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| DESCRIPTION |
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A sprained
ankle is an acute injury with resultant damage to the ligaments
of the ankle. The more serious the sprain, the greater the damage
and the more tissue that may be involved. The range of damage can
go from mild damage to the ligament up to including muscle, tendon
and bone. A sprain results from a sudden movement that exceeds the
range of motion of the ankle joint. If cared for improperly, the
problem can become chronic. If treated quickly and properly, the
ankle should heal well and allow a safe and early return to activity.
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| ANATOMY |
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The
ankle joint is formed by the tibia (shin bone), the fibula, the
talus and the calcaneus. On the inside of the ankle, the joint is
stabilised by a thick, strong fibrous ligament, the deltoid ligament.
Sprains to this ligament (known as eversion sprains) account for
less than 20% of ankle sprains. On the outside of the ankle, the
joint is stabilised by 3 ligaments, the anterior talofibular (at
the front), the calcaneofibular (at the side) and the posterior
talofibular (at the back).

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Sprains
can be classified into degrees of injury, first degree being mild,
second degree being moderate and the third degree being severe.
Sprains to this side of the foot account for more than 80% of all
ankle Sprains, as the range of movement for inversion (turning of
the foot) is greater than for eversion. This is due to the anatomy
of the foot, the laxer ligaments and the fibular extending farther
than the tibia.
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| PATHOLOGY |
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Sprains
can be classified into degrees of injury, first degree being mild,
second degree being moderate and third degree being severe.
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DEGREE
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EXTENT
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TREATMENT
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PROGNOSIS
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| 1st |
Mild
tearing and stretching of ligaments |
Immediate
ice,compression, elevation for 1-2 days |
Return
to sport 3 days to 2-3 weeks |
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Mild
swelling, if any |
Strengthen
muscles |
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No
instability |
Balance
exercises |
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| 2nd |
Partially
torn ligaments |
Immediate
ice, compression, elevation for 2-3 days |
3-6
weeks before return to full activity |
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Involves
injury to 1 or more of the ligaments |
Crutches
or cane |
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Swelling
and bruising |
Physiotherapy |
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| 3rd |
Complete
rupture of 2 or more ligaments |
Immediate
ice, compression, elevation. Continue for 2-3 days |
Can
be 8-12 months for ligaments to fully heal |
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May
involve a fracture |
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Swelling,
bruising |
X-ray |
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Pain
on opposite side of sprain due to compression of tissue and
bone |
After
3 days continue compression during day
Physiotherapy
Surgery rarely required |
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1.
Previous injury.
2. Compensation for other injury.
3. Inappropriate/worn out shoes.
4. Uneven surface.
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| TREATMENT
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1.
Immediate - I.C.E.
ICE
(crushed ice in a damp towel)
COMPRESSION (tensor bandage)
ELEVATION (using pillows, elevate above level of heart)
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I.C.E.
should be applied within minutes of the injury. The sooner it is
applied, the less the secondary damage will be, meaning more effective
rehabilitation and quicker recovery.
I.C.E. is left on for 20-30 minutes. The ice is removed and compression
and elevation re-applied. Compression and elevation should be applied
constantly for 1-3 days, depending on the severity. Ice is applied
every 2 hours, for 20-30 minutes.
2.
Anti-inflammatory medication may be prescribed.
3.
Mobilisation is begun immediately. Movements Within a PAIN- FR =E
range of motion can be performed. Early mobilisation can mean a
quicker, safer recovery.
4.
Crutches should be used if the person is unable to maintain a normal
gait without pain and/or a limp. As much weight as is possible pain-free
is taken by the foot going through normal movement. The rest is
borne by the hands. As the injury heals, more weight can be progressively
taken by the foot until the person eventually 'walks out of the
crutches'.
5.
Physiotherapy can assist in achieving a full and safe recovery.
The main modality will be cryokinetics - a combination of ice and
exercise. The physiotherapist may also use ultrasound, electrical
muscle stimulation.
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| EXERCISE |
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Mobilisation
exercises are commenced immediately to prevent excessive scarring
and assist in restructuring a strong ligament. Exercises may be
uncomfortable but should not be painful.
One
set of exercises leads to the next.
1. Range of motion exercises - circles, up and down, in and out,
alphabet with big toes.
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When
range of motion in the injured ankle is equal to the uninjured, strength
exercises are started. ROM exercises should be continued.
2. Tube and towel exercises - three sets of ten for each exercise.
As this gets easier, it can be made harder by increasing tension on
the tube or putting weights or books on the end of the towel. |
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| 3.
When able to stand pain-free, proprioception exercises are begun.
Begin with standing on injured foot for 3 seconds and gradually work
up to'747'& (30 seconds each, repeat entire sequence 3 times). This
progression may take from 1 week to 3-4 months. When able to hop 10
times and stand on toes of injured ankle for 20 seconds, progress
to next step, and continue 747s on a daily basis. |
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4.
Jogging in a straight line, gradually progressing to 'S' jogging
or large '8's, and eventually to cuts, zigzags, stop and starts.
When the zigzags can be done pain free without support, athlete
can return to sport and activity.
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| RETURN
TO ACTIVITY |
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Protection is needed for the ankle for at least 6 month's, as remodelling
of the ligament is not complete until then. Taping is the best, and
supports or braces are an option. High cut sport shoes should be worn. |
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| Tube
and towel exercises and proprioception exercises, should be continued
on a daily basis, although they should be done after a practice or
game, NOT BEFORE. |
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DISCLAIMER
The information in this brochure is of a general nature. Individual
circumstances may require modification of general advice from an
appropriate health professional eg Doctor
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