🦵 What Is a CPM Machine and How Does It Work?
- Rishu Chauhan
- Jul 8
- 2 min read
(Complete Guide to Continuous Passive Motion Therapy)
If you or a loved one is recovering from orthopedic surgery — especially knee, shoulder, or hip replacement — your doctor might recommend a CPM machine. But what exactly is a CPM (Continuous Passive Motion) machine, and how does it help in recovery?
In this guide, we’ll explain everything you need to know about CPM machines — how they work, their benefits, and whether they’re right for you.
✅ What Is a CPM Machine?
A CPM machine is a motorized medical device designed to gently move a joint (usually the knee, shoulder, or elbow) through a controlled range of motion without requiring the patient’s muscles to engage. It’s typically used after surgery to help reduce stiffness, improve joint flexibility, and accelerate healing.
⚙️ How Does a CPM Machine Work?
The machine has a padded cradle where your limb is placed. Once activated, it slowly and rhythmically moves the joint back and forth in a pre-set range of motion. The movement is passive, meaning you don't need to apply any effort — the machine does all the work for you.
You can control:
Speed of movement
Angle of motion
Duration of therapy
It can be used lying down or seated, depending on the body part and model.
💡 Key Benefits of Using a CPM Machine
Using a CPM machine after surgery or injury can offer several advantages:
Prevents Joint StiffnessRegular passive movement keeps the joint from becoming stiff and helps maintain flexibility.
Improves Blood CirculationGentle motion increases blood flow, which promotes healing and reduces swelling.
Reduces Scar Tissue FormationPassive motion minimizes the risk of internal scar tissue that can restrict movement.
Enhances Recovery SpeedPatients often experience quicker rehabilitation when CPM is used early in recovery.
Reduces Pain Over TimeBy keeping the joint mobile, many users report reduced pain in the long term.
🏥 Common Uses of CPM Machines
Post knee replacement surgery (TKA)
After ACL repair
Shoulder or rotator cuff surgery
Hip surgery
Fracture recovery
🕒 When and How Long Should You Use It?
Doctors usually recommend starting CPM therapy within 24–48 hours after surgery. The typical session can last 30 minutes to 2 hours, and it may be done multiple times a day, depending on your condition.
Always consult your orthopedic surgeon or physiotherapist for a personalized schedule.
🛒 Looking to Buy a CPM Machine?
At Skrilix, we offer high-quality CPM machines designed for home and clinical use. Our models come with:
Metal body (not plastic)
Digital controls
Comfortable padding
1–2 year warranty
🔍 Final Thoughts
A CPM machine is a powerful rehabilitation tool that can greatly improve recovery after joint surgery. It reduces stiffness, enhances healing, and helps patients get back on their feet faster.
If you're considering CPM therapy, speak with your doctor and explore reliable, medical-grade options from trusted brands like Skrilix.
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