Tennis Elbow
Introduction
- Tennis elbow (also known as lateral epicondylitis) is an overuse injury of the forearm tendons that originate over the lateral epicondyle of the humerus (bony prominence on the outside of the elbow) and act to bring the wrist backward away from the palm
- Whilst tennis players are particular prone to this condition it does not occur exclusively to them
What causes tennis elbow?
- The forearm muscles that act to extend the wrist (lift up away from the palm) and fingers originate from the bony prominence on the outer aspect of the elbow called lateral epicondyle
- Muscles attach to a bone via a strong fibrous tissue called a tendon
- Tennis elbow arises due to injury of a specific extensor forearm muscle called extensor carpi radialis brevis (ECRB)
- ECRB is particularly active when having to extend the wrist and fingers with the elbow straight which is the most provocative position to get tennis elbow
- Tennis elbow is a type of repetitive strain injury and repeated extension of the wrist causes tiny tears of the ECRB tendon weakening it and altering its structure
- Generally it is due to:
- Overuse of the wrist extensor muscles such as excessive gripping, wringing of clothes, painting, hammering, typing
- Intensifying forearm muscle activity rapidly that body is not accustomed
- Weak forearm muscles
- Poor technique such as how a backhand tennis shot is executed
Who is at risk of getting tennis elbow?
- Tennis elbow affects 1-3% of the population
- ~50% of tennis players will get suffer from tennis elbow during their careers
- <5% of cases are related to playing tennis
- Most commonly occurs between 30 and 50 years
- Males and females are equally affected
- Those who play racket sports especially tennis are at risk
- Occupations that require repetitive forearm movements are at risk such as butchers, carpenters, plumbers, musicians, painters, those who frequently use a computer or a screwdriver and hammer
Symptoms
- Presents with pain, burning or an ache on the outside of the elbow and upper forearm which is made worse by extending the wrist
- Sometimes the pain can go lower down the outer forearm
- Weak grip
- Pain when:
- Shaking hands
- Squeezing an object
- Lifting something
- Using tools such as a screwdriver or hammer
- Opening a jar
- Turning a door handle
- Gardening
Diagnosis
- History and examination are often enough to make a diagnosis
- A simple test to confirm tennis elbow is asking the patient to go behind a chair, grip the top of it with palms facing downwards and with straight elbows to lift it up:
- If this causes pain then it is positive for tennis elbow
Is Tennis elbow a tendonitis or tendinopathy
- Numerous studies have shown that there is lack of acute inflammation in tennis elbow and therefore it is not a tendinitis but a tendinopathy
- Tendinopathy is the degeneration of the normal collagen makeup of a tendon and not an inflammatory reaction like tendonitis
- Tendinopathy is caused by numerous microtears of the tendon altering its structure
- Healthy normal tendon is composed primarily of type I collagen
- Collagen is the most abundant protein of the human body:
- Collagen is found in high proportions in connective tissues, bone and skin
- It provides strength to the tissue
- In tendinopathy as a result of the body trying to heal the microtears, there is a greater proportion of the weaker type III collagen
Treatment
- Conservative treatment is very successful (~90%) if followed correctly
- Rest:
- Resting by avoiding exertional painful activities for several weeks
- Brace:
- Tennis elbow brace can be helpful
- Ice:
- In the acute phase, ice can help relieve pain
- Anti-inflammatory medication may be effective for pain relief:
- Aspirin, ibuprofen, diclofenac
- Use sparingly due to side effects when taken long term
- Steroid injection:
- Steroid injections are currently not recommended
- Research shows that even though pain may reduce after 3-6 weeks it comes back to levels worse when compared by physiotherapy alone and healing is also delayed
- Physiotherapy:
- Exercises to help strengthen the extensor forearm muscles and promote healing of the damaged tendon
- The most effective way to combat tennis elbow is through physiotherapy exercises in particular the research proven Tyler twist (described below)
- Grip strength:
- Squeeze a rolled up towel or tennis ball for 10 seconds and release for 5 seconds
- Repeat 10 times or as many times as you can and repeat on the other arm
- Supination strength:
- Whilst sitting rest your forearm on your knee so that your shoulder and elbow are lying still
- Hold a weight from one end of it e.g. a 1.5L bottle of water end on (the amount of water can be changed pending the strength and symptoms of the patient)
- Turn your palm upwards rapidly whilst holding the weight end on
- Let the weight turn your hand facing downwards slowly
- Repeat 10 times on each side
- Wrist extension:
- Whilst sitting rest your forearm on your knee so that your shoulder and elbow are lying still
- Hold a weight with your palm facing downwards
- Whilst your palm is facing down extend your wrist by bringing your wrist upwards towards your body
- Bring the weight up fast and lower it down slowly
- Repeat 10 times on each side
- Wrist flexion:
- Whilst sitting rest your forearm on your knee so that your shoulder and elbow are lying still
- Hold a weight with your palm facing upwards towards the ceiling
- Whilst your palm is facing up flex your wrist by bringing your wrist upwards towards your body
- Bring the weight up fast and lower it down slowly
- Repeat 10 times on each side
- Towel twist:
- Hold a rolled-up towel in both hands out in front of you
- Twist both wrists in opposite directions (one wrist extends whilst the other flexes) as if you are wringing out water
- Repeat 10 times in each direction
- Tyler twist:
- To do this you will need a flexible bar that you can rotate and carry out the following movements in the sequence stated
- Hold the flexible bar vertically on the painful side with the wrist in maximum extension
- Whilst keeping the flexible bar vertically, reach across and grab the opposite end of the bar with the other hand, palm facing outward
- Continue gripping the bar firmly with the wrist on the injured side in position of maximum extension and twist the bar clockwise by flexing the uninjured wrist
- Maintain the twist whilst extending both arms out in front of you and holding the bar horizontally at the level of the shoulders with the involved wrist in full extension and the uninvolved wrist in full flexion
- Using the injured arm slowly untwist the flexible bar by flexing the extended injured wrist
- Do 3 sets of 15 repetitions a day
- Surgery:
- Considered following failure of conservative treatment in 6-12 months
- Has good results long term
Further helpful information can be found here on:

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