How to Choose orthotic knee joint?

26 May.,2025

 

Knee Orthosis Buying Guide: Tips to Help Doctors Choose the Right ...

When it comes to managing knee conditions and injuries either instead of surgery or as part of recovery after surgery, physicians often rely on knee orthoses (knee braces) to provide their patients with support, stability, and pain relief. However, with various options available in the market, selecting the fitting knee orthosis can be challenging.  

PFC Product Page

In this Knee Orthosis Buying Guide, we will provide physicians with 7 valuable tips to help them choose the most suitable knee orthosis for their patient's needs. We'll also note a few KO options we recommend for your patients. 

Understand the Patient's Diagnosis

Before recommending a knee orthosis, it is crucial to identify the specific knee condition or injury they are experiencing, such as ligament instability, osteoarthritis, meniscal tears, or patellofemoral pain syndrome. Different orthoses are designed to address specific conditions, so knowing the diagnosis is essential for making an informed decision.

Evaluate the Severity of the Condition

Assess the severity of the patient's knee condition or injury. Consider the level of instability, pain intensity, range of motion limitations, and functional restrictions they are experiencing. The severity of the condition will determine the level of support and protection required from the knee orthosis.

Determine the Treatment Goals

Engage in a detailed conversation with your patient to understand their treatment goals and expectations. Discuss what they hope to achieve with the knee orthosis: pain relief, improved stability, increased mobility, or the ability to participate in specific activities or sports. Aligning their treatment goals with the features of knee orthosis will lead to better patient satisfaction and outcomes.

Assess the Functional Requirements

Consider the patient's activity level and lifestyle to determine the functional requirements of the knee orthosis. Does the patient need a brace for daily activities, sports, or both? Evaluate the specific movements and stresses in their activities to identify the necessary features such as flexibility, stability, and impact absorption.

Consider the Type of Knee Orthosis

Different types of knee orthoses are available, each designed for specific purposes. Common types include prophylactic (preventive), functional, rehabilitative, unloading, and patellofemoral braces. Speak to an orthotist to familiarize yourself with the features and indications of each type to choose the one that aligns with the patient's diagnosis, treatment goals, and functional requirements. 

Consider Comfort and Breathability

The patient's comfort is crucial for ensuring compliance with the knee orthosis. If the device is uncomfortable, the patient isn't likely to wear it as often as they should, which impedes recovery. Look for braces made from breathable materials that promote airflow and moisture-wicking properties to keep the skin dry. Consider cushioning or padding in areas that encounter the skin to enhance comfort and minimize irritation.

Seek Expert Opinions

Consult with orthotists, physical therapists, or other healthcare professionals like ACI with expertise in orthotic devices. We provide physicians with valuable insights and recommendations based on our experience and knowledge. Collaborating with specialists ensures you make well-informed decisions and consider all relevant factors when selecting a knee orthosis for your patients. 

ACI Knee Orthosis Offerings

We offer a variety of Knee Orthoses to help patients manage their lower extremity ailments. Each device has the highest quality materials and is designed to produce the most positive patient outcomes. Here are a few of our KO options. 

V-VAS™ Orthosis

The V-VAS™ Orthosis is a one-of-a-kind offloading/realigning brace that helps to achieve optimal varum or valgum stress without bulky or complex adjustments. Its unique polycentric adjustable hinge design creates an ideal bending moment that results in the precise offloading/realigning experience.   

It is the first long-axis offloading, closed dynamic frame custom knee orthosis that doesn't need to be removed to adjust offloading, and the mechanical axis is always non-binding and auto-aligning. 

KMO™(Knee Management Orthosis)

The KMO™ (Knee Management Orthosis) features a unique, single posterior joint that is cost-effective, patient-friendly, and a more accurate alternative for static progressive knee positioning.  

Unlike the limited standard choice knee immobilizer, the KMO™ can more effectively position the normal anatomical alignment of the patient's knee joint, which can easily be set in position without the need to heat or contour the upright to accommodate or progressively improve knee contracture issues, specific post-op ROM (Range of Motion) positioning needs or minor fracture stabilization.  

Pentagon® Orthosis

The Pentagon® Orthosis is a unique posterior fitting, single-jointed upright knee orthosis that provides another patient-friendly alternative to the traditional bulky double upright hinged knee orthoses configurations. This system design also allows for a simplified fitting of the knee orthosis that helps address many different rehabilitative needs for sagittal plane stabilization.  

The Pentagon® Orthosis is the only system that allows the calf and thigh segments to dynamically shorten and lengthen with the patient's extremity during flexion and extension of the knee to accurately track the normal anatomical knee center alignment for maximum stability which also helps to reduce unwanted friction to the skin to increase patient comfort and compliance. 

Make an Educated Decision

Choosing the suitable knee orthosis for your patients requires a thoughtful and informed approach. Physicians can make well-informed decisions by understanding the patient's diagnosis, assessing the severity of the condition, considering treatment goals, evaluating functional requirements, and seeking expert opinions.  

Remember to prioritize comfort, adjustability, and customization options while staying within the patient's budget. With these tips, physicians can select the most appropriate knee orthosis, providing their patients with the support, stability, and relief they need for optimal recovery and improved quality of life. 

