Steady Passive Movement Treatment (Do CPM Machines Paintings?)

(I would possibly earn a small fee from the goods discussed on this put up.)

Steady Passive Movement (CPM) generally is a treatment used as a part of restoration after knee alternative surgical procedure.

Even supposing I didn’t use one all over my restoration, I do know they are able to be a precious part for other folks’s rehabilitation. I can define the way it works explicit to the knee joint and speak about one of the most professionals and cons of continuing passive movement machines (or CPM machines).

This isn’t a treatment that you just will have to make a selection by yourself. The verdict to make use of a CPM system will have to be made by way of your surgeon or your bodily therapist.

There are options to CPM which come with bodily treatment and lively manipulation. I’ll proportion how I recovered and I’ll supply useful data in your restoration.

What Is A CPM Device?

A Steady Passive Movement Device is a post-surgical treatment this is used to transport the joint with out the affected person exerting any effort. The system is motorized and bends the knee joint backward and forward.

Your therapist is in a position to regulate the system to a particular collection of levels and too can set the system on the desired velocity. CPM machines are maximum regularly used on knee joints after surgical procedure however there are machines made for different joints too.

The system is in most cases used all over the preliminary therapeutic duration, in an instant after knee alternative surgical procedure and the primary few days of restoration.

Goal of Steady Passive Movement Treatment

After knee alternative surgical procedure, your clinical crew will need you to start out strolling and dealing for your vary of movement.

The CPM system assists in keeping your knee shifting proper after surgical procedure, if you are nonetheless for your health center mattress. The CPM system strikes the knee joint with out your lend a hand.

Some surgeons have advisable CPM machines to forestall scar tissue (find out how I massaged my scar) from forming that can lead to stiffness. Scar tissue in and across the joint may just prohibit your vary of movement.

Stiffness for your knee joint could cause headaches that can motive ache and result in a required “knee manipulation” underneath anesthesia by way of your surgeon.

How the CPM Device Works

The CPM system can paintings in case you are mendacity down or sitting up. You set your knee at the body of the CPM knee system.

Your foot suits right into a footpad this is adjustable. Your leg is secured by way of adjusting the straps (that are hooked up to the system). The bodily therapist or your physician can regulate the velocity and perspective for the system.

The CPM system will also be adjusted to how a lot ache you’ll be able to tolerate. Ache is part of the restoration procedure, together with the CPM system. Medicine if prescribed will surely lend a hand.

Professionals and Cons of The use of a CPM Device

As I’ve discussed in different articles, everybody has a distinct enjoy with restoration. Whilst some clinical execs will counsel the usage of a CPM system, others is also in opposition to it.

All of it comes down for your explicit state of affairs and desires. From my surgical procedure, I realized that motion of the joint in an instant was once crucial for my restoration.


  • It is going to lend a hand the variability of movement for your knee building up.
  • Promotes blood movement.
  • This is a passive movement and no effort is needed of the affected person.
  • Some sufferers with different well being problems may now not be capable to do the bodily workout essential to rehab the knee the usage of their very own effort.
  • There generally is a mental receive advantages seeing your knee bending in an instant after TKR surgical procedure.
  • The CPM system elevates your leg which will lower swelling. This may additionally lend a hand ache led to from swelling.
  • It is going to lend a hand save you scar tissue from build up.


  • Many docs now not counsel CPM machines as a result of more moderen analysis does now not enhance their use. In step with my studying, research don’t display an important distinction in TKR sufferers the usage of the CPM system. The research I learn point out that sufferers usually are on the similar level of restoration inside a number of weeks of surgical procedure without reference to the usage of the CPM system. My physician didn’t suppose the CPM system was once essential for my post-surgery restoration. He prescribed lively bodily treatment from day one.
  • When sufferers depend at the system an excessive amount of it every so often helps to keep them in mattress longer.
  • The system is probably not at ease and you could have hassle sound asleep or snoozing when it’s in use.
  • Price will also be a subject. Maximum insurance coverage firms pay for the in-hospital use of the CPM system. No longer all duvet the price of renting a CPM system to make use of at house. My analysis on the web signifies that the majority machines price over $2,000.00.
  • Docs who don’t counsel the system wish to have their sufferers up and specializing in lively treatment.

Choices for CPM (and identical merchandise)

The Vinmax CPM system (click on to view on Amazon) is one among a couple of choices to be had on Amazon. It makes use of a motor and virtual show to stay the knee joint shifting with out the assistance of your muscle groups.


  • Adjustable straps
  • Adjustable perspective and velocity
  • Virtual show
  • Motor – self-moving

The person can exchange the attitude and velocity of the CPM to fit their wishes. Some of the cons of this piece of kit is the associated fee (it’s now not very reasonably priced).

The Knee Drift (view on Amazon) is another choice to stay the knee joint shifting. It isn’t a conventional CPM system as it calls for the person to manually transfer the lege (no motor).

On the other hand, it’s extra reasonably priced and has excellent evaluations. It’s moveable and can be utilized whilst seated or status. I in point of fact like this selection in comparison to the motorized model discussed above.

Selection to a Steady Passive Movement Device

Maximum surgeons appear to want that their TKR sufferers have interaction in lively bodily treatment in an instant after surgical procedure if their well being lets in. For me, lively treatment began within the health center about 4 hours after my surgical procedure.

A bodily therapist got here to my room and gave me easy workout routines that I may just do in mattress and he or she inspired me to start out strolling with a hospital-provided walker.

To begin with, I began with easy ankle pumps and ankle rotations (those workout routines are simple and labored nice). I used to be inspired to stroll with the walker to and from the toilet.

On day two my therapist took me on a stroll down the corridor with the walker, and later returned for an extended stroll to her workout room the place she gave me a stair take a look at that I needed to do prior to being discharged (learn extra about my post-surgery workout regimen).

As soon as at house, I used to be visited by way of a house bodily therapist three times every week for a complete of 12 visits. She gave me a strenuous set of workout routines that I used to be to do three times an afternoon.

It was once a lot more uncomplicated doing the set along with her observing and inspiring. Doing the workout routines alone took a great deal of strength of mind.

On occasion the ache gave the impression insufferable however I made myself entire the workout routines. No longer simple! Fortunately, my extension returned with out a lot effort. The flexion was once the actual take a look at for me.

The 2 maximum useful and painful workout routines had been ankle slides’. The primary, mendacity flat on my mattress and pulling my ankle again in opposition to my butt the usage of a gown belt to tug.

The second one maximum really helpful workout was once sitting in a chair, sliding my leg as a long way again underneath the chair as I may just the usage of a plastic bag to slip at the tile flooring. After 10 reps, I wrapped my excellent ankle across the entrance of my surgical leg and compelled it again so far as I may just for any other 5 reps.

I did either one of those 2 workout routines three times an afternoon, 3 units of 15 along side a number of different workout routines she prescribed. See my different articles for specifics.

The desk bound motorbike within the gym was once any other useful gizmo for expanding my flexion. You’ll be able to regulate the resistance and building up the time every time you need. I wish to experience a normal motorbike however this can be a excellent change till you’re feeling at ease sufficient to get again at the street.

I used to be additionally inspired to start out massaging my knee across the scar as shut as I may just get the usage of “Loose Up” lotion (learn my article about Loose Up and different medication I used). As I healed, I persevered to therapeutic massage all the knee even the scar itself.

Once I used to be given the alright to resume swimming I used to be again within the pool. Flexing and bending the knee within the water was once more uncomplicated with little resistance.

I additionally started the usage of the hot-tub once I were given the k and the warmth and jets helped with flexion and bending.


Knee vary of movement (ROM), in addition to a discount in ache, is thought of as to be one of the most number one signs of a a success TKR. 

Maximum surgeons have opted to not use CPM machines. As a substitute they prescribe lively bodily treatment for his or her sufferers. There may be somewhat just a little of study now supporting bodily treatment intervention for making improvements to knee vary of movement and serve as following TKR surgical procedure.

A CPM system may well be suitable for sufferers who’ve underlying well being problems, particularly those that have hassle strolling after surgical procedure. Keep in mind, everyone seems to be other. Seek the advice of your clinical crew and bodily therapist to determine what’s right for you.

Share Us

Inquiry Now