Osteochondritis dissecans, also called OCD, is the most common cause of a loose body or fragment in the knee and is usually found in young males between the ages of ten and twenty. While this word sounds like a mouth full, breaking down its Latin derivation to its simplest terms makes it understandable: “osteo” means bone, “chondro” means cartilage, “itis” means inflammation, and “dissecans” means dissect or separate. In OCD, a flap of cartilage with a thin layer of bone separates from the end of the bone. As the flap floats loosely in the joint, it becomes inflamed, painful and disrupts the normal function of the joint.
Typically, OCD is found in the knee joint of active young men who participate in sports which involve jumping or full contact. Although less common, it is also found in other joints such as the elbow.
Often, the exact cause of OCD is unknown. For a variety of reasons, blood flow to the small segment at the end of the bone lessens and the weak tissue breaks away and becomes a source of pain in the joint. Long term, OCD can increase the risk of osteoarthritis in the involved joint.
To properly diagnose OCD a physician will consider onset, related activities, symptoms, medical history, and examine the joint involved for pain, tenderness, loss of strength and limited range of motion. Often, a referral to a specialist such as an orthopedic surgeon for further examination is necessary. Special tests specifically detect a defect in the bone or cartilage of the joint such as:
Radiograph (X-ray) may be performed to assess the bones.
Magnetic Resonance Imaging (MRI) may be performed to assess bones and other soft tissues such as cartilage, ligaments, muscles and tendons.
The primary goal of treatment for OCD is to relieve pain, control swelling, and restore the complete function (strength and range of motion) of the joint. The age of the patient and severity of the injury determine the treatment methods. For example, medications assist with pain and inflammation reduction.
Young patients who are still growing have a good chance of healing with conservative treatment. Rest and physical therapy are the conservative treatments of choice. Rest entails avoiding any activity that compresses the joint such as jumping, running, twisting, squatting, etc. In some cases, using a splint, brace and crutches to protect the joint and eliminate full weight bearing, may be necessary for a few weeks. Physical therapy, either as a conservative or post operative treatment, involves restoring the range of motion with stretching exercises and improving the strength and stability of the joint through strengthening exercises. Modalities for pain and swelling such as heat, cold, electrical stimulation, ultrasound, compression devices assist with treatment depending on the age of the patient and severity of the problem.
Conservative treatment can often require 3 to 6 months to be effective. However, if it fails, arthroscopic surgery stimulates healing or reattaches the loose fragment of cartilage and bone. In some cases if the defect is small, surgery involves filling in the defect with small bundles of cartilage. In other cases, the fragment is reattached directly to the defect using a small screw or bioabsorbable device. More recently, surgeons are using the bone marrow of the patient to repair the deficit by stimulating the growth of new tissue (bone marrow stimulation).
In other cases, a plug of healthy tissue from the non-weight bearing surface of a patient's knee relocated to the defect to stimulate healing (osteochondral autograft transplantation OATS). While there are many surgical options for OCD, an orthopedic surgeon will help the patient decide the most appropriate procedure based on age, size of defect, and other factors.
While prevention is not always possible, some measures can be taken to limit risk. For example, if a child playing sports has a father and older brother who had OCD, then it would be wise to consider the following: Avoid or make modifications for sports requiring constant jumping. Cross-train for a sport to avoid daily trauma (run one day and bike the next). Also, do not play the sport all year round (basketball in the fall/winter and baseball in the spring/summer). Seek the advice from an orthopedic or sports physical therapist to learn proper strength and conditioning techniques. Learn proper biomechanics of lifting, throwing, squatting, running, jumping and landing.
Sources: Mayo Clinic
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This article is not intended as a substitute for medical treatment. If you have questions related to your medical condition, please contact your family physician. For further inquires related to this topic email: drpmackarey@msn.com
Paul J. Mackarey PT, DHSc, OCS is a Doctor in Health Sciences specializing in orthopedic and sports physical therapy in Scranton and Clarks Summit. Dr. Mackarey is in private practice and is an associate professor of clinical medicine at Geisinger Commonwealth School of Medicine. For all of Dr. Mackarey's articles, visit our exercise forum!
It is four months since many people have made their health and fitness resolutions and hopefully some have stayed the course. If you are looking for another reason to stick to your New Year’s Resolution to get fit and lose weight in 2024 try this…to improve or prevent hip and knee pain!
There are three major weight-bearing joints in the body, the hip, knee and ankle/foot. Consequently, wear and tear and arthritis are common among these joints. There are almost 800,000 knee replacements and 450,000 hip replacements annually in the United States alone. While there are many recommended methods to avoid or delay joint replacement, only a few are within our control. Genetics, trauma, degenerative diseases such as rheumatoid arthritis and osteoarthritis are difficult to control. However, body weight, aggressive weight bearing sports and overdoing exercises as you age like excessive running, jumping, lifting and squatting can be modified or eliminated to limit the progression of joint damage. According to WebMD, “your knees are powerhouses. They’re the biggest, strongest, joints in your body, and most people use them throughout the day to sit, stand, walk, jump, and bend. They bear 80% of your body weight when you stand still and 150% or more when you walk across the room. In a 160-pound person, that’s 240 pounds of force!”
According to the National Institutes of Health, body weight or body mass index (BMI) has a direct impact on hip and knee degeneration, pain and dysfunction. In fact, one study found that people with or at risk of significant hip/knee osteoarthritis had a 2-3% reduction in risk of hip or knee replacement for every 1% reduction in weight, regardless of the baseline BMI.
It is commonly known that the primary cause of osteoarthritis is normal wear and tear, especially for those over 50. However, extra body weight can accelerate this process. As the joint degenerates, the cartilage at the end and in between your joints gets compressed and dehydrated which leads to deterioration. Eventually, the bones rub directly on each other as the cushion wears away, leading to pain, swelling, and stiffness, loss of motion, strength and function.
While it may seem obvious that extra weight will put more strain and stress on the hip and knee joints; another mechanism involved in this degenerative process. Excess body fat can increase chemicals in your blood stream that can cause inflammation in your joints.
If you need a goal and a motive, how about this: losing even 10 pounds will equate to 40 pounds less force compressing and stressing your hips and knees. Moreover, reducing body fat will limit the hormones that cause inflammation in your joints. Talk to your primary care physician or visit www.cdc .gov to find a BMI calculator. Just plug in your height and weight and it calculates it for you. For example, a 155-pound male at 5 feet 8 inches tall has a BMI of 23.6. (A BMI of 18.5 to 24.9 is considered a healthy weight for this person).
The Mediterranean Diet is a solid start to eating healthy. It is less of a diet and more of a lifestyle. The foundation of this diet is plant foods built around vegetables, fruits, herbs, nuts, beans and whole grains. Moderate amounts of fish, dairy, poultry and eggs with limited consumption of red meat are paramount. The Mediterranean lifestyle also includes shared meals with family and friends, small portions, regular exercise, and wine in moderation with food and friends.
Exercise has many more benefits than just losing weight. Physical activity is one of the most important factors in improving a lifestyle in a positive way. A minimum of 30 minutes of physical activity, 5 days per week can greatly contribute to weight loss and longevity.
Researchers have found that the benefits of regular physical activity are numerous. Some of the more important benefits are:
Visit your doctor regularly and listen to your body.
Keep moving, eat healthy foods, exercise regularly, and live long and well
SOURCES: WebMD, National Institutes of Health; CDC, American Council on Exercise
EVERY MONDAY – Read Dr. Paul J. Mackarey “Health & Exercise Forum!” via Blog
EVERY SUNDAY in "The Sunday Times" - Read Dr. Paul J. Mackarey “Health & Exercise Forum!” in hard copy
This article is not intended as a substitute for medical treatment. If you have questions related to your medical condition, please contact your family physician. For further inquires related to this topic email: drpmackarey@msn.com
Paul J. Mackarey PT, DHSc, OCS is a Doctor in Health Sciences specializing in orthopaedic and sports physical therapy in Scranton and Clarks Summit. Dr. Mackarey is in private practice and is an associate professor of clinical medicine at Geisinger Commonwealth School of Medicine. For all of Dr. Mackarey's articles, visit our exercise forum!
Rehabilitation is defined as the process of restoring something that has been damaged to its former condition. Recovering from joint replacement surgery involves intensive rehabilitation to attain full recovery. In recent years, however, the concept of rehabilitation “before” surgery or “prehabilitation” has been encouraged by most physical therapists and other rehab professionals as an opportunity to expedite the post operative rehabilitation process.
A recent study revealed that strength training before a surgical procedure can counteract muscle wasting associated with bed rest and limited mobility after a procedure. Two systematic reviews revealed that “prehab” exercise decreased pain and complication after the surgery and improved rehabilitation following the procedure. The studies also noted that individuals rehabilitated and attained goals faster, saving time and money. Due to these findings it is our opinion that prehab is an essential part of a comprehensive rehabilitation program for total knee (TKR) or total hip replacement (THR) surgery.
Therefore, it is important to plan ahead and discuss the best “prehab” program for you with your orthopedic surgeon and physical therapist.
“Prehabilitation” enables individuals preparing for a total joint replacement to maintain or improve range of motion, strength, and endurance prior to going for a surgical procedure. We recommend doing at least 4-6 of these exercises 2 times a day to help improve the conditioning of the body prior to surgery and the overall recovery and rehabilitation process following. When completing these exercises, it is important that the movements are symptom and pain free. Should you experience any pain or discomfort with an exercise, you should not continue to perform that exercise. The goal of “prehabilitation” is to prepare the body for your surgical procedure and improve the outcomes and success of the surgery, not further injure or hurt yourself in the process. Therefore, you may not be able to complete all the exercises listed, which is okay, just do your best and what you can! In conclusion, performing exercises prior to having a total joint replacement can enhance your recovery and post-op rehabilitation, so put your best foot forward and take the right steps toward a better total joint replacement with “prehabilitation!”
More Information: For a complete list of these exercises, visit our website at www.mackareyphysicaltherapy.com or call to see how Mackarey Physical Therapy can help you!
Guest Authors: Paul Mackarey, Jr, PT, DPT, clinic director at Mackarey & Mackarey Physical Therapy and Andrea Molitoris, PT, DPT, associate at Mackarey & Mackarey Physical Therapy.
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This article is not intended as a substitute for medical treatment. If you have questions related to your medical condition, please contact your family physician. For further inquires related to this topic email: drpmackarey@msn.com
Paul J. Mackarey PT, DHSc, OCS is a Doctor in Health Sciences specializing in orthopaedic and sports physical therapy. Dr. Mackarey is in private practice and is an associate professor of clinical medicine at GCSOM.
