HOW TO SOLVE YOUR TENNIS ELBOW
It’s ironic that the number of tennis players that suffer
from tennis elbow are said to account for 5% of all cases (Peterson and Renström, 2001).
In fact those most at risk of developing this condition are people in manual
trades (carpenters, builders, electricians, painters etc) that involve
repetitive wrist flexion and extension (imagine painting a wall) and also pro
and supination (think of turning a screwdriver). I guess ‘Painter’s Elbow’
didn’t catch on but the terms you will commonly here used to describe this
injury are: lateral elbow tendinosis, lateral epicondylitis and lateral
epicondylalgia. Each of these is an attempt to describe the underlying
pathological process, but what is actually going on inside that elbow of yours?
“What causes it?” Aetiology/Pathophysiology
Ljung et al (1999) conducted biopsies on
patients with tennis elbow and found no evidence of inflammatory markers while
Nirschl et al (1989) and Regan et al (1992) discovered degenerative changes in
the wrist common extensor tendon, synonymous with other chronic tendiopathies (achilles,
and patella etc). There are still several hypotheses as to what the main cause
of the pain is: raised glutamate levels (Alfredson et al, 2000); secondary
hyperalgesia (Wright et al, 1992) or my favourite ‘angiofibroblastic
hyperplasia’ (Brukner and Khan, 2000).
This basically suggests that in response
to the micro-damage to the tendon, the body deploys cells called fibroblasts
that begin to lay down repair tissue (granulation tissue) which contain a lot
of painful nerve endings (potentially accounting for the pain).
So what does all this mean and
what’s important for you to know? Tennis elbow is essentially an overuse injury
where the wrist extensor tendon (mainly extensor carpi radialis brevis)
undergoes microscopic tears. The tendon has a poor blood supply leading to a
continuous failed healing response as the tissue healing struggles to keep up
with the demands placed upon it.
“How do I know I’ve got it?” Signs & Symptoms
- Gradual onset of pain (24-72 hours after training or manual work)
- Pain over lateral aspect of elbow (+ or – radiating pain down forearm
- Pain shaking hands or opening doors (turning door handle)
"Who's most likely to get it?" Predisposing Factors
- Age 35-50
- Tennis player: overtraining or sudden increased frequency of play
- Faulty technique (poor back hand)
- Manual work involving repetitive wrist motions
(Peterson and
Renström, 2001)
“What else could it be?” Differential
Diagnosis
Before commencing on any
treatment regime, it’s important to confirm that the injury is actually tennis
elbow by ruling out other potential conditions first. Other causes of lateral
elbow pain are:
·
- Referred pain from cervical or upper thoracic spine Radial nerve tension
- Radiohumeral bursitis
- Synovitis of the radiohumeral joint
- Posterior interosseous nerve entrapment
- Osteochondritis dissecans (flaking of the articular cartilage and subchondral bone) of the captiellum or radius
Brukner and Khan (2000)
“How can I avoid it?” Prevention
If you’re a tennis player correcting/adapting technique will
definitely play an important preventative role in reducing abnormal stresses
placed on the wrist extensor muscles (e.g. adopting a double handed back hand
rather than single arm), along with ensuring adequate recovery between training
sessions.
Other preventative measures include checking the grip width of your
racket (should be equal to the distance from the middle of your palm to the top
of your middle finger) and replacing tennis balls on a regular basis.
If you’re in a manual trade, factory worker or in any job
that involves repetitive stress on the forearm muscles I’d advise taking breaks
when able and to regularly alternate arms i.e. not relying purely on dominant
side to do all your work.
“How do I get rid of it?” Treatment
Once a diagnosis of tennis elbow (lateral epicondylitis) has
been confirmed your physiotherapist can talk you through a range of treatment
options available to you, offer advice and education as to what movements and
activities to avoid and inform you when it’s safe to return to activity. Which
ones are most appropriate will depend on the severity and stage of the injury.
Treatment
options include:
- Graduated therapeutic strengthening and stretching programme
- Mobilisations with movement (MWM)
- Sports taping / Counterforce bracing
- DTF (Deep Transverse Frictional Massage
Non-Conservative Measures
If your
symptoms persist for more than 6-12 months and you’re unable to return to your
activity/sport despite rehabilitation from a registered physiotherapist then surgery
may be indicated. The surgery is an arthroscopic debridement of the extensor
carpi radialis brevis tendon that is generally uncomplicated and completed
within 30 minutes. 80-85% of patients regain full strength and complete relief
of pain although the surgery is always followed by a post-operative
rehabilitation programme on week 3. Steroid injections are also another option
prior to surgery if conservative measures fail to reduce pain.
References/Sources
·
·
Images sourced from www.orthogate.org, www.optimumtennis.net, www.sportstek.net, www.prolotherapy.org
·
Brukner, P., Khan, K (2000) Clinical Sports
Medicine, Australia, McGraw-Hill
·
Greene, J (1992) Cost-conscious prescribing of
nonsteroidal anti-inflammatory drugs for adults with arthritis, Archives of
Internal Medicine, 152:1995-2002
·
Peterson, L., Renström, P (2001) Sports Injuries:
Their Prevention and Treatment (3rd Ed), United Kingdom, Taylor and
Francis.
·
Ljung, BO., Forsgren S., Friden, J., (1999)
Substance P and calcitonin gene-related peptide expression at the extensor
carpi radialis brevis muscle origin: implications for the etiology of tennis
elbow, Journal of Orthopaedic Research, 17: 554-559.
·
Nirschl, R (1989) Patterns of failed healing in
tendon injury. In: Leadbetter W., Buckwalter, J, Gordon S (eds) Sports-induced
Inflammation, American Academy of Orthopaedic Surgeons, Illinois, pp 577-585.
·
Regan, W., Wold, LE., Coonrad, R., Morrey., BF
(1992) Microscopic histopathology of chronic refractory lateral epicondylitis,
American Journal of Sports Medicine, 20: 746-749.