KAFO Buying Guide: What Physicians Should Know When Selecting ...

When it comes to maintaining proper knee-ankle-foot alignment, controlling motion, and minimizing pain associated with various lower extremity injuries or conditions, there are a variety of effective treatment options, including surgery.

However, other effective treatment options are available for your patients who are candidates for less invasive means of treatment.

One such option we recommend to physicians is the Knee-Ankle-Foot Orthosis (KAFO), which is used to treat various lower extremity ailments. When selecting the right KAFO for your patients, there are many things to consider, including when to prescribe a KAFO, the main types, wear requirements, patient skin care and KAFO device care. This blog will discuss some of these considerations and serve as a KAFO buyer’s guide resource.

What is a KAFO?

A knee-ankle-foot orthosis (KAFO) is a leg brace customized to an individual's specific needs. It spans the length from above the knee to the ankle and foot to support the muscles, stabilize the joints and assist safe movement.

The KAFO delivers versatility that’s particularly needed in the early stages of neurological rehabilitation patient management. They can also be beneficial in recovery from all sorts of lower extremity issues.

KAFOs help compensate for muscle weakness, paralysis, or skeletal problems that cause lower limb instability. The KAFO helps to make standing and walking easier by:

Want more information on orthotic knee joint? Feel free to contact us.

  • Reducing joint paint
  • Improving joint alignment
  •  Preventing excess joint movement
  •  Controlling joint instability

It ensures superior mobility and a comfortable fit, providing better limb control. Produced from thermoplastics or carbon fiber composites, it is lightweight and fits closely. Each component, including the knee joint, knee locking mechanism, knee pads and bands, and whether or not there is a frontal plane control, is determined by an individual's unique condition.

When to Prescribe at KAFO

A KAFO is used as a walking aid for those with difficulty for various reasons. The most common are polio, partial spinal cord lesions, nerve injuries, and stroke.

The most common causes of muscle weakness that require KAFO usage are:

  • Muscular Dystrophy
  • Spinal Cord Injury
  • Poliomyelitis
  • Multiple Sclerosis
  • Cerebral Vascular Accident (CVA/Stroke)

There are many factors to consider when prescribing and fitting the device on an individual. These include the type of deformity, the biomechanical deficit to be addressed, an individual's weight and activity level, and lifestyle issues.

Individuals experiencing significant fixed deformity may benefit from a weight-relieving brim in the orthosis, in which the individual's weight can be migrated from the affected extremity.

Types of KAFOs

KAFOs are complex devices, so their designs vary according to the patient's needs. There are two main types:

  • Metal KAFO with side steels that insert into the shoe heel with leather thigh section and calf band.
  • Plastic KAFO with molded thigh and calf sections that fit inside the shoe, connected by metal side bars.

KAFO Wear Time

When instructing your patients about KAFO wear time, remember that they should gradually increase the wear time. This allows their skin to adjust to the supportive pressures that the KAFO applies.

Make sure your patients understand that If their KAFO becomes uncomfortable, they should discontinue use and consult you.

Footwear with KAFO

Some instructions for your patients regarding footwear, When selecting shoes to wear with their KAFO, they should look for the following features:

  • Enclosed heel and toe
  • Secure lace or velcro fastening
  • Removable insole
  • Heel height recommended by your orthotist

They should select comfortable, supportive shoes to maximize the benefits of the KAFO.

KAFO Care Recommendations

Once individuals begin wearing their KAFO, they should wear socks and shoes, which will serve as a barrier between the brace and skin to reduce any friction and improve comfort when perspiration occurs. It's recommended to wear a basic athletic shoe with laces or Velcro closures. This allows for adjustments to be made more easily when needed.

Each time it is removed, the wearer of the brace should check their skin for any signs of marking or redness. If red marks persist for longer than 30 minutes or the skin breaks down or blisters, the individual should discontinue the use of the brace and contact their doctor.

KAFO Designed for Mobility and Comfort

In the past, the best option to treat lower extremities with an orthosis would be to wear a KAFO with a locked knee joint. While this provided the necessary stability and support of the knee to prevent involuntary flexion, it also caused muscle atrophy, increased energy expenditure in gait, and a non-cosmetic walk.

Today's KAFO technology has been re-engineered with an enhanced design that can automatically lock and unlock at the appropriate times in the gait cycle. This allows for a more fluid walking style and promotes muscle strengthening.

Anatomical Concepts KAFO Options

Prefabricated Knee Ankle Foot Orthoses (KAFO Brace)

Our Prefabricated KAFO and AFO modular orthotic systems are in stock and cost-effective compared to custom-made or hybrid-type designs.

They offer the versatility needed, particularly in the early stages of neuro-rehab patient management. Studies have proven the value of early mobilization and proper anatomical positioning.

Learn more about this brace here.

Custom Adult V-VAS™ Knee Ankle Foot Orthosis

This device is a unique KAFO custom-fabricated for those who present or require treatment of various knee arthropathies and/or bowing of the lower extremity. The dynamic V-Vas™ joint system allows for sequential deformity correction and creates a precise offloading effect.

For more sach footinformation, please contact us. We will provide professional answers.