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Lisa R. Reznick MD, PA

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Radial Tunnel Syndrome (Forearm)

  • Introduction
  • Anatomy
  • Causes
  • Symptoms
  • Diagnosis
  • Treatment
  • Surgery
  • Recovery
  • Prevention

Introduction

Radial tunnel syndrome occurs when the radial nerve in the arm is compressed.  The radial nerve travels through the radial tunnel located on the top (dorsum) of the forearm.  The radial nerve can be compressed or irritated in the radial tunnel due to repetitive movements, forceful forearm movements, or injury.  Radial tunnel syndrome causes hand weakness and pain in the forearm near the elbow.  Most cases are treated with rest, rehabilitation, and splinting.  Surgery is recommended when all other treatments have failed.
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Anatomy

Your radial nerve originates from nerve roots in the neck which then combine about the base of the neck and shoulder, and travels down your arm.  The radial tunnel is made of muscles and bones.  From the radial tunnel, the radial nerve runs underneath the supinator muscle.  It then branches out into your forearm and hand.  Near the supinator, the radial nerve branches into a sensory nerve and the motor branch called the posterior interosseous nerve. The radial nerve controls movements in the muscles on the back of your arm and forearm, which are mainly extensors.  The posterior interosseous nerve controls extension movements in your wrist, fingers, and thumb. 
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Causes

Radial tunnel syndrome occurs when the radial nerve is compressed.  This can happen if the radial tunnel is too small.  Repetitive movements, such as twisting movements of the forearm, forceful wrist movements, gripping, and pinching can irritate, stretch, or compress the nerve.  This type of injury can occur on the job, for instance in construction or manufacturing work.  A direct blow to the forearm or elbow can also injure the radial nerve.
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Symptoms

Radial tunnel syndrome causes an aching pain in the forearm.  The pain is centered a few inches below your elbow joint where the radial nerve travels beneath the supinator.  The pain may become worse when you extend your wrist, turn your palm upward (supinate), or hold something while your arm is straight out.  Your forearm, wrist, and hand may feel weak.  You may have difficulty extending your wrist, which is termed wrist drop.
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Diagnosis

Your doctor can diagnose radial tunnel syndrome by reviewing your medical history and examining your arm.  You should tell your doctor about your activities, injuries, and symptoms.  X-rays will be performed to check for abnormalities that may be affecting the nerve.  Pinpointing the location of the pain source is necessary to distinguish radial tunnel syndrome from other conditions, such as tennis elbow.
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Treatment

The most important way you can relieve your symptoms is to avoid the repetitive movements that caused the problem.  If repetitive movements are part of your job, you should take frequent breaks and modify your work duties.  An occupational therapist can evaluate your workstation and may be able to help you prevent injuries. 
 
Your doctor can refer you to a hand therapist or occupational therapist for splinting and rehabilitation.  A splint will position your arm to allow the radial nerve to heal.  At rehabilitation, you will learn proper ways to do your activities to reduce irritating the radial nerve.  Your therapist will use modalities, such as icing and heat to ease your pain.  You will also learn exercises to keep your forearm and hand muscles healthy
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Surgery

Surgery for radial tunnel syndrome is used only when all other treatment options have failed.  The goal of surgery is to relieve the pressure on the radial nerve to eliminate your symptoms.  Radial nerve surgery is usually an outpatient procedure. 
 
There are generally two approaches to the radial nerve.  There is a muscle splitting approach, which limits exposure to the region of the supinator muscle, or an extended approach that addresses all possible sites of radial nerve compression in the forearm.  Your surgeon will decide which approach is most appropriate for your case.  Tissues that are compressing your radial nerve are incised, easing pressure on the nerve.  At the end of the procedure, your skin is stitched and bandaged.  You will wear a splint on your arm and participate in rehabilitation therapy for several weeks.
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Recovery

Recovery from radial tunnel syndrome is different for everyone.  Your recovery will depend on the extent of your condition, the type of treatment you received, and your compliance with therapy and splinting.  Recovery following surgical treatment can take months.  You should experience improvements in about four to six weeks with nonsurgical treatments.  Your doctor will let you know what to expect
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Prevention

You may prevent radial tunnel syndrome by avoiding repetitive movements including twisting the forearm, extending the wrist, and gripping.  It is important to take frequent breaks if you must perform these motions.  It is helpful to have an occupational therapist examine your work site to make modifications to possibly prevent injuries.

If you experience radial tunnel syndrome, you may enhance your recovery by complying with your splint wearing schedule and attending all of your rehabilitation therapy appointments.  Practice your home therapy exercise program.  Integrate activity modifications to protect your radial nerve.
 
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This information is intended for educational and informational purposes only. It should not be used in place of an individual consultation or examination or replace the advice of your health care professional and should not be relied upon to determine diagnosis or course of treatment.

The iHealthSpot patient education library was written collaboratively by the iHealthSpot editorial team which includes Senior Medical Authors Dr. Mary Car-Blanchard, OTD/OTR/L and Valerie K. Clark, and the following editorial advisors: Steve Meadows, MD, Ernie F. Soto, DDS, Ronald J. Glatzer, MD, Jonathan Rosenberg, MD, Christopher M. Nolte, MD, David Applebaum, MD, Jonathan M. Tarrash, MD, and Paula Soto, RN/BSN. This content complies with the HONcode standard for trustworthy health information. The library commenced development on September 1, 2005 with the latest update/addition on February 16, 2022. For information on iHealthSpot’s other services including medical website design, visit www.iHealthSpot.com.

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Dr. Reznick did major surgery on my right hand (carpal tunnel and 3 trigger fingers). Prior to the surgery, I could not hold a pen or write my name legibly. I was in constant pain. After the surgery, while the stitches were still in and the brace still in place, I had more flexibility in my fingers than I had before the surgery. I am six weeks out from the surgery and I continue to progress. I have more functionality and strength in my hand than I have had in the last year. I can't even see the scars on my hand. Dr. Reznick not only did a spectacular job of restoring the use of my hand, but she is a very likable person. Her staff is friendly and professional. I cannot say enough good things about this experience!

Nancy L.

via md.com

Seeing Dr. Reznick and being treated by her is like going to heaven with millions of angels. She can not only treat your hand, she treats the soul. She is the best!!!

Les D.

via healthgrades.com

Amazing visit. I can't remember the last time I spent quality time with a doctor. She explained everything to me on why I was having trigger finger issues. I have been dealing with this for some time. She nailed it on the first visit ‘cause she talks to you and listens! If you need a hand doctor you will be happy she is the one.

Anonymous

via healthgrades.com

Dr. Reznick is one of the most professional, sensitive and caring physicians I have visited. She is a teacher--patient and informative, and she made sure I understood just exactly what was necessary for my particular problems. She took care of both my left and right carpal tunnel surgeries, and I couldn't have asked for a better recovery. Everything went just as planned. She is my ‘go to’ hand doctor!

Anonymous

healthgrades.com

When I was having problems with my wrist, she guided me through every step, and always made sure I was comfortable with what she was doing. Very straightforward and trustworthy. I never doubted what she was doing and she always wants to try every technique before doing surgery to try to make you better.

Shannon C.

healthgrades.com

I recently rode 900 miles on a vibrating Harley-Davidson and did not have a single tingle in either of my hands. You do great work. Thanks for helping me.

Ed G.

Just wanted to let you know again how much I appreciated your care, expertise and skill in conducting the surgery on my hand. A job well done. Thank you.

Randall A.

My surgery went very well. My banjo and I thank you.

Kevin M.

Dr. Lisa Reznick has performed carpal tunnel surgery on both hands and has removed my basal joint from my right hand. All of my surgeries have been successful, and I now have complete use of both hands and my right thumb, which I credit to a great surgeon, good therapy, and a genuine concern for patients.

Robert

My hand is in perfect working order because of your expertise. I appreciate your genuine concern for my healing. Through the myriad of maladies my husband experienced, I became acquainted with many doctors. None even approached your level of patient care.

Trudy R.

Dr. Reznick performed surgery on my hand for ‘trigger finger’ and did a wonderful job. I’ll definitely user her again if the need ever presents itself again.

Don L.

Dr. Reznick is very to the point and no nonsense. She tells you what options there are in your treatment and advises you accordingly. I had hand surgery four years ago and it was a complete success. I actually went back to work one week early. I have recommended Dr. Reznick to many friends and associates. Frankly, I won’t go to anyone else when it comes to muscles or bones. I have complete faith in her.

J. Schully

via vitals.com
Testimonials

Dr. Reznick did major surgery on my right hand (carpal tunnel and 3 trigger fingers). Prior to the surgery, I could not hold a pen or write my name legibly. I was in constant pain. [Now] I have more functionality and strength in my hand than I have had in the last year. I can't even see the scars on my hand. Dr. Reznick not only did a spectacular job of restoring the use of my hand, but she is a very likable person. Her staff is friendly and professional. I cannot say enough good things about this experience!

~ Nancy L. via md.com

Lisa R. Reznick MD, PA

Board Certified Orthopedic and Hand Surgeon

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4100 Fairway Court, Suite 120
Carrollton, TX 75010
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In Carrollton, TX, board-certified orthopedic surgeon Dr. Lisa Reznick offers conservative treatment options for all types of general orthopedic issues, while specializing in surgeries of the hand, wrist, and elbow.