AK BK with Polycentric Knee Joint – Uses

An AK BK Orthosis with Polycentric Knee Joint is a long leg orthopedic brace designed to support the lower limb while allowing smoother and more natural knee movement during walking. The polycentric knee joint mimics the natural anatomical motion of the knee for improved gait and comfort.

Full Form

• AK = Above Knee

• BK = Below Knee

• Polycentric Knee Joint = Multi-axis mechanical knee joint

Uses / Indications

• Poliomyelitis (Polio)

• Quadriceps Weakness

• Knee Instability

• Post Paralysis Rehabilitation

• Stroke Rehabilitation

• Cerebral Palsy

• Muscular Weakness

• Neurological Walking Support

• Spinal Cord Injury

• Post Trauma Lower Limb Support

• Genu Recurvatum Control

• Flail Limb

• Knee Hyperextension Prevention

• Long Leg Orthotic Rehabilitation

• Weak Lower Limb Muscles

• Gait Training Support

Benefits

• Provides more natural knee movement

• Improves walking pattern and gait

• Enhances stability during ambulation

• Reduces abnormal knee motion

• Better sitting comfort compared to rigid joints

• Helps prevent knee hyperextension

• Lightweight and durable support

• Improves balance and confidence

• Supports rehabilitation and mobility training

• Comfortable for long-term use

How It Works

The Polycentric Knee Joint uses multiple pivot points to simulate the natural rolling and gliding motion of the knee.

It helps by:

• Improving knee biomechanics

• Providing smoother flexion and extension

• Enhancing walking efficiency

• Reducing stress on joints

• Supporting weak muscles during movement

The orthosis stabilizes the leg while allowing controlled and functional mobility.

Recommended For

• Orthopedic Rehabilitation

• Neurological Rehabilitation

• Pediatric Orthotic Management

• Adult Mobility Support

• Physiotherapy Centers

• Long-Term Ambulation Support

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