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Upper-extremity tendinitis and overuse syndromes in the athlete.

Overuse injuries are the result of repetitive microtrauma to the musculotendinous unit. Treatment protocols are based on the stage of the inflammatory process that is active at the time of diagnosis. Control of the inflammatory response with rest, elevation, and ice is the treatment objective during the inflammatory stage. Prevention of further injury is the primary treatment goal throughout the proliferative phase. Once the inflammatory process has reached the maturation stage, rehabilitation can begin with flexibility exercises, isometric contractions, and a slow return to strength training. Surgical decompression is frequently necessary if chronic inflammation causes fibrosis of the fibro-osseous tendon sheaths. Anomalous muscle bellies and tendinous interconnections can be contributing factors to overuse syndromes. Properly structured training programs and rehabilitation regimens can prevent tendinitis and overuse syndromes.

Arm↗

Elbow injuries in the throwing athlete. Difficult diagnoses and surgical complications.

Elbow injuries in throwing athletes can be challenging from the diagnostic and management perspectives. The stress of repetitive throwing does predispose athletes to certain conditions with which treating clinicians need to be familiar. An understanding of the anatomy of the elbow and the biomechanics of throwing is essential to making the correct diagnosis and instituting proper care. Failure of nonoperative measures often requires surgical intervention. A thorough understanding of the anatomy and the spectrum of conditions that can occur is needed before decisions regarding surgical management can be made. The operative approach to elbow pathology, whether performed open or arthroscopically, should be completed by orthopedists who have experience with the clinical conditions and the appropriate technical facility to provide comprehensive care. This article has reviewed the anatomy, biomechanics, and spectrum of conditions that affect throwing athletes' elbows as well as the potential complications that can be associated with surgical management.

Arthroscopy↗

Foot and ankle injuries in dance.

Acute traumatic injuries are common in ballet dancers. A careful history, thorough examination, and appropriate imaging should allow for the diagnosis of most problems. The clinician must have a high index of suspicion for occult bony injuries, especially if the patient fails to recover as expected. Aggressive treatment of the sprained ankle is essential to maintain foot and ankle mobility and prevent prolonged disability and subsequent overuse injuries. Kinetic chain dysfunctions are common in ballet dancers with overuse injuries and commonly follow ankle sprains. They may represent a secondary phenomenon that developed in response to the compensatory movement changes caused by the initial injury. It is important to remember, however, that these dysfunctions may have been long standing and a causative factor in the injury. Regardless of the time of onset of the dysfunction, residual kinetic chain dysfunction associated with incomplete rehabilitation of an injury may predispose the dancer to further injuries. Untreated dysfunctions at one site in the kinetic chain may predispose to compensatory dysfunction at other sites in the chain. Accordingly, it is essential to thoroughly examine the entire chain for functional movements when dealing with an injury, because identification and treatment of the kinetic chain dysfunction is important in the rehabilitation of the dancing athlete. Kinetic chain dysfunctions are common in injured ballet dancers and may be a cause of repeated injury. Why then are these dysfunctions left untreated? Medical personnel caring for dancers are sometimes guilty of tunnel vision, and focus solely on the injured site without considering what is happening at other sites in the kinetic chain. This oversight is compounded when the physicians or therapists are satisfied with discovering simply what injury has occurred rather than asking why the injury has occurred. The significance of kinetic chain dysfunctions is only just beginning to be recognized, and many examiners are not aware of the relationship between abnormal motion and injury. Generally, people see only what they look for, and they look only for what they know. Kinetic chain dysfunctions can easily be detected with simple tests of functional movement if the examiners include these tests in their assessment of the injured dancer. As long as clinicians are either unaware of or unwilling to perform these tests, these dysfunctions will remain untreated and may put the dancer at risk of failed rehabilitation or predispose them to further injury.

Ankle Injuries↗

Back injuries in the young athlete.

The diagnosis of back pain in the young athlete should be specific and not attributed to nonspecific, mechanical causes. Risk factor identification and intervention are required. Treatment is then initiated in a specific pattern, addressing flexibility and muscular imbalances. Bracing is often used to allow healing of growth tissue. The lumbosacral orthosis may be molded in a lordotic posture to unload the disc or antilordotic posture to relieve the posterior column; however, customizing the lordosis to the individual biomechanics may be required. Spinal stabilization is initiated with therapy for strengthening isolated weaknesses and progressing to coactivation and proprioceptive techniques, such as the balance ball. Returning to competition is preceded with sport-specific training.

Acute Disease↗

The young dancer.

The injuries that are prevalent in and unique to dancers have their origins inextricably linked to faulty technique or poor biomechanics, combined with other risk factors. It is this combination of factors that must be addressed when considering diagnosis, treatment, and rehabilitation. For the dancer to return to full activity with minimal risk of recurrent injury, neuromuscular re-education is mandatory. This process best entails using a team approach, accessing the resources of healthcare professionals and those who train the dancer on a daily basis. In some cases, parents also may need to be involved. Communication, interaction, and mutual understanding among these groups will assist the dancer in regaining and maintaining health.

Adolescent↗

The young gymnast.

Gymnastics training develops strength, flexibility, concentration, balance, grace, and speed in young athletes. In terms of hours per week and intensity of practice, the dedication to training at a young age, is unparalleled in most other youth sports. With this dedication comes the risk of injury to the immature musculoskeletal system, and it is our duty to ensure that these risks are minimized. Through adequate safety equipment, supervision, and spotting of difficult techniques, a number of acute injuries may be prevented. Maintenance of balanced flexibility and strength, modification of training to limit pain, and taping or splinting of wrists and ankles may reduce the risk of overuse injuries. Physician who deal with young gymnasts must have an understanding of the inherent risks of the sport to provide prompt diagnoses and appropriate management of injuries. The gymnasium can be a healthy environment as long as the health and safety of the child takes precedence over the success of the gymnast.

Adolescent↗

Musculoskeletal injuries in the young tennis player.

Tennis is becoming increasingly popular, especially with young athletes. Despite recent advances in epidemiologic research of tennis injuries, there still is a need for more injury research in all of the racquet sports. The data that does exist show that the young athlete is susceptible to injury in these different sports. Injury patterns in the skeletally immature racquet sports athlete are becoming apparent. Although most of the sports result in similar injury patterns, such as a predominance of lower extremity injury, there are differences. It appears that the physical demands of the sport are becoming more clearly documented, and the adaptive response to these demands is becoming understood. The adaptive response reveals a common origin for many of the injuries in the different sports. This is related most often to repetitive microtrauma with resultant loss in flexibility and strength. The sports medicine practitioner must understand these differences, know the demands, do serial musculoskeletal evaluations for maladaptations, and adhere to a periodized prehabilitation program of preventative exercises to maximize performance and minimize injury risk.

Adolescent↗

Osteochondritis dissecans of the elbow.

Osteochondritis dissecans of the elbow remains a difficult problem to manage in the young athlete. Though the etiology is unclear, a definite association between overuse with repetitive microtraumatic insult and OCD has been established. Early detection and appropriate treatment can provide the best chance for preventing an unfavorable outcome. In many cases, conservative treatment regimens will provide complete resolution of symptoms, return of function, and full recovery, including return to sports participation. Surgical indications should be recognized, however, and surgical management carried out when warranted. Most authors treat unstable lesions primarily by excision of the fragment, accompanied by drilling or burring of the base of the lesion. Symptoms usually improve significantly, but approximately half of all patients will continue to experience chronic pain or limitation of elbow motion, highlighting the significance and severity of OCD of the elbow.

Adolescent↗

Upper extremity overuse injuries in swimming. A discussion of swimmer's shoulder.

Treatment of shoulder pain includes the following: 1. Avoid all painful activities. 2. A 2-week course of nonsteroidal anti-inflammatory medication and ice. 3. Decreased anterior capsule stretching and increased posterior capsule stretching. 4. Increased rotator cuff exercise with emphasis on external rotators. 5. Scapular-positioning muscle exercises and increasing body roll. Shoulder pain can be prevented by the following: 1. Avoid all painful activities, and notify coach of shoulder pain immediately. 2. Do not use nonsteroidal anti-inflammatory medications or ice on a chronic basis. 3. Spend equal time stretching the posterior and anterior capsules. 4. Perform general rotator cuff exercises. 5. Perform scapular-positioning muscle exercises, with emphasis on body roll. [figure: see text] Shoulder pain in swimmers is common and can be debilitating. Most of the pain is caused by instability, which stems from swimming-specific demands that increase performance but decrease shoulder stability. These sport-specific demands are (1) increased shoulder range of motion, (2) increased internal rotation and adduction strength, and (3) prolonged, fatiguing, shoulder-intensive training. Instability leads to [figure: see text] inflammation and pain and can become a self-perpetuating process. Treatment consists of patient education, cessation of all activities that cause pain, activity modifications to increase shoulder stability, and pharmacologic treatment of the inflammation. In patients who do not improve using this regimen, surgery can be of benefit, either to reduce capsular laxity or to remove chronic inflammation and scar tissue. The patient must be aware of the risk of decreased performance.

Cumulative Trauma Disorders↗

Overuse injuries of the upper extremity in golf.

Golfers are athletes, for golf is a sport. To play it well, one must have athletic ability, strength, agility, coordination, and endurance. The golf swing is physically demanding and has contributed to overuse injuries in the upper extremity. The wrist, elbow, and shoulder are the most frequently injured joints.

Arm Injuries↗

Pronator syndrome.

Although pronator syndrome is often misdiagnosed and does not occur as frequently as carpal tunnel syndrome, its clinical features are well described, and the diagnosis should be made if the clinical features are understood and reasonable suspicion exists. The differentiating features between carpal tunnel syndrome and pronator syndrome should be understood, and evaluation for one site of compressive neuropathy of the median nerve always should include the other potential sites. When the correct diagnosis is made, pronator syndrome can be successfully treated nonoperatively or surgically, if necessary.

Cumulative Trauma Disorders↗

Medial epicondylitis and cubital tunnel syndrome in the throwing athlete.

Medial epicondylitis and ulnar nerve problems are common in the throwing athlete, resulting from the tremendous valgus stress that occurs during the acceleration phase of pitching. They are too often ignored as a cause of medial pain in the throwing athlete in favor of the diagnosis of ulnar collateral ligament injury. The latter seems to be in vogue, and there is a virtual epidemic of reconstructive surgery to address this diagnosis. The question is whether more medial pain is caused by the former two diagnoses than the latter. We need to have a better understanding of the natural history and differential diagnosis of medial side pain, which, I hope, will come with time. Nonetheless, medial stress injuries occur in the throwing athlete, and can cause inflammation of the adjacent anterior capsule flexor pronator mass, the ulnar collateral ligament, and the ulnar nerve. This review highlights these problems, their anatomy, diagnosis, and management.

Athletic Injuries↗

Lateral epicondylitis.

Satisfactory treatment of lateral epicondylitis results from correct diagnosis followed by a well-controlled operative or nonoperative treatment program. Many options for nonoperative and operative treatment exist for lateral epicondylitis. More study is needed on outcomes of both nonoperative treatment and operative treatment so that each patient can attain maximal improvement. Balanced assessments of specific patient populations, along with definitions of the optimal treatment for each group, are required. This will allow physicians to integrate the available information and improve patient care.

Adrenal Cortex Hormones↗

Osteochondritis dissecans of the humeral capitellum. Diagnosis and treatment.

Elbow pain seen in the at-risk athlete, such as a baseball player (in particular, a pitcher) or gymnast, should raise suspicion for OCD. OCD of the humeral capitellum remains a difficult problem to treat. Once radiographic changes are obvious, long-term studies suggest that half of affected individuals will be symptomatic. Currently, the key to successful treatment is early detection. Gymnasts, in general, fare worse in returning to sport. The reason is not entirely clear but is likely related to the amount of force directed across the elbow and the nature of the sport. Pitchers sometimes can be returned, but to another position. Radiographs remain the screening test of choice but can give the surgeon a false sense of security, because changes early in the disease process may not be obvious radiographically. Views at 45 degrees flexion and contralateral elbow views are helpful. The advent of MR imaging now allows the practicing orthopaedic surgeon to assess very early lesions effectively that might otