a painful procedure with many months of recovery. Improved anesthetic blocks with longer acting medications and improved perioperative pain management have made a significant difference but unfortunately not enough. Patients frequently ask us about whether there is a better surgical alternative and for as many as 50% of patients a partial knee replacement offers many major advantages. With state of the art advanced robotic assistance partial knee replacements are much more precise regards sizing, fit and balancing. Neither partial knee replacement nor robotics are anything new. We have done partial knee replacements manually for years but the results and the longevity were not as good as total knee replacements until recently. Today even with manual techniques the retention of implants have been 98%, 95% and 93% at ten, fifteen and twenty years. The first ten year report on the robotic MAKO platform shows over 98 percent retention. MAKO is the number one robotic platform in the industry. The major advantages to you as patients are as follows:

  • The procedure can almost always be done as an outpatient without need for hospitalization.
  • The recovery is measured in weeks not months.
  • The pain is much less.
  • The final range of motion is better.
  • The incision is smaller.
  • Patient satisfaction is much higher.

So why have a painful in-hospital procedure with months of recovery if it is not necessary? Call and schedule an appointment with one of our MAKO trained surgeons and see if you are candidate. You can learn more about robotic partial knee replacement at

On January 7th, we are excited to open our new state-of-the-art surgery center and medical office building in Rocky Hill. In order to prepare for our grand opening, we will be closing our existing Rocky Hill location (1111 Cromwell Ave) from December 31-January 4.

Please note:

  • The Rocky Hill telephone number will remain the same: (860) 529-0295
  • The new location is 150 Enterprise Drive
    • The first left off of 150 Enterprise drive is for the Surgery Center
    • The second entrance takes you to the back of the building to our medical offices and physical therapy

Thank you for your patience during this transition.

Click here to learn what makes the new center the best in the state.

Now hiring for numerous positions - both full and part-time. Hiring for administrative, business office, and medical secretarial. Send your CV and cover letter to: This email address is being protected from spambots. You need JavaScript enabled to view it..

Check out more information career opportunities at the JOIN OUR TEAM section of the website.

This January, OAH is thrilled to open one of the most innovative surgical centers in Connecticut, if not the nation. Dr. Pietro Memmo and Dr. Andrew Caputo have been overseeing all aspects of the facility's development from inception through completion.

In the below question and answer which was recently featured in a national orthopedic publication, Dr. Memmo addresses why this Center is so unique and how every detail was managed to enhance the patient experience.

How has physician involvement helped shape and enhance the final product?

One of the keys to success is we received input from fellow partners, our nursing staff and administrators, and our patients. The success of our original surgical center for over 15 years provided a wealth of knowledge to help create a state-of-the-art surgical center where patients will choose to come, physicians will want to operate, and our staff will want to work. They then coordinated directly, often on a daily basis, with the architect, construction manager, our surgical center administrators, and onsite project manager, the successful completion of the center. Whether it was the selection of the masonry stone, the design choices of the outdoor courtyard, soothing fabric schemes for the furniture, or the OR technologies, Drs. Memmo and Caputo were there to make decisions that were representative of their fellow partners.

Our facility was designed with strong emphasis on employees. Our employees, nurses, and dedicated staff are the heart of what we do. We want them to be in a beautiful setting that is designed to make their jobs easier and is also designed to optimize patient workflow and surgical outcomes. We want our staff to be happy and to work in a setting that is second to none.

The new facility is described as one of the most innovative outpatient surgical facilities in the state, if not the nation. What makes it so distinctive? 

This center exemplifies a modern approach to construction of patient care centers with emphasis on sustainability and being lean and efficient. From the exterior of the building to the landscaping, electrical units, lighting, and finishes, every detail was designed to be environmentally responsible and resource efficient. Even the skin of the building is environmentally efficient and uses Centria panels that have built-in insulation and water drainage systems.

Every possible enhancement was implemented to create a safe and sterile environment that meets the highest standards reserved for brand new hospitals. For example, Epoxy floors and Whiterock walls in the operating rooms create the most innovative surfaces for maintaining a sterile environment. Our Autoclavs and sterilization equipment are the most advanced means for keeping patient infections at near zero percent.

Technology in our 650 square foot operating rooms was critical. The ORs are fitted with ConMed surgical camera systems with two floating 32-inch monitors and one 75-inch Sony 4K monitor; video integration will allow surgeons to view live video while simultaneously viewing MRIs and X-rays from multiple sources; wireless connectivity will allow for a seamless interface of data, images, and video with electronic medical records; the ORs are equipped for live HD video and audio streaming for viewing and recording for educational and training purposes. Robotic surgery will allow for more precise and safer surgeries.

What are some features that were incorporated in the building to enhance the patient experience?

Designed with the patient in mind, down to every last detail: covered walkway to keep patients dry; built on a sloped hill, so no stairs or elevators; physical therapy right on the premises, overlooking a beautiful garden with silhouetted renderings of people in motion; and a snack bar for patients, families, and employees.

We want our patient experience to be second to none. The surgical center is on one floor, so there are no stairs or elevators. The drop-off and pick-up areas have covered entrances to protect against snow and rain. The elegant lobby is more of a family lounge, equipped with large screen televisions, a snack bar, and a patient monitoring system so family members can track the status and progress of the patient’s surgery. A physical therapy area is placed right in the post-operative care unit so therapy can begin immediately after surgery, directly in the recovery area. We have a courtyard with outdoor seating for family members to enjoy as they wait for their loved ones. Lastly, there is natural lighting, high ceilings, and clean finishes throughout the interior of the center to create a soothing and meditative environment.

