Limb Lengthening and Complex Reconstruction at HSS

Limb Lengthening and Complex Reconstruction at HSS Our orthopaedic surgeons, Drs. Dr. S. Robert Rozbruch and Dr. Austin T. We correct genu valgum, commonly known as knock knee, and genu varum, or bow leg.

Rozbruch, Dr. Fragomen, and Dr. Reif, are world renowned for specialized treatment of limb length discrepancy, deformity and infection. At the Limb Lengthening Service of the Hospital for Special Surgery in New York City, we offer surgical treatments for the correction of upper and lower limb deformities and injuries in adults and children. Fragomen help individuals with orthopaedic issues due to trauma, birth defects, infections or tumors. Our aim is to use the best tools available today — from Taylor Spatial FramesTM to internal lengthening devices, such as the Precice® Intramedullary System and the newest technology, the Novos® Nail. These tools are combined with our doctors' expert surgical techniques to achieve results many patients have only dreamed of. We perform arm and leg lengthening and deformity correction, repair bone nonunions, and treat knee and ankle arthritis with distraction, fusion, or replacement. Whether patients are suffering from arthritis, genetic deformity or the after effect of a traumatic accident, HSS's Limb Lengthening & Complex Reconstruction Service is ready to get them on the road to recovery and a new life.

01/14/2026

Dr Hoellwarth describes an update for Mr M around 9 months from osseointegration. You can see him here walking around his apartment completely on his own. He has been able to return to and get to class independently. As a reminder, he sustained bilateral femur amputations and severe skin burns and a right femur . After extensive care his skin had healed, and we united his fracture using a nail used in compression mode. I then provided him bilateral OPL femur osseointegration and at fit him with and Rush Rogue 2 feet. This was his first day with the legs, six months ago. His determination and hard work has allowed him to achieve an incredible mobility and quality of life!

01/13/2026

Dr Hoellwarth introduces Ms J developed left ankle complex regional pain syndrome after a prior surgery. Her pain was severe, she could not sleep well, and she could barely walk. She agreed she could no longer live this way and wanted osseointegration. Like our other CRPS patients, I marked her pain level prior to imaging to identify where she no longer had pain. Her prosthetic care was provided by Eric Schaffer at A Step Ahead Prosthetics : Custom OI attachment clamp, with an Ossur Proflex foot. Here she is at describing how her life has changed.
.us

01/09/2026
01/06/2026
01/04/2026
01/01/2026
12/30/2025
12/30/2025
12/30/2025
12/28/2025

Dr Hoellwarth describes Ms Y had a right patella fracture when slipping at a restaurant. Like prior examples shown on this page, I placed three screws to stabilize her patella. Let’s hear how her recovery has gone.

12/15/2025
12/12/2025

Address

519 E 72nd Street, Ste 204
New York, NY
10021

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

+12126061415

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We offer solutions for your limb

At the Limb Lengthening Service of the Hospital for Special Surgery in New York City, we offer surgical treatments for the correction of upper and lower limb deformities and injuries in adults and children. Dr. S. Robert Rozbruch and Dr. Austin T. Fragomen help individuals with orthopaedic issues due to trauma, birth defects, infections or tumors. Our aim is to use the best tools available today — from Taylor Spatial FramesTM to internal lengthening devices, such as the Precice® Intramedullary System and the newest technology, the STRYDE nail. These tools are combined with our doctors' expert surgical techniques to achieve results many patients have only dreamed of. We perform arm and leg lengthening and deformity correction, repair bone nonunions, and treat knee and ankle arthritis with distraction, fusion, or replacement. We correct genu valgum, commonly known as knock knee, and genu varum, or bow leg. Whether patients are suffering from arthritis, genetic deformity or the after effect of a traumatic accident, HSS's Limb Lengthening & Complex Reconstruction Service is ready to get them on the road to recovery and a new life.