Reviews for Dynamic Disc Designs

This model with the bulging nucleus is exactly what we see in real discs – its brilliant. It is a perfect teaching tool to illustrate the difference between flexion motion and flexion moment/torque and the disc bulge as an injury mechanism.

I am a practicing orthopedic spine surgeon in Northern California.  Jerome’s models give patients an immediate understanding of the anatomical basis of their symptoms and instantly communicate complex spatial relationships that are otherwise extremely difficult if not impossible to communicate otherwise.  One of the core tenets of my practice is that informed patients make better decisions and these models allow me to communicate more effectively and efficiently with my patients.  Thank you!

I have just received my Dynamic Disc model of the lumbar spine & pelvis. VERY good. Excellent / true anatomic accuracy. No metal rod up the spine! L spine and SIJs move naturally. Outstanding ed tool. Thanks!!!

This is a great model. I leave it on my desk to help me visualize anatomy and use it in videos to teach other PTs. Highly recommended.

Dr. Fryer has done an amazing job! We have two lumbar dynamic disc models in a large integrated clinic, and they are constantly being borrowed from room to room to help demonstrate and explain to patients what is going on with them. I like to show them off to colleagues too. Every chiropractic, physical therapy, and medical school should have some for their anatomy programs.

This is the best model lumbar spine I have seen. I am proud to possess one. It will be of great value when explaining to my patients as well as in my research using Upright MRI

Mark Bodnar

I strongly recommend clinicians take advantage of the ddd spine models.  I find the model helps patients get a better understanding of the anatomy and the mechanics of what is happening and where the pain is coming from.  With a better understanding they can be a more active participant in their recovery and less a passive bystander hoping the problem gets better.  Especially effective at teaching about flexion intolerance and discogenic/neurogenic pain.

I’ve been using a Dynamic Disc Designs model since they first started producing them and my original model is just now ready to be replaced. Thanks for the help all these years.

In the clinical context of treating complex chronic back pain patients, it is absolutely essential to marry neurophysiological explanations for low back pain with biomechanical ones. If patients have an overt biomechanical fault, a visual model such as the ones masterfully created by ddd can be used to depict which loads, postures and movements aggravate their pain. This facilitates teaching patients how to then avoid those loads and postures for a while to unwind nociceptive sensitivity. I personally use these models as part of a comprehensive biopsychosocial approach. I am a firm believer that thoroughly educating our patients is a cornerstone for enabling self-management. These models help us to navigate their road to recovery.

It’s the best…..I particularly like the visualization of nerve and blood vessel ingrowth, and the contrasting physical “feel” of the ligamentum flavum and annulus fibrosus!

“These models have transformed my patient education. They bring the MRI to life. DDD models are a massive piece in the patient education picture. These models are now an integral part of my practice.”


Personal Trainer
Fitness Consultant

Your Professional LxH Model is the most detailed and useful spinal disc model I have ever encountered. It illustrates not only the normal anatomy of a Lumbar disc segment, but its innervation, pathoanatomy of annular tears, and how the tear progresses to disc herniation when the spine is loaded in flexion and extension. This model is extremely valuable in helping me explain my patient’s pain and how I plan to address the pathoanatomy with my endoscopic minimally invasive techniques.

Dr Jerome, whether you realize it or not (am sure you do!), your DDD models have helped connect the doctor and client in a way that was never attainable before. Compared to generic ‘static’ models, your ‘dynamic’ models help us explain the intricate details of each client’s condition in an easier to understand concept that can be catered or customized to each individual client’s needs, whether technical or basic. Your models have re-established the vital importance of the doctor / client communication relationship, dramatically bridging the gap for both to have a common understanding of the condition, the process ahead, and the targeted outcomes towards health and wellness for life. Simply perfect.