Patients are shopping around for care, and you're clearly adapting to that trend with this patient-centric facility. What else is Orthopedic Associates of Hartford doing to adapt to overall industry trends?

Orthopedic Associates of Hartford has perhaps the most comprehensive orthopedic urgent care in Connecticut. We are open 7 days a week in Farmington and Glastonbury (and soon in Rocky Hill), and provide an avenue for both new and current patients to have immediate access, specifically for orthopedic emergencies. This will allow patients to avoid going to costly and time-consuming Emergency Rooms. We are confident that we can provide superior orthopedic care above and beyond the services which are provided in other stand-alone facilities that are more equipped to deal with non-orthopedic medical conditions.

How will shifting most procedures to the outpatient setting set OAH up for success?

Industry trends are clearly seeing a shift in most orthopedic surgery moving from costlier inpatient settings to more efficient and less expensive outpatient, same-day venues. This includes spine surgery and joint replacement surgery. These changes are being driven by cost, technology, and advances in anesthesia. Orthopedic Associates of Hartford welcomes this trend and is prepared to meet this demand.

Most orthopedic surgical procedures done in an ambulatory surgical center cost 25% of what hospitals get reimbursed for the same surgical procedure. Ambulatory surgical centers will reduce costs for individuals who often have high deductibles, self-insured employers who find the current cost curve unsustainable, and the federal government itself. Research, our own data, and patient feedback from our existing surgical center in Rocky Hill show that our patient outcomes are superior, our infection rate is near zero, and patient satisfaction is over 98%. We expect to further improve these outcomes in our new state-of-the-art surgical center which will have even better efficiencies, robotics, and more advanced sterilization equipment.

For these reasons, Orthopedic Associates of Hartford is well positioned to satisfy the demands in this ever-evolving healthcare landscape.

Why should other practices/organizations follow your lead?

They will have no choice. The trend towards outpatient surgery is only accelerating and orthopedic practices must have the infrastructure to adapt to this change, or they will fail or be bought out by another healthcare system. Some studies have shown that, in the very near future, over 70% of joint replacements will be done in an ambulatory surgical center.

The federal government and insurers are already reducing the reimbursement for the number of post-operative days that are allowed for surgery. However, with the advancements in anesthesia, robotics, and pre- and post-operative coordination of care, there is no reason why these mandates cannot be met while still maintaining optimal patient outcomes and satisfaction rates. At Orthopedic Associates of Hartford, we have invested in our future to meet these industry changes and hopefully other independent practices will do the same.

Pictured below are some pictures of the new Surgery Center:


The OAH team is thrilled to be in our new Rocky Hill location at 150 Enterprise Drive. It is so much larger than our former site, it is bathed in natural light, and every detail is designed to enhance patient comfort and safety.

Below are some pictures from our first few days. Thank you to the amazing OAH team who has worked so hard to get this new site up and running.

  • Dr. Pietro Memmo is one of the partners and co-project managers of the new surgical center along with Dr. Andrew Caputo. After being involved in all stages from conception through opening the doors, Dr. Memmo is proud to be part of one of the most innovative surgery centers in the nation. He stands in front of beautiful new work of art designed by Kim Zimmermann.
  • Our nursing hub is right in the center and has the most advanced methods of communication so they can monitor patients at every moment. Two or more nurses are assigned to each patient.
  • Tom Acampora, the administrator who oversees business aspects and coordination shares, “The opening has gone very smoothly. It is wonderful to witness our doctors and staff as they are so excited to work in the new site.”
  • Staff have been attending training sessions in our comfortable new staff lounge. The site was designed to be a place where staff would want to come to work each day.
  • Our extremely large operating rooms have the latest robotic systems, tools, and imaging available. There is room for doctors and staff to comfortably navigate. Pressurized rooms ensure that only clean air circulates and maximizes sterility.
  • Our beautiful lobby allows families to comfortably wait. A monitor informs them of the patient’s progress at every step.
  • A large and comfortable physical therapy center is conveniently located on lower level. Physical therapists can come to surgical floor to begin therapy post-surgery.

  • Ricky in sterilization demonstrates the state-of-the-art autoclave system. The layout of the rooms, the procedures in place, and most advanced sterilization technology on the market ensures that infection rates will be close to zero.
  • One of our receptionists, Gayle, greets patients. When asked her favorite aspect of the new center, she says “I love the openness and spaciousness. It is so employee and patient friendly. The doctors did a great job designing it and it gives us a lot of promise to grow.”

We were pleased to be a featured case study in December's New England Journal of Medicine. Thanks to Dr. Schutzer, Dr. Grady-Benson and Mike Cremins, PhD. for their outstanding work and research in this study and article. Learn about how the Connecticut Joint Replacement Institute (CJRI) has been committed to quality and safety improvement initiatives. A rigorous focus on metrics and analytics has allowed them to continuously monitor the delivery of the highest quality care leading to better outcomes, cost-efficient care, lower infection rates, and higher patient satisfaction.

Building a “Hospital-within-Hospital” Model for Joint Replacements New England Journal of Medicine Case Study · December 5, 2018

OAH Team Receives Accolades and Published Article in Prestigious New England Journal of Medicine

Steven F. Schutzer, MD

John C. Grady-Benson, MD

Michael Cremins, PhD, PA-C

The oldest continuously published and prestigious peer reviewed New England Journal of Medicine has selected three OAH team members for their recent publication. Learn how this innovative team has taken an integrated approach to joint replacement that provides superior patient care, reduces costs and improves outcomes.

Read the Study December 5, 2018 New England Journal of Medicine

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