Distal Femoral Osteotomy Treatment
Distal femoral osteotomy is a joint-preservation procedure designed to correct abnormal knee alignment and redistribute weight away from a damaged area of the knee joint. It is primarily used to treat patients with valgus (knock-kneed) deformity combined with lateral compartment arthritis — a condition in which the outer side of the knee bears excessive load, accelerating cartilage breakdown and causing progressive pain. Rather than replacing the entire joint, an osteotomy reshapes the lower end of the femur to shift the mechanical axis of the leg, transferring weight from the worn lateral compartment onto the healthier medial (inner) side of the knee. For appropriately selected patients, this procedure can significantly relieve pain, improve function, and delay or eliminate the need for total knee replacement — often by a decade or more.
Dr. Jonathan Glashow is a board-certified orthopedic surgeon and Clinical Associate Professor of Orthopedic Surgery at NYU Grossman School of Medicine, widely recognized as one of New York City’s top knee specialists. With over 30 years of experience, more than 15,000 orthopedic procedures performed, and published research in the Journal of Bone and Joint Surgery on knee anatomy and function, he brings the precision and joint-preservation focus that osteotomy procedures demand. Distal femoral osteotomy requires detailed preoperative planning — including full-length standing X-rays, precise angular calculations, and intraoperative correction — to restore the mechanical axis of the leg accurately. As Chief Medical Officer for the New Jersey Devils and Philadelphia 76ers, Dr. Glashow has managed complex knee alignment problems in athletes whose careers depend on preserving the native joint. Named a Castle Connolly Top Doctor every year since 2000, he performs distal femoral osteotomy at his Upper East Side practice in New York City.
Understanding Knee Arthritis and When Osteotomy Is Indicated
There are two major types of knee osteoarthritis that commonly affect middle-aged and younger active patients. Post-traumatic osteoarthritis develops in patients who have had a previous knee injury — often during young adulthood — and may have undergone meniscus removal or other surgery that altered the joint mechanics. Non-traumatic osteoarthritis occurs in patients with no prior injury history, where the cartilage breakdown is driven primarily by genetic factors, alignment, and cumulative load over time.
The word osteotomy literally means “cutting of the bone.” In a distal femoral osteotomy, Dr. Glashow makes a precise cut in the lower end of the femur and reshapes the bone to correct the leg’s alignment, shifting weight off the damaged side of the knee joint. This procedure is most effective for patients with early- to mid-stage osteoarthritis affecting primarily one side of the knee — typically the lateral compartment — where redirecting load onto the healthier cartilage can relieve pain and significantly extend the functional life of the joint.
Goals of Distal Femoral Osteotomy
Distal femoral osteotomy is designed to achieve three primary goals:
- Redistribute weight — transfer load from the arthritic portion of the knee onto healthier cartilage
- Correct alignment — restore the leg’s mechanical axis to improve joint mechanics and reduce abnormal stress
- Preserve the native joint — prolong the functional life of the knee and delay or avoid the need for total knee replacement
Who Is a Candidate for Distal Femoral Osteotomy?
Distal femoral osteotomy may be indicated for patients with:
- Lateral compartment arthritis — painful arthritis affecting the outer side of the knee
- Post-surgical lateral pain — persistent lateral knee pain following meniscus removal or cartilage surgery
- Valgus deformity — younger patients with significant knock-kneed alignment
- Sports-related joint damage — painful damage to one compartment of the knee from prior athletic injury
Dr. Glashow evaluates each patient with a comprehensive clinical examination, full-length standing X-rays, MRI, and a detailed review of prior treatments to determine whether osteotomy is the right approach. Patients with diffuse multi-compartment arthritis, significant stiffness, or certain ligament instabilities may be better served by total knee replacement or another procedure — and Dr. Glashow discusses all available options during the consultation.
Schedule a Distal Femoral Osteotomy Consultation in New York City
If you have been diagnosed with lateral compartment knee arthritis, have persistent lateral knee pain after prior surgery, or have been told you need a knee replacement but want to explore joint-preservation alternatives, Dr. Glashow can evaluate whether distal femoral osteotomy is right for you. With same-day imaging, comprehensive alignment analysis, and the full range of knee treatment options available, his Upper East Side practice offers the kind of expert evaluation that active patients deserve before committing to a surgical plan. Contact our office to schedule your consultation — we accept out-of-network insurance benefits and offer same-day, after-hours, and weekend appointments.
Frequently Asked Questions About Distal Femoral Osteotomy
What is the difference between distal femoral osteotomy and high tibial osteotomy?
Both procedures are knee-preservation osteotomies that correct leg alignment and redistribute load within the knee, but they address different deformities. Distal femoral osteotomy corrects valgus (knock-kneed) alignment by reshaping the thighbone just above the knee and is typically used for lateral compartment arthritis. High tibial osteotomy corrects varus (bow-legged) alignment by reshaping the shinbone just below the knee and is typically used for medial compartment arthritis. Dr. Glashow determines which procedure is appropriate based on the direction of malalignment and the location of the cartilage damage.
Is distal femoral osteotomy better than a knee replacement?
For the right patient, yes — but they treat different situations. Distal femoral osteotomy is most appropriate for younger, active patients with arthritis confined to one compartment of the knee who want to preserve their native joint and delay the need for replacement. Total knee replacement is typically reserved for older patients or those with more advanced, multi-compartment arthritis. An osteotomy allows patients to return to high-impact activities that a knee replacement would not permit, and it preserves the option to have a knee replacement later if needed. Dr. Glashow discusses both options during the consultation to help each patient understand which is the best fit for their specific situation.
What does the recovery look like after distal femoral osteotomy?
Recovery typically involves a period of protected weight-bearing — usually six to eight weeks on crutches — to allow the bone to heal in its new position. A structured physical therapy program begins shortly after surgery and progresses through range-of-motion recovery, strengthening, and return to activity over several months. Most patients return to daily activities within three to four months and to sports or demanding physical activity between six and nine months after surgery, depending on the extent of correction and individual healing. Dr. Glashow monitors bone healing with follow-up X-rays and adjusts rehabilitation timelines accordingly.
How long will the results of a distal femoral osteotomy last?
Published studies show that distal femoral osteotomy can provide significant pain relief and functional improvement for 10 to 15 years or longer in appropriately selected patients. The durability of the result depends on the severity of arthritis at the time of surgery, the accuracy of the alignment correction, the patient’s activity level, and individual factors like weight and overall joint health. Even after the benefits of an osteotomy eventually diminish, the procedure does not preclude future total knee replacement — and in many cases makes a later replacement easier to perform successfully.
Can I return to sports after distal femoral osteotomy?
Yes. One of the significant advantages of osteotomy over knee replacement is that patients can return to high-impact and pivoting sports after recovery — including skiing, tennis, running, and contact sports — which are generally not recommended after a knee replacement. Return-to-sport timing depends on individual healing, the extent of correction, and sport-specific demands, and Dr. Glashow works closely with each patient and their physical therapist to develop a safe return-to-activity plan.
Is distal femoral osteotomy covered by insurance?
Distal femoral osteotomy is a medically necessary procedure for appropriately selected patients and is covered by most insurance plans. Dr. Glashow’s office accepts out-of-network insurance benefits and works with patients to verify coverage before surgery, including submitting claims on the patient’s behalf and providing surgical quotes through a dedicated surgical coordinator.
