Study backs Icarus Medical knee brace for patellofemoral osteoarthritis

A peer-reviewed study of 113 patients and 134 knees found the Icarus Ascender Knee Brace cut pain and improved function after four weeks in people with patellofemoral osteoarthritis or related multicompartment knee arthritis. The findings add clinical evidence for anterior knee unloading, a less-studied treatment area for common front-of-knee pain.

Why it matters: - Patellofemoral osteoarthritis is a common cause of anterior knee pain and movement limits. - The study adds peer-reviewed evidence for a brace designed to unload the front of the knee. - The results may expand noninvasive treatment options for patients who have not found enough relief from other conservative care.

What happened: - A peer-reviewed clinical study published in Arthroscopy, Sports Medicine, and Rehabilitation evaluated the custom-fit Icarus Ascender Knee Brace. - Researchers studied 113 patients representing 134 knees. - Patients had patellofemoral osteoarthritis or multicompartment knee osteoarthritis involving the patellofemoral joint. - Participants used the brace during daily activities for four weeks. - Outcomes were measured before and after the bracing period with validated patient-reported tools. - The study involved investigators affiliated with Rush University Medical Center, Scripps Clinic, Yale School of Medicine, Brigham and Women’s Hospital, the University of California San Diego, and Hospital for Special Surgery.

The details: - Mean patient age was 53.5. - The study population was 56.6% male and 43.4% female. - Twenty-one patients, or 18.6% of the group, were treated on both knees. - Visual Analog Scale pain scores fell by an average of 4.04 points, a 59.3% improvement. - Average pain scores dropped from 6.73 to 2.69 on a 10-point scale. - KOOS JR scores improved by an average of 21.62 points. - Pain improved in 93.3% of knees during the bracing period. - 86.2% of patients who started with moderate or worse pain reported improvement. - 66.4% of knees met or exceeded the Minimum Clinically Important Difference for KOOS JR. - Among 71 patients with moderate or worse stiffness, pain and functional limits at baseline, 87.3% reached the Minimum Clinically Important Difference for KOOS JR. - Improvements in KOOS JR, pain, stiffness, activities of daily living and VAS pain were statistically significant at P < .001. - Of the 109 patients who reported wear frequency, 56.9% wore the brace at least four days per week. - Another 33.9% wore the brace daily. - More frequent brace use was linked to greater improvement in stiffness. - 75.2% of patients said activity improved while wearing the brace, including 12.4% who reported significant improvement. - Patients used the brace for exercise, sports, household and childcare tasks, work, and other daily activities.

Between the lines: - Traditional unloader-brace research has focused mostly on medial or lateral tibiofemoral osteoarthritis, not the patellofemoral joint. - The study helps fill that evidence gap by testing anterior knee unloading in a patient group with fewer targeted bracing options. - The findings are strongest for short-term outcomes, so longer-term durability still needs follow-up. - Dave Johnson, founder and CEO of Icarus Medical, said the publication helps build the clinical evidence behind anterior knee unloading and may help clinicians identify which patients benefit most. - Study co-author and orthopaedic surgeon Adam B. Yanke said patellofemoral unloading is still unfamiliar to many clinicians.

What's next: - The study authors concluded that prescribing an anterior knee unloader brace led to moderate compliance and improved pain and function for most patients at short-term follow-up. - Icarus Medical is using the publication to support broader clinical adoption of the Ascender and the wider unloading-brace category. - The full study, “Anterior Knee Unloader Brace Prescription Yields Moderate Compliance Rates and Improved Clinical Function in Patients with Patellofemoral Pain,” is available in Arthroscopy, Sports Medicine, and Rehabilitation. - More information is available from Icarus Medical and its social channels: LinkedIn, Instagram, Facebook, YouTube, and X.

The bottom line: - The study gives the Icarus Ascender Knee Brace peer-reviewed support as a short-term option for reducing pain and improving function in people with patellofemoral osteoarthritis.