My two favourite are the Professional LxH and the Lumbar Spinal Stenosis Models

I bought my first spine model from Dynamic Disc Designs 5-6 years ago and has served me well ever since.  The model is just as good as the day I bought it. Patients really love the visualization of the disc! I feel that is an invaluable tool in my discussions with them.

“Best spinal models I have seen for education in the classroom, seminars and for patients. Exactly what I see in the lab and make people truly understand the biomechanics and potential injuries”

The models I have purchased from Dynamic Disc Designs are the most anatomically accurate and useful spine education models on the market today.  An essential piece for patient education in spine.

Every chiropractor should have this model in their office to teach their patients about their disc problems. Simply put it is the most effective model that exists…period. Patients “get it” – both what their problem is and how care works to reverse their disc problem. Worth every penny, wish I knew about it before!

One of the biggest challenges I have had with my patients is helping them understand what is happening to their spine.  There are plenty of posters, pictures and apps that help people SEE what the problem is, but there is something about being able to hold a spinal model with your own hands and move it into different positions, especially one with as much detail as the Dynamic Disc Designs models.  I recommend these models to all the docs I know!  Keep up the good work!

I was recommended to purchase a Professional LxH Disc Model and was incredibly impressed with its quality and design when it arrived. The fact that patients are able to see into the disc allows them to understand the manner in which the disc can cause nerve root irritation. We have now established a Disc Clinic and use our DDD Spine Education Model as an integral part of explaining to both people referring patients to the clinic and the patients themselves how our treatments can offer effective pain relief and facilitate tissue healing and repair in cases of disc pathology. I would recommend these products to anyone wanting to enhance their ability to educate and inform people about disc related pain and dysfunction, they’re truly 5 star!

You can use a poster or a tablet to educate your patients, but they will see an image on a poster or a tablet. If you use a 3d model, they will have a spine in their hands. There is not a minute to loose in a clinic and a DDD model is simply the best way to demonstrate back pain. I use the same model since 5 years and it is still in very good condition. Quick, visual, concrete, straight to the point.

The Dynamic Disc model enhances patient education and has been invaluable at explaining what happens with disk pathology. I have been using these models for many years and have not seen a better product on the market. Well done Dr. Fryer!

The Dynamic Disc model has condensed my detailed report of findings to “this is your disc, this is what decompression therapy does, any questions?

I can see how this would be very useful when explaining spinal issues with patients.

I have been running a Chiropractic spinal decompression practice for the past 13 years. The technology of that type of therapy is greatly effective for treating disc pathology only if the patients understand their specific situation and how that relates to the treatment recommended. Since using the LXH model the past month I have seen that “light bulb” moment many times. It quickly and effectively brings the patient to a comprehensive understanding of what’s happening to them and why they are in pain. When they see the posterior disc migration actively occur then hitting the nerve it answers most of their question right there. I have resorted to drawings of my own and pictures in the past when giving report of findings in degenerative disc cases as I include neoneuralization in my discussion.  The LXH model also brings that concept home quickly too. Brilliant work on the models as things that make my treatment more effective, my day easier and more profitable I’m all for. Thanks for taking the time to do this! Again brilliant!

I recently ordered some models from Dynamic Disc Designs at the North American Spine Society Meeting. While I have used many models for patient teaching over the years, these models are so much more accurate and realistic. The dynamic design allows the patients to understand the pathology of disc herniation very clearly. I strongly recommend these models for patient education and surgical consent discussions.

We used one of your spine models on a two level cervical fusion case during a trial in Denver County District Court in January of this year. We obtained a verdict over 2 million dollars.  It was extremely helpful to explain to the jury the nature of the anatomy and the extent of the injuries involved.  My expert used this model during his examination and it was helpful in my verdict, for sure.  Specifically, the model I used has a built in annular tear into a spine model.  As you load the disc with your hands, you can see the nucleus exit the disc and impact the nerves.  Everyone in that courtroom understood the injury at that moment.

