Skiing Braces Category
Ahh...the feel of powder as it swooshes beneath your skis or snowboard. The speed, the exhilaration, the beauty. All these are wonderful things, but, if you're like us, you also always have a nagging thought in the back of your head: the risk of injury.
No doubt, skiing and snowboarding can have their risks, but properly addressed, each can be an extraordinary experience. Injuries from skiing and snowboarding can include:
Fractures (clavicle, ankle, tibia, femur, spine)
Dislocations (especially shoulder)
This has raised the most interest in the past few years with the deaths of Sonny Bono and Michael Kennedy, and has stirred a debate on mandatory use of helmets. Only 10-15% of all ski injuries are related to head injuries with over 43% occurring in younger children. Most of the fatal head injuries occur in younger, more aggressive skiers who are skiing out of control, on un-groomed trails, at high speeds (usually greater than 30 mph) and striking a solid, fixed object. Helmets are recommended by the AMA and AOA as methods to help reduce the incidence of head injury, but a helmet provides little protection at high speeds. So, your best protection against a head injury is to ski skillfully, on groomed trails, at lower speeds. It is highly recommended that you use a helmet. This is extremely important for the younger skiers who are at the highest risk of head injury and by the virtue of physics, can benefit the most from head protection. When choosing a helmet, look for the ASTM Logo which means the helmet has met a set of minimum manufacturing standards.
Knee injuries are quite frequent in skiers because of the simple mechanics of the sport: the body is propelled at high speed. Your feet and ankles are relatively locked into your skis. In a situation where your ski is torqued, but does not release, the joint that sustains the most force is the knee.
By far, knee injury is the most common disabling injury for skiers and boarders. It accounts for 25% of all ski injuries and occurs in approximately 1.33 per 1,000 skier days. The two most common knee injuries are to the medial collateral ligament (MCL) and the anterior cruciate ligament (ACL).
Medial collateral ligament (MCL) injuries occur most frequently in beginning and intermediate skiers. This is due to the fact that beginning skiers use a snowplow type of stance to stop and turn which places a tremendous amount of stress on the inside portion of the knee. This stress or force is multiplied by the mass of the skier and the acceleration of gravity and results in a physics disaster (F= M * A). Fortunately, a majority of these injuries can be treated without surgery. A brace, physical therapy and the tincture of time usually takes care of these injuries. In rare cases, surgical reconstruction is undertaken to treat these injuries.
Anterior Cruciate Ligament (ACL) injuries tend to occur in more advanced skiers and can be attributed to specific falling patterns. Despite wonderful engineering advances in skiing and snowboarding equipment which have reduced the rate of lower extremity fractures, these advances have failed to reduce the incidence of ACL injuries. In fact, there is an alarming increase in ACL injuries (almost a 240% increase) with some interesting theories for this increase. Specific suggestions to prevent knee injuries include:
Keep your knees flexed, and don't try to straighten them during a fall since a straight leg provides a longer lever force against the knee.
When you're down, stay down; don't try to stop the fall. You can not predict which way your leg is going to twist.
Fall forward. Don't land on your hands backward. Keep your arms up and forward. Falling backwards places abnormal forces across the ACL.
Don't jump unless you know where and how to land. Land on both skis and keep your knees flexed
(reference: Ettlinger CF, Johnson RJ and Shealy JE, American Journal of Sports Medicine 1995; 23(5): 531-537)