Orthopaedic Surgical Associates

For over 30 years, the fellowship-trained orthopedic and spine specialists at Orthopaedic Surgical Associates and Merrimack Valley Spine Center have been providing world-class patient care. You can skip the drive to Boston and see a specialist trained at the best institutions; right in Chelmsford or Westford.

Happy Employee Appreciation Day! Today we celebrate our team, whose hard work, compassion, and commitment to providing exceptional care make a difference every day. Thank you for all you do! #EmployeeAppreciationDay #OSAOrtho

Thanks to recent advancements that include robotic-assisted technology, hip and knee replacement patients may see a variety of benefits to their postoperative recovery. Learn more about how Orthopaedic Surgical Associates is transforming joint replacement procedures in our latest article by OSA physician Dr. Steven DiSegna: https://ow.ly/aXEJ50V3MJg

Today, on National Women Physicians Day, we honor the women physicians at OSA who provide expert orthopedic care to our community. Join us in recognizing these exceptional physicians: Dr. Elisabeth R. Gennis, Orthopedic Hand and Upper Extremity Surgeon Dr. Allis Kim, Orthopedic Surgeon and Sports Medicine Specialist #NationalWomenPhysiciansDay #WomenInMedicine #OrthopedicExcellence #OSAOrtho

This February, we celebrate the achievements and contributions of Black Americans in medicine, science, and beyond. Their groundbreaking work continues to inspire and shape the future of healthcare. At Orthopaedic Surgical Associates, we are committed to fostering inclusivity, innovation, and excellence in providing orthopedic care to our diverse community. Join us in recognizing and celebrating Black history, this month and always. #BlackHistoryMonth #HonoringExcellence #OSAOrtho

Get to know Dr. Joseph Fleck, a fellowship-trained foot and ankle surgeon at Orthopaedic Surgical Associates. Dr. Fleck's journey into podiatry and orthopedics began with a desire to make a lasting impact on patients’ quality of life. Read more about Dr. Fleck's background, expertise, and patient philosophy: https://ow.ly/aWlV50UPUuN #FootandAnkleSurgeon

As we return from a day of reflection, remembrance, and celebration of the life of Reverend Dr. Martin Luther King, Jr., we continue our commitment to Dr. King's vision of equality, justice, and peace.

Struggling with debilitating back pain? Dr. Mark Lapp, a fellowship-trained orthopedic spine surgeon at Orthopaedic Surgical Associates, is a leader in the use of AI-personalized implants, an innovation that is transforming spinal fusions and offering patients greater precision and the potential for better outcomes. Discover more here: https://ow.ly/zre050UIyS0

Orthopaedic Surgical Associates is proud to have 9 Castle Connolly 2025 Top Doctors. Castle Connolly Top Doctors represent the top 7% of all US practicing physicians in the country. Please join us in congratulating our outstanding team! Learn more about our physicians selected for Castle Connolly Top Doctors: https://ow.ly/zWR150UHiop #cctopdocs

Orthopaedic Surgical Associates is proud to welcome Dr. Joseph Fleck, a fellowship-trained podiatrist and foot and ankle surgeon. He specializes in all aspects of non-surgical and surgical care of the foot and ankle. Dr. Fleck takes special interest in complicated revision cases such as reconstruction corrective surgery, ankle joint replacement, limb salvage surgery, and arthroscopy. Learn more about Dr. Fleck’s background, https://ow.ly/xW1q50UAqKM