I am the Practical Department Education Advisor at the West Coast College of Massage Therapy, a practicing RMT for 8 years, and a self proclaimed “back-geek”. I teach massage therapy students about soft-stiiue injury, and take particular enjoyment in teaching them about my favourite subject, back pain.
We have some models at WCCMT, but none of them are quite as detailed, and none are nearly as dynamic. The Professional LxH model has been an outstanding visual aid for teaching students about hydrodynamics of discs, vertebral bodies, and fantastic for demonstrating how nuclear material may herniate relative to a nerve root. Two dimensional drawings in our orthopaedic text-books can not compare. This USED to be a much longer lecture! lol… Thanks.
I wish the college would buy a model for each type of spinal pathology. It would make put jobs easier, more pleasurable, and demonstrate, more realistically to students pathoanatomical mechanisms for spinal pain and dysfunction.
Thank you for your dedication to improve the tools that we teach with every day.

I would and highly have suggested to purchase the models for your practice or law firm. I have used the herniation models in trial and the ah ha factor is overwhelming. Being a non surgical spinal decompression specialist, the models have allowed me to explain the disc injury in such vivid detail, that patients have no issues writing checks to cover the cost of the therapies. I have basically sold my “old and outdated” models to young docs to make room for the Spine Education Models. Thank you so much and am so glad I bumped into you a number of years ago at the Parker Seminar in Vegas and hope to see you there again.

I have used the Dynamic Disc model for over 5 years. It has been an extremely valuable tool in educating my patients throughout their treatment. It clearly demonstrates what the patient’s problem is and what we can do to help treat them.. A well educated patient will usually follow your recommendations therefore  making your practice outcomes more successful
Thank you DDD for making such an awesome product !!

There is a wealth of misinformation amongst both health care providers and the lay public regarding spine related disorders. As a clinician who practices as a Primary Spine Practitioner, my patient population is almost entirely comprised of neck and low back complaints. Contemporary evidence-based management of these patients requires the adoption of a biopsychosocial model of care. In turn, many of the psychosocial risk factors associated with poor clinical outcomes have become potentially modifiable targets for treatment. Fortunately for clinicians, their most powerful and influential tool for managing the aforementioned risk factors, is their ability to effectively communicate with their patients. Having an accurate and interactive model available to help convey pathomechanical and pathophysiological concepts is therefor extremely valuable. I believe the ddd models enable me to quickly and effectively educate my patients, allowing me to better manage inappropriate attitudes and beliefs concerning their diagnosis, treatment options, and subsequent prognosis.

I work in a pain management center.  I use the Professional LXH Disc Model daily to explain any number of spine pathologies to my patients.  The dynamic nature improves patient understanding and engagement in care, which is essential for compliance and therapy success.  I have 3 other spine models in my office, and use the LXH the most, by far.

I cannot tell you how much I use the Professional LxH lumbar disc model.  I have had it 2 years+ and it is still good as new.  Thanks again.

I use the spinal disc model daily to educate my patients. The dynamic nature of this model conveys the importance of proper movement patterns and disc mechanics.

Got the models a few weeks back and they are fantastic. Great job with them, I will definitely be referring others to you. They have been invaluable in educating patients.

I am writing regarding your “Classic LxH” model spine, with ligamentum flavum, interspinous ligament, cauda equina, and herniated nucleus pulposus (EpiLxH Model). Our hospital anesthesiology department and OB department are thrilled with the high quality and ease of use of the Classic LxH for explaining epidurals not only to the patients having spinal anesthesia, and to expectant mothers for whom we are placing epidurals, but also in helping our OB nurses better understand the issues and concerns facing anesthesiologists and CRNAs, and in helping train new residents and SRNAs as they learn to place epidurals for the first time. The expectant mothers comments:  “Now I understand why I need to sit hump-backed!”  “I feel much more comfortable, knowing what you are doing and how I can help make it easier on myself!” “I am glad you explained it to me.” Nurses comments; “Oh, so that is why you want them to sit slouched over!”  “Now we can see why you may have trouble sometimes, placing epidurals and spinals.”  “Now we can understand much better what you are doing, and how we can help you with patient positioning.” Resident/SRNA and even CRNA comments, “Big help on placement!  Much easier to get the ‘feel’ on the model than doing it in real life for the first time!”  “Gives a much clearer understanding than a photograph! Easier to visualize what I need to be doing and why.” “Using the model, I learned how to ‘walk off’ a bony protuberance.” Also, “Really helped me understand how a paramedian spinal approach works and how to make it more effective.” Dr. Fryer, we are very pleased with our model!  We even let the nurses try to place epidurals in it, and that has greatly increased interest in and participation in training classes for new and older nurses!  Thanks so much for an excellent product!  We are so glad we purchased this model and look forward to using it for years to come. We are glad somebody thought of this. It was long overdue!”the patients having spinal anesthesia, and to expectant mothers for whom we are placing epidurals, but also in helping our OB nurses better understand the issues and concerns facing anesthesiologists and CRNAs, and in helping train new residents and SRNAs as they learn to place epidurals for the first time.

Dynamic Disc Designs spinal segmental models are unique in many ways and represent a new standard in quality and anatomical detail far superior to any of their predecessors.  Their value far exceeds their cost.

I am very pleased with the 2 models I have purchased from Dynamic Disc Designs.  They seem to be very well made & are very helpful in demonstrating the three dimensional structure of the spine, including the disc mechanics.  I don’t know of any other models that are as good.

I use the Dynamic Disc as a teaching tool in my clinic for patients and with doctors at the CLEAR Scoliosis Seminars. With the Dynamic Disc it is easy to show how restoring the lordosis corrects the disc herniation. It promotes compliance with patients for structural correction and understanding with the doctors. Every doctor of Chiropractic should have one of these in their clinic.

The bone models purchased from Dynamic Disc Designs are the best I’ve seen yet.  I personally use them on a daily basis for patient education. In addition, they have been a helpful visual aid during litigation proceedings. Seriously, a bone model is worth a thousand words.

Thank you very much Dr. Jerome Fryer for your products as well as an excellent presentation of these extremely important in real medical practice spinal models.  Being many years as a surgeon in the former Soviet Union – Navy(Submarines), Military-field surgery(Afganistan),General and GI Oncology,Full-fl… Professor of Surgery at the Military Medical Academy named after S.M.Kirov(Leningrad), and now PM&R/PAIN Management Specialist(Graduated from NYU Medical Center), I can say with my almost 40 years experience- you are the best in this branch of Medicine!! Congratulations. Respectfully, Dr.A.K.

I would like to thank you and your company Dynamic Disc Designs Corp. for creating a realistic product that can be considered worthy of being in a health care office.  This product makes it so much easier to show a 3D reference while explaining MRI’s and X-rays results to the patients.  I actually did not really use 3D models before because of their lack of realism.  Please keep on developing your models and I would highly recommend you to everyone.

The LxH disc model is the most realistic patient education tool I’ve seen in 27 years of practice. When patients see the model, they immediately “get it”. If you treat herniated discs in your practice, this is a must have. I commend Dr. Fryer on his painstaking efforts to produce such a finely crafted and well thought out model. Every chiropractor needs the LxH. I look forward to more innovative products in the future, and I will continue to enthusiastically recommend the models to all my colleagues!

If a picture is worth a thousand words, Dr. Fryer’s model is worth even more. I have found it extremely valuable in my practice, and as a Chiropractic educator.

Finally, a realistic spinal model that can demonstrate real-life spine injuries. And importantly, show load related pain problems like disc herniations, disc bulge, nerve root and dural sac encroachment with a dynamic deforming load sensitive model. Explain high intensity zones ( active inflammation ), for example, of annular tears on MRI with a see-through vertebral lens and view of the intervertebral disc. A powerful educational tool for any Personal Injury Lawyer involved with spinal related injuries.

Wow! This is the best lumbar disc model I’ve ever seen. Patients see and believe! You can demonstrate the problem and the solution. I’m amazed at the construction of this model. Awesome job.

The DDD models have helped me as an instructor in a DPT program show a more realistic anatomical representation of the human spine. This helps the students have a more accurate image of the spine in their head and allows them to have a stronger anatomy foundation.

I previously used the standard spinal model sold on the market, but my patients seemed disinterested, but when I switched to the DDD model not only was it educational for adults, but has sparked children in our practice to ask great questions as well! They are amazed at the details on the DDD model and really enjoy learning about their spine now!

My clinic relies heavily on the patient education process, as I believe all clinics should. I have not come across any anatomical model that depicts spinal mechanics as well as this one does. It saves me time, makes detailed explanation easy, increases patient compliance and ultimately, produces better results. I recommend it highly to any clinician who works with the spine.

Over 12 years i have bought multiple items. Spines, vertebrae models. However the only one i use now is the ddd model. It is absolutely the best. I hand it to the patient and go over their problem. I brings a realism factor. The patients problem is now REAL. Xrays are good but are static. This model is the REAL deal. I literally couldn’t practice without it.


Your model of verebral anatomy has been totally amazing at showing the phenomenon of disc secussion that can occur during decompression therapy! Thanks!

The Dynamic Disc Designs model is by far the best teaching aid in my arsenal. I use this model every day in practice because it makes my job of educating patients so much easier. This dynamic model allows the patient to visually see with their own eyes the dynamic movements of a disc and the adjacent vertebrae and the associated nerves.

Living in Dubai I have many patients who are unfamiliar with spinal biomechanics, and often they do not speak fluent English. Having this model has been an amazing way to clearly help them understand where the pain is coming from, and how I can help them. Best teaching tool I have ever used!

Your DDD models: if “One picture is worth a thousand words,” I’d have to say that “One DDD model is worth a thousand pictures!

I have had the lumbar disc model for a couple months now and it has made my explanation of disc herniations so much easier – since having this model, I have had so many “ah-ha” moments with patients. It just makes sense and to me is a no-brainer to have in the office. If you want to explain disc herniations and any other typical pathology to patients, this is an easy purchase – you won’t be sorry!

Most patients can’t comprehend spinal anatomy with charts and pictures. The DDD models have made my life easier because now they understand what I’m trying to tell them. Since they understand patients are keeping their treatment plans better.

After using every patient education tool out there over my 29 years of practicing, I finally found one that is hands down the best out there! My patients now truly understand , not only the problem, but the necessity of treatment!

The use of your models have enhanced both our level of teaching and also the experience of learning for our students. The dynamic abilities of your lumbar disc model has made patient education a breeze with a higher level of patient compliance with their home exercise programs because of their greater level of understanding. Simply the best anatomical teaching aids on the market today!

As a chiropractor in a hospital setting we see a high number of complex spinal conditions. Up until we purchased the models from Dynamic Disc Designs it was almost impossible to give an accurate demonstration of spinal biomechanics and the effects on the discs, joints and ligamentous structures. DDD has single handedly changed the way I practice. Patients just get it. The spinal models from DDD should be in every doctor’s office and on the shelves at every medical, chiropractic and physical therapy school.

I run a busy Chiropractic and spinal decompression practice. We see a lot of people with herniated discs. When I show them the Dynamic Disc Model that Dr. Fryer created They can easily understand the anatomy of what they have going on. It REALLY helps with conversion to care. Without a doubt its helped me help more people!

I have been using the lumbar and cervical spine models for over 15 years and still use them almost daily. My aha moment producing favorite is the disc model. Fun and amazing. Thank you for providing an excellent line of products.

Patients want to know what is causing their pain and this model provides them with the answer. They get it immediately and after explains their treatment/solution they are ready to start care