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HEALTH:
Common Alpine Skiing Injuries
By Jeff Gundel,
MD
Alpine skiing is
a safe and popular sport, but on any given day, 3-4 out of 1,000 skiers
will sustain an injury requiring medical attention. Deaths related to
skiing are rare, but well publicized. Each year in the United States,
ten times more people drown in their bathtubs than die skiing. Preparation
along with some common sense will prevent many injuries. We will discuss
some ways to avoid injury and then review some common injuries and their
treatment.
Old habits die hard,
so beginning skiers should avoid learning bad techniques that are difficult
to correct later. Professional instruction is important, especially for
the beginner.
Prevention of injury
starts with obtaining the right equipment for your size and skill level.
This equipment should be well maintained. Being realistic about your skill
level is critical when choosing ski size and binding adjustment. The new
style of shaped skis account for more than 90% of ski sales. They allow
for easier turning but have a higher incidence of knee injuries.
Helmets have become
popular after several high profile head injury skiing deaths. Children
should be encouraged to wear a properly sized helmet, just as they would
when bicycling or inline skating. Remember that wearing a helmet does
not make you invincible and even if you are wearing a helmet, the tree
always wins.
Despite the best
preparation and caution, injuries will occur. The knee is the most commonly
injured body part and the most commonly injured structures within the
knee include the medial collateral ligament (MCL), anterior cruciate ligament
(ACL), and meniscus. The top of the tibia, or the tibial plateau, is the
most common knee fracture.
The medial
collateral ligament is a tight band of tissue on the inner side
of the knee. It helps prevent abnormal bending. When stressed or twisted,
the ligament is sprained. A sprain is a tear in the ligament and can be
partial or complete. MCL injuries account for 20-25% of all ski injuries
and occur in all skill levels. Beginning skiers 'snowplowing' sustain
MCL injuries when they fall, usually after their stance suddenly widens
or their skis cross. Experienced skiers tear their MCL by 'catching an
edge' causing the knee to suddenly twist. When examined, the knee is swollen
and painful. Swelling inside the joint suggests a more severe, or complete
tear, and may also involve an ACL or meniscal tear. Initial treatment
of all knee injuries is rest, ice, compression and elevation. Minor sprains
do not require any further treatment, but significant sprains should be
braced until healed. Severe sprains often require physical therapy to
regain strength and full range of motion.
The anterior
cruciate ligament accounts for 10-15% of ski injuries. We will
discuss three common mechanisms of ACL injury. 'Phantom foot' occurs when
the skier is off balance and falling backward with their weight on the
inside edge of the downhill ski and their uphill ski is in the air. This
twists and bends the knee, forcing the tibia forward on the femur and
rupturing the ACL. Situations placing the skier in this position include
attempting to recover when off-balance or during a fall and attempting
to sit down while out of control. A direct hit to the lower leg from behind,
often from an out of control skier, can result in an ACL injury. Injury
can also occur when landing from a jump off balance with the knee extended.
The tail of the ski hits the ground first, forcing the back of the boot
against the calf, pushing the tibia forward, and tearing the ACL.
An ACL tear can be
partial or complete. Both can cause pain and immediate swelling within
the joint. A 'pop' may be felt or heard as the knee gives out. Diagnosis
is made by clinical examination and may be confirmed with MRI. The MCL
and lateral meniscus are commonly injured along with the ACL. At this
point, evaluation by an orthopedic surgeon to discuss treatment options
is helpful. Initial treatment and rehabilitation is directed at reducing
swelling, regaining strength and full range of motion and preventing deconditioning.
As rehab progresses, sporting activities are gradually resumed. If the
knee continues to 'buckle' or 'give out', long-term bracing may be necessary.
If this is an unacceptable option, surgical reconstruction is possible.
Five to ten percent
of ski injuries involve the meniscus. The meniscus is made
of cartilage and sits between the femur and tibia. A sudden severe twist
can tear the meniscus, usually occurring when the knee is bent with the
full body weight on it. There is immediate pain when standing or walking,
but maximum swelling may take a day or two to appear. A large tear may
get stuck between the bones preventing straightening of the knee. This
is known as a 'locked knee'. The meniscus has poor blood supply, so most
tears do not heal. Arthroscopic surgery can provide relief if pain persists.
Arm injuries also
occur, 'Skier's thumb' being the most common. This is a
ligament injury at the base of the thumb occurring during a fall on an
outstretched hand while still holding the pole. A complete tear requires
several weeks of casting or bracing and may even need surgery. If not
properly treated, thumb grasp and strength is permanently decreased. This
injury can be prevented by not wrapping the pole straps around your thumb.
Prevention is the
best treatment, but injuries will still occur. Ski injuries can be permanently
disabling if not appropriately treated, and early medical evaluation will
direct a rehabilitation program to speed recovery. I wish everyone a healthy
and happy ski season.
Dr. Jeff Gundel
is an Orthopedic Surgeon specializing in sports related injuries and arthroscopy
in Saratoga Springs. He participates in hiking, mountain biking and cross-country
skiing.
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2000 Adirondack Sports & Fitness. All Rights Reserved.
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