Spine Associates of NYC Expands Its Premier Manhattan Spine Surgery Practice to New Jersey, Bringing World-Class Spine Care to Morris County

HANOVER, N.J., Sept. 21, 2026 /PRNewswire/ -- Spine Associates of NYC, the Upper East Side spine surgery practice serving patients throughout the New York metropolitan area, tri-state region, nationally and internationally, has expanded into New Jersey with the opening of Spine Associates of New Jersey, located at 218 Ridgedale Avenue in Cedar Knolls.

The renowned Upper East Side (Manhattan, NY) spine surgery practice brings its team of leading orthopedic spine surgeons and neurosurgeons to Cedar Knolls, offering New Jersey patients greater access to the same highly specialized care available in Manhattan.

The new location brings the expertise of the practice's Manhattan surgeons closer to New Jersey patients—offering access to sophisticated spine care without the commute into New York City. From herniated discs, spinal stenosis and chronic neck and back pain to scoliosis, complex spinal deformity and revision surgery, patients can now consult with the same specialists who have built their practices caring for patients in Manhattan.

The expansion isn't about recreating the New York practice in New Jersey. It's about extending it. New Jersey patients gain convenient local access to an established team of board-certified orthopedic spine surgeons with decades of combined experience, while benefiting from the highly personalized approach to diagnosis, treatment and long-term follow-up for which Spine Associates is known.

Sean McCance, MD, founder and director of Spine Associates of NYC and NJ, is a board-certified orthopedic spine surgeon and Co-Director of Spine Surgery at Mount Sinai Hospital. Having personally performed more than 7,000 spine surgeries, Dr. McCance treats conditions ranging from herniated discs and spinal stenosis to scoliosis, complex reconstruction and revision surgery. His philosophy emphasizes exhausting appropriate nonsurgical options before recommending an operation.

"Patients from New Jersey have been coming to our Manhattan practice for years, and we wanted to bring that same level of specialized spine care closer to where they live," said Sean McCance, MD, founder and director of Spine Associates. "This isn't a different practice or a different standard of care—it's the same surgeons, the same expertise and the same highly personalized approach our patients have come to expect from us in New York. The difference is that now, for many of our patients, exceptional spine care is much closer to home."

Baron Lonner, MD is a nationally and internationally recognized orthopedic spine surgeon whose focuses on scoliosis and complex spinal deformity. With decades devoted to treating spinal curvature disorders in children, adolescents and adults, Dr. Lonner brings highly specialized expertise to patients with some of the most challenging deformity cases.

David Matusz, MD specializes in spinal reconstruction, disc replacement, spinal stenosis, degenerative conditions and complex spine revision surgery. His extensive surgical experience and focus on restoring function make him an important resource for patients facing both common and complicated spinal disorders.

John Caridi, MD brings the perspective of a fellowship-trained neurosurgeon specializing in complex spine surgery. His expertise includes scoliosis, kyphosis, sagittal imbalance, advanced spinal reconstruction and difficult spine revision cases, combining sophisticated surgical planning with an understanding of the neurological structures surrounding the spine.

Peter Frelinghuysen, MD is an orthopedic spine surgeon whose training includes both an orthopedic residency and spine surgery fellowship at Hospital for Special Surgery. Known for a highly individualized and hands-on approach, Dr. Frelinghuysen treats cervical and lumbar spine conditions and personally manages patients throughout the surgical process and long-term follow-up.

For patients who previously traveled into Manhattan for highly specialized spine care, the Cedar Knolls office provides a more convenient alternative—the same surgeons, the same depth of expertise and the same individualized approach, now available in New Jersey.

Spine Associates of New Jersey
218 Ridgedale Ave, Suite 11352
Cedar Knolls, NJ 07927
(973) 657-6771

Spine Associates of NYC 
1155 Park Avenue, Suite E
New York, NY 10128
(212) 360-6500

SOURCE Spine Associates of New Jersey