Will My Child Develop Chronic Traumatic Encephalopathy or CTE?

Parents Express Concern over Chronic Traumatic Encephalopathy

Many parents are increasingly concerned about chronic traumatic encephalopathy. In order to provide insight into this issue, Shawn Love B.S. and Dr. Gary Solomon at Vanderbilt University Medical Center in Nashville, Tennessee, wrote an informative article: “Pain Physicians’ Corner” published in the American Journal of Sports Medicine in May 2014.

If you are interested in learning more about chronic traumatic encephalopathy, follow along for some helpful information.

What is Chronic Traumatic Encephalopathy or CTE?

Chronic traumatic encephalopathy is a condition developed from repetitive hits to the head or a concussion that can only be diagnosed postmortem. There is no testing that can be done at this point to diagnose CTE. There have been a series of studies conducted in football players that have died with early onset dementia, their brains have been evaluated by a pathologist and found to have abnormal TAU protein. CTE clinically can lead to neuropathic changes and development of a series of neuropsychiatric conditions, behavior changes, and cognitive deficits.

Chronic traumatic encephalopathy and cognitive effects of CTEThe final diagnosis is made postmortem when the brains are identified and found to have increased TAU protein and widespread neurofibrillary tangles (NFTs). In the past, CTE was called punch drunk syndrome. Doctors, such as Ann McKee, and Dr. Bennet Omalu (is most famously known for his lead role in the movie Concussion, which Will Smith was the actor representing Dr. Bennet Omalu). These doctors have suggested that CTE has a clear environmental origin. The groups have proposed that head injury, both concussive and sub-concussive, leads to neuropathic changes and the subsequent development of a series of neuropsychiatric symptoms, behavior changes, and cognitive defects.

What are the symptoms of CTE and when does it start?

In general, CTE is described as comprising a broad set of clinical signs and symptoms including neuropsychiatric and behavioral changes such as depression, mood lability, agitation, impulsive behavior, and aggression, Parkinson’s disease, difficulty speaking, gait abnormalities, and cognitive defects including impairments in memory, attention, and language.

CTE has been described as a syndrome that manifests within one to two decades after retirement from contact or collision sports. There are some studies that indicate CTE may start as late as 10 to 20 years after retirement.

Are concussions the only cause of an abnormal TAU protein formation in the brain?

The answer is no. There are actually 20 different neuropathic conditions that cause TAU protein aggregation in the brain including Alzheimer’s disease, which is dementia, front temporal dementia, and Lewy body disease, which is another form of dementia. All the brains that have TAU proteins have some type of degenerative brain disease.

Another condition that can cause greater incidence of abnormal TAU protein deposition in the brain has been found in drug abusers, people who abuse opioids. There was a study that looked at opioid abusers less than 40 years of age compared with controlled who are not using opioids, and they found greater incidence of TAU protein deposition in their brains compared to the controlled group, 44% versus 19%, and at parallel findings. They found that more than half, 52%, of the 644 surveyed players (more…)

Top 9 Things to Know About ACL Injuries

Things to know about ACL injuriesAnterior Cruciate Ligament, often referred to as ACL injuries, are the most common knee injuries athletes suffer. While an extremely active individual could possibly suffer this type of injury, an ACL tear is most common in athletes. This is because of the stop and start movements associated with sports such as football, basketball, hockey and more. The anterior cruciate ligament is on the inside of the knee joint and supports the shin bone. The ligament, knee, and shin work together to prevent the tibia from sliding out in front of the thigh bone.

When Do ACL Injuries Occur?

An ACL injury is most likely to occur if an athlete is hit hard on the side of their knee. The sudden force overextends the knee joint. This same pressure is recreated by stopping and changing directions during a run or jump which also causes ACL injuries. A “popping” noise is heard as a result of ACL injuries quickly followed by pain and swelling.

ACL injuries are becoming more common among individual athletes for quite a few reasons including: increased level of competition, specialization in one single sport, and failing to take precautions against this injury. You can never prepare your mind for this type of injury or the amount of recovery and rehabilitation time is needed to overcome an ACL injury, but you can definitely prepare your body. Dr. Stacie Grossfeld at Orthopaedic Specialists wants to educate her clients on ACL injuries with some important information.

Important Information About ACL Injuries:

  1. The Centers for Disease Control and Prevention (CDC) found that girls are 8 times more likely to suffer ACL injuries over boys because of the increased pelvic angles that put more stress on the knees.
  2. While many people think that ACL injuries most often occur in contact sports, about 70 percent of ACL injuries actually occur during non-contact sports.
  3. Half of people who suffer an ACL injury will develop osteoarthritis later in life.
  4. Sports like football, soccer, and basketball show a higher risk of ACL injury than most other sports due to the high amount of running and direction changing that occurs during these sports.
  5. It is best to treat the symptoms of an ACL injury with rest, ice, and elevation. Always consult a physician before returning to sports following a knee injury.
  6. Many famous athletes have recovered fully from ACL injuries and surgery like Green Bay Packers wide receiver Jordy Nelson, American soccer player, Olympic medalist, and FIFA Women’s World Cup champion Alex Morgan, and Russian tennis superstar Maria Sharapova.
  7. There are ways to prevent ACL injuries with strength, proprioception, and biofeedback training. Warming up for these exercises is crucial and all exercises should be completed regularly to reduce risk of injury. This training and exercise can help improve your knee strength while also enhancing one’s athletic performance. It’s a win-win.
  8. Surgery is recommended most of the time that an ACL injury occurs. This could be the beginning of a difficult recovery, but it allows athletes and active individuals to return to their game or workout at a much faster turnaround rate than other treatments.
  9. ACL surgery has a recovery period of anywhere from six to eight weeks or longer. Recovery requires a lot of rest, ice, and even physical therapy. It is best to begin recovery as soon as possible.

If You Have An ACL Injury

All of this information is important when it comes to ACL injuries. With this type of injury it is best to begin with prevention and then focus on recovering from injury if it arises. (more…)

Does Diabetes Affect The Outcome Of An Arthroscopic Rotator Cuff Repair?

Diabetes affects individuals that have a high blood glucose or blood sugar. Either the insulin production is not enough or a person’s cells do not respond properly to insulin, or in some cases both. This disease can lead to complications later in life if it goes undetected. Because diabetes can affect every organ in the body, it is very important for individuals with diabetes to take proper care. If you have diabetes or this disease runs in your family, it is important to recognize its symptoms and control it.

As diabetes can slow the progress of healing, many Surgical outcomes for patients with diabetes that undergo arthroscopic rotator cuff repairphysicians are concerned with surgical outcomes in patients with diabetes. Several studies, papers and research has been published on diabetes and surgery. In one example, a doctor wanted to take a closer look at the effects of arthroscopic rotator cuff repair and surgery in individuals with diabetes. Here is what was published in the American Journal of Sports Medicine in April, 2015.

Diabetes and Arthroscopic Rotator Cuff Repair – Research Findings

Dr. Cho, studied a group of patients that underwent arthroscopic rotator cuff repair surgery. They divided the patients into two groups. One group had insulin dependent diabetes, and the second group were non-diabetic patients. They found that the diabetic group, the incidence of recurrent rotator cuff tears after surgery was 35% compared to the re-tear rate in a non-diabetic group that was 14%.

The authors/researchers then assessed a group of patients with diabetes, and analyzed whether their diabetes was under control or not. They found that the uncontrolled diabetic patient with poor glycemic control with a hemoglobin A1c that was elevated had a recurrent tear rate of 43.2% versus patients that had good glycemic control, the retear rate was only 25.9%. (more…)

High Cholesterol and Rotator Cuff Repair Surgical Recovery

Does High Cholesterol Impact Rotator Cuff Healing After Surgery?

Rotator cuff tears are a common condition that cause pain and functional disability. About half of the general population older than 60 years of age has either a partial or full thickness rotator cuff tear and they are completely asymptomatic.

Surgery to repair the rotator is widely practiced and has been commonly accepted for treatment of full thickness rotator cuff tears or partial thickness rotator cuff tears greater than 50%. Despite the fact the surgeon performs an excellent surgery, 20 to 94 percent of rotator cuff repairs do not heal or they re-tear.

Researchers Conduct Study to Understand Impact of High Cholesterol and Rotator Cuff Repair

Dr. Chung performed a study looking the relationship between high cholesterol and rotator cuff repairs. He wanted to understand whether cholesterol levels play a role in reducing rotator cuff healing after surgery. The author published the study in the American Journal of Sports Medicine, May, 2016. It was a lab study performed with rabbits.

High Cholesterol and rotator cuff repairResearchers note that fatty infiltration is one of the most important prognostic factors for anatomic and functional outcomes after rotator cuff surgery. The surgical repair of the torn rotator cuff may not be able to stop or reverse the process of fatty infiltration. Fatty infiltration is when the rotator cuff tendon and muscle turns to fat.

Interestingly, a high serum cholesterol concentration greater than 240 mg/dL also occurs typically in people’s legs right around when there was a high incidence of rotator cuff tears. They thought that possibly this was a metabolic risk factor.

What the researchers found is that if they reduced the high cholesterol in the blood level, it would promote rotator cuff healing.

Study Overview: High Cholesterol and Rotator Cuff Repair Surgery

The authors used the series of 48 rabbits that were randomly allocated into four groups. After four weeks of a high cholesterol diet in group A and group B, and a regular diet in group C and group D, the supraspinatus tendon was detached. That is, the rotator cuff was torn and left alone for six weeks, and then it was re-torn in a transosseous manner. This is the common way the rotator cuff is repaired in groups A and B which was a group that had the high cholesterol diet, and group C which was a group that had a regular diet. They used group D as a control.

Group A continued to receive the high cholesterol diet until the final evaluation six weeks after the repair. Group D was changed to a general diet with administration of a cholesterol lowering agent-simvastatin.

Researchers then performed histological evaluation of fat to muscle proportion. They found that high cholesterol levels had a deleterious effect on fatty infiltration. Additionally, lowering cholesterol seemed to hold or reduce the harmful effects in the experimental model based on the quality of tendon-to-bone repair.

This study suggests that more needs to be done to understand the relationship between high cholesterol and rotator cuff repair. The conclusion of the study was that systematic diseases such as high cholesterol may need to be tightly controlled through the preoperative period of rotator cuff repairs.

Christmas Tree Decorating at Orthopaedic Specialists in Louisville Kentucky

Christmas Tree Decorating at Orthopaedic Specialists

Red & Gold Christmas Tree


Dr Stacie Grossfeld at Orthopaedic SpecialistsDr. Stacie Grossfeld
, board certified Orthopedic Surgeon and Sports Medicine Physician, enjoys some holiday Christmas tree decorating with her team at Orthopaedic Specialists. She chose a red and gold theme for her Christmas tree decorating. In order to find the decorations, Dr. Grossfeld went to Joanne’s Fabrics and Michael’s and looked for pretty decorations that fit the tree.

Favorite holiday tradition: “Along with spending time with my family and friends, I love putting up the trees at my own home. We have four full-sized Christmas trees fully decorated.”

 

 

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Blue, Silver & White Christmas Tree

Christmas Tree decorating at Louisville Orthopedic OfficeAngel McDowell works in the insurance and billing department at Orthopaedic Specialists. She chose a silver and blue theme for her Christmas tree decorations. Talking about how she chose her decorations, Angel explains: “Me and my son Abram (age 13) were shopping and he helped me pick out the colors for my tree, which was nice.”

Talking about her Christmas tree decorating at home, Angel explains that it is much more colorful with all the ornaments she’s collected with her family over the years.

Favorite holiday tradition: “I love it when everyone comes to my house for the holidays and I get to spend time with my family. It is really special when my daughter comes home from college.”

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 Star Wars Theme Christmas Tree

Louisville sports medicine and orthopaedic practiceAngel Porter is a physician assistant at Orthopedic Specialist PLLC in Louisville, Kentucky. She chose a Star Wars theme for her Christmas Tree decorating. Talking about how she found the decorations, Angel explains: “I raided my boys’ (James, 11 and Noah, 9) rooms and used their legos for the trees. I also found the ribbon at home. The hardest part of making the tree was tying the ribbon at the top. Figuring that out took a while!”
When she brings the tree home, Angel said that she’ll give it to her son Noah for his bedroom.
Favorite holiday tradition: “We love to kick off the holiday season with a visit to the Mega Cavern to see all the lights!”

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Dr. Seuss Themed Christmas Tree

Dr Seuss Themed Christmas Tree Ashley is an X-Ray Tech and Medical Assistant at Orthopaedic Specialists. She chose a Dr. Seuss Theme for her Christmas tree. Ashley enjoys searching Pinterest for good tree decorating ideas and that’s how she settled on the Dr. Seuss theme. After Christmas, she’ll enjoy taking the tree home to her 3 children, ages 5, 8 and 9.

Talking about her tree at home, Ashley explains that she uses different types of decorations that include owls and squirrels.

Favorite holiday tradition: “Putting up our Christmas tree at home. We do this the day after Thanksgiving!”

Favorite holiday food: “We love chicken and dumplings.”

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My Old Kentucky Home Christmas Tree with Handmade Decorations

Handmade ornaments on Holiday Tree Dorothy Cochran runs the Medical Records Department at Orthopaedic Specialists, and she also serves as the Work Comp Coordinator and Appointment Scheduler. When she started figuring out how to decorate her Christmas tree, she went to Hobby Lobby.

Dorothy explains, “I always find a lot of inspiration at Hobby Lobby. While shopping around, I saw some scrapbooking stickers and realized I could turn those into ornaments. And at the base, I used a real horse shoe. My brother works as a farrier in New York and I was able to get it from him.” Dorothy also used twine, burlap and red silk roses to decorate her tree.

Favorite holiday tradition: “My favorite is our Christmas Eve tradition when we have pizza under the tree. We make homemade pizza and buy root beer in the bottle and eat the treats that our neighbors and friends bring to us.”

Favorite holiday food: Pumpkin pie, hands down!

Favorite holiday song: All I want for Christmas is you – by Mariah Carey

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Country Classic Christmas Tree Decorations

Heather Hardiman is a Medical Receptionist at Orthopaedic Specialists in Louisville Kentucky. She decorated her Christmas tree according to the style that she likes in her home. She used stars, berries, snowmen and woodsy ornaments.

Favorite holiday tradition: “My favorite holiday tradition is having my family come together in one location and making good memories.”

Favorite holiday food: “I love cabbage casserole.”

Favorite holiday song: “Oh Holy Night”

 

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Silver, White & Blue Tree with Big Topper

Louisville orthopedic practice decorates trees for Christmas.

Lindsay Rhodus has been working at Orthopaedic Specialists for more than 8 years. She chose a special silver topper with berries and sparkle to go on her Christmas tree.

In terms of tree decorating, she explains, “I was thrifty and used materials that I already had. I did all the decorating on my own with a silver, white and blue theme.”

Favorite holiday tradition: “I love Christmas eve at my home with my husband and two boys Zach age 10 and Brennan age 14. As part of our family tradition, we all get into our new pajamas and open one gift.”

 

(more…)

Exciting Things Happening at YMCA Norton Commons

YMCA Norton Commons A Popular Fitness Spot

YMCA Norton Commons Swimming Pool for families

YMCA Norton Commons Swimming Pool. Photo Credit: YMCA.

This December, it’s predicted that the Norton Commons YMCA, located at 11000 Brownsboro Rd, Prospect, KY 40059, will have 500,000 member check-ins for the calendar year. This equates to 1.52 visits every minute. With 11,000 total members, representing 4,000 households, that’s A LOT of people using the YMCA Norton Commons. And this is up from 461,837 visitor check-ins during 2015.

Like other area-YMCAs, the facility offers a wide variety of activities including swim lessons and group fitness classes, plenty of exercise equipment, an indoor track and kids camps. But unlike many other YMCA branches, the YMCA Norton Commons has also forged an interesting partnership with the Jefferson County Public School system. This is one of very few YMCAs in the country that offers this type of partnership.

YMCA Norton Commons Partners with Jefferson County Public Schools

While the partnership between the YMCA Norton Commons and JCPS is quite extensive, one of the most unique projects probably involves the shared gymnasium.

Norton Commons Elementary

Norton Commons Elementary – Photo Credit: Jefferson County Public Schools.

Norton Commons Elementary School and the YMCA Norton Commons split the expense of a gymnasium and created a facility that connects to both of the organizations.

The shared gym has more amenities than either organization would have been able to offer independently. This includes a stage and retractable bleachers with motion-sensor lighting.

The close proximity between the two organizations, including the shared gymnasium, has facilitated many more opportunities to impact health and (more…)

Dr. Grossfeld Attends YMCA Mayor’s Community Thanksgiving Breakfast

grossfeld at ymca of greater louisville eventOn the 22nd of November, YMCA of Greater Louisville Chairman, Brad Smith, and Mayor Greg Fisher held a community Thanksgiving breakfast. Dr. Grossfeld attended the event at the Galt House Hotel to learn more about the growth of the Louisville community. The event included a delicious buffet and a performance by America’s Got Talent finalists – Linkin’ Bridge.

At The Event

At the event, John Yarmuth gave a brief speech with a message that hits close to home this day and age. Yarmuth spoke of humanity needing “harmony across the nation” and how community development is one way to achieve peace. Mayor Greg Fisher also spoke at the breakfast event and went over the past year of development in Louisville. The numbers related to growth in jobs, businesses, and educational gains were all high.

In the last year Louisville has supplied 5,500 new jobs and opened 2,500 new businesses, as per Mayor Fisher. Additionally, 10,000 people have entered the middle class and 44.7% of citizens have a 2-4 year college degree.

While at the event, Dr. Grossfeld learned more about the YMCA of Greater Louisville and the core values they hold. The values aligned quite closely to the same values Dr. Grossfeld carries into her office – Orthopaedic Specialists. With values focusing on health, education, connecting people, accessibility, and well-rounded character and ethics, Orthopaedic Specialists gives top of the line care and commitment to patients.

The YMCA of Greater Louisvilleymca of greater louisville sign

The Y, in turn, provides the same commitment and care to the community in which it’s based. The YMCA of Greater Louisville has been open since 1853 and was the 10th YMCA to be founded in the United States of America. They assist with youth development by providing the largest before- and after-school care program in the state and have brought many other great causes to Louisville. Social responsibility also plays a large role in the mission of the Y. This is evident around all of Louisville through the Safe Place locations founded over 30 years ago. Finally, they strive to improve the health of children and adults in Louisville through their healthy living initiative.

Interested in learning more about the YMCA of Greater Louisville? Visit their website. If you are in need of child care services, Youth Development at the Y is a good place to start. If social responsibility interests you and you want to volunteer the Safe Places Services is always in need of assistance. Additionally, if you are in a crisis and need a safe place to stay, find your local Safe Place. Finally, if improving your health is high priority for the New Year, contact Dr. Grossfeld at Orthopaedic Specialists to start your journey.

lincoln-bridge

Total Hip and Knee Arthroplasty in Patients Older Than 80 Years

We are grower older as a nation at a rapid rate. In fact, the fastest growing age group in the US includes people 65 years old and older. Between 2000 to 2010 the growth rate for this segment of the population was 15.1% while the rest of the population grew at a rate of 9.7%.

Among those age 65 and older, the subgroup that had the most rapid rate of growth includes those ages 85 to 94 years. This group grew from 3.9 million to 5.1 million (30%) between 2000 and 2010.

And growth rates for those 95 years old and older were also impressive.

From an orthopedic preceptive this means that there will likely be a hiphigher incidence of orthopedic conditions associated with age including osteoporosis and osteoarthritis.

It is predicted that demand for total knee replacements will increase 673% by the year 2030 and total hip replacement demand will increase 174%. It is also predicted at there will be an increase in the number of patients that undergo joint replacement surgery who are over the age of 80.

Perhaps not surprisingly, as we age, the risk and complication rate at the time of surgery tends to increase.

Authors Lee Rubin, M.D. et al. in the October 2016 American Academy of Orthopedic Surgeon Journal reported on total hip and knee arthroplasty in patients over a 80 years old.

Three major studies combined data comparing two large age groups and their respective post operative complication rates: over age 80 and under age 80. The researchers found that the mortality rate under age 80 was 0.3 – .08% compared to 3.2-17.1 percent for patients over age 80. (more…)

Sports Injury FAQs

Sport Injury FAQsSports injuries, such as concussions and injured Anterior Cruciate Ligaments (ACLs), are common occurrences across a wide variety of sports. While both injuries are well known, Sport Injury FAQs are helpful in learning about cause, prevention, and treatment among athletes.

One very common topic of sport injury FAQs are concussions. They are very common injuries in sports and are also difficult to diagnose. A concussion is a traumatic brain injury that affects the way the brain functions. While the effects are temporary, concussions do have the potential to leave long term, lasting effects on the brain. Most people associate concussions with head injuries. Few know that concussions can also be caused by being violently shaken or impacted which occurs often in contact sports. Follow along for important sport injury FAQs from Louisville sports medicine physician Dr. Stacie Grossfeld.

Sport Injury FAQs

What is the average return to playtime in the NBA in reference to a concussion?

Dr. Padaki, et al, published in the September 2016 issues of the American Journal of Sports Medicine that the number of concussions involving NBA players from the beginning of 2006 to the end of the 2014 season has not changed; however, what has changed is that the time a player sits out of games after getting a concussion has increased.

While players often returned within the same game in the 2006 season, NBA players are now missing games. Players sit out an average of five games after getting a concussion.


While concussions are common sports injuries that need to be taken seriously, they are also quite easy to recover from when not extremely detrimental and diagnosed early. An ACL injury, on the other hand, is a serious muscle injury that comes with a long recovery time regardless of if your injury is nonsurgical or surgical. Part of that recovery time includes heavy physical therapy which plays an important role in regaining strength in the muscles and getting back into your normal routine. Injured ACLs are another hot topic in Sport Injury FAQs because the ACL is not as commonly discussed as concussions are and people have many more questions about them.

Does age influence the risk of knee osteoarthritis after traumatic ACL injury?

Studies have shown that the risk of osteoarthritis after sustaining an ACL injury can increase by up to 85%. The question authors answered in a 2016 article published in the American Journal of Sports
Medicine was “does age specifically influence the risk of osteoarthritis occurring after an ACL injury?”

Dr. Victoria Jonson, et al, reported on a group of patients who had undergone primary ACL reconstruction over a 15-year period. She found that the age of the athlete in which the injury occurred did not influence the rate of incidents.

What they did find is that the middle aged athletes were likely to encounter osteoarthritis in the endpoint soon. That could also be explained by the fact that osteoarthritis can be part of the natural aging process.

What is the hormone, Relaxin, and does it have any effect on an ACL injury?

There was an excellent article written in the September 2016 Journal of American Sports Medicine. Jacqueline Konopka, BS, at Stanford Medical Center looked at the hormone, Relaxin, and its effects on female ACL ligament cells.

It is a fact that female athletes sustain ACL injuries 2 to 8 times more often than male athletes. Specific gender related factors like: anatomy, biomechanics, and hormones may contribute to the disparity in tear rates between the genders. The author specifically wanted to investigate if the female hormone, Relaxin, could affect ACL cells.

The Study

This was a laboratory study in which ACL cells were primed with estrogen and treated with Relaxin. The authors wanted to find out if potentially blocking the hormone could affect ligament strength. There are some completed studies that reveal that a lead female athlete with an ACL tear had higher levels of Relaxin concentrations circulating through their bodies in comparison to a female athlete without any injury. Additional studies have shown that animals treated with Relaxin had significantly weaker ACLS as measured by load to failure testing in comparison to controls.

During the study, it was also considered that men do have significant serum levels of the hormone Relaxin. It is possible that chronic Relaxin exposure among women decreases the integrity of the female ACL which in turn contributes to the gender disparity in the ACL injury prevalence.

Background

Background information as to the structure of the ACL includes that it is primarily composed of Type I, Type II, and Type III Collagen.  Type I Collagen is the most abundant matrix component and is responsible for the majority of the ACL’s tensile strength. Type II Collagen is found at fibrocartilaginous areas of the ACL that undergo high levels of sheer force. The main type of collagen is Type III which is synthesized during the early stages of ACL healing.  Degradation of these important ACL matrix components could possibly lead to a higher risk of ACL injury.

Research Process

It is known that Relaxin promotes connective tissue degradation by decreasing levels of collagen and alpha smooth muscle actin as well as decreasing transforming growth factor beta activity by inhibiting certain enzymatic pathways.  Because of this, it has been theorized that chronic exposure to Relaxin does predispose the female athlete to an increased risk of ACL injury.  What the researchers found is that the hormone Relaxin did not bind to male ACL tissue, but did bind to female ACL tissue suggesting a differential gender dependence response to Relaxin.

They also found that female ACL cells that had been exposed to oral contraceptive did not have similar regulation or experience the binding effect of Relaxin, so the authors concluded there may be a protective effect to ACL injuries if a female athlete is taking an oral contraceptive. There are some clinical studies that have suggested this as well.

Results

The result of the laboratory study was that chronic Relaxin exposure could biomechanically compromise the integrity of the female ACL by decreasing collagen level production.

Some clinical studies in the past have revealed that female athletes with serum Relaxin levels greater than 6.0 pg/mL were found to have over four times increased risk of ACL injury that females with lower levels of the hormone in their bodies.

The researchers felt that the goal would be to enroll the women at higher risk for ligamentous injury into  a prophylactic injury prevention program to decrease the gender disparity in the female athlete spectrum.


These Sport Injury FAQs are much more detailed questions and elaborate answers due becuse Dr. Stacie Grossfeld wrote them. Dr. Grossfeld is a Louisville, KY orthopaedic surgeon and sports medicine specialist. In addition to her practice as an orthopaedic surgeon, Dr. Stacie Grossfeld is an Assistant Clinical Professor at UofL in the Department of Family Medicine. She also assists at the Department of Internal Medicine and Pediatrics. She is a member of Baptist Sports Medicine and enjoys serving as the Team Doctor for South Oldham High School. In addition, Dr. Grossfeld is the Team Doctor for Assumption High School in Louisville, KY.

Tommy John Surgery For Major League Baseball Pitchers

Predictors of the Tommy John Surgery / Ulnar Collateral Ligament Reconstruction in Major League Baseball Pitchers

Can we predict who will need Tommy John Surgery?

This is a hot topic right now in field of orthopedic surgery.  We have seen great rise in the incidents of ulnar collateral ligament injuries resulting in baseball players needing Tommy John surgery.

There was an excellent article written by Dr. David Whiteside, et al, in the September, 2016 American Journal of Sports Medicine that specifically looked at risk factors that can predict major league baseball pitchers that would need a Tommy John surgery.

baseball-playerResearchers highlighted background data noting that there is concern right now and actually discussion that the ulnar collateral ligament injury is almost an epidemic affecting pitchers at all levels of baseball from recreational high school players to the pro pitchers.  The ulnar collateral ligament reconstruction surgery has been reported to impose an average of 17 to 21 months away from the MLB competition and possibly diminish their performance.  If there is a way to curtail the current trend and protect the integrity of the elbow joint in pitchers, that would be the best form of treatment would be prevention.

There has been some effort made to help reduce the risk of ulnar collateral ligament injury such as limiting the amount of pitches per game.  Currently in the MLB, there is a maximum of 100 pitches per game.

Major Risk Factors For Tommy John Surgery / Ulnar Collateral Ligament Repair

The particular study detailed above identified the risk factors for professional baseball pitchers sustaining an ulnar collateral ligament injury resulting in a Tommy John procedure.  The researchers found six risk factors that led to increased incidents of Tommy John surgery.

  1. Fewer days between games.
  2. Fewer pitch types employed.
  3. More pitches per game.
  4. Greater pitch speed.
  5. A less pronounced horizontal release location.
  6. A smaller stature of the player.

The authors noted that the current findings supported the theory that recovery periods after MLB pitching are critical for reducing injury, a point previously specified at the youth level.  This also endorsed the rationale for multi-pitcher rotations in MLB.  They also found that if an extra day between games reduces the UCL injury, the value of a six man pitching rotation as opposed to the conventional five, and/or larger bullpens is obvious.

Another interesting and statistically significant finding that the researchers reported was that a pitcher’s odds of undergoing a Tommy John procedure decreased by 33% for each unique pitch type that he possessed in his repertoire. This means that pitchers that throw different types of balls/pitches would have a lower incidence of injury to their ulnar collateral ligament.  They did note that one of risk factors was speed which obviously is not going to be changed among the pitchers, that would be considered a non-modifiable risk factor. (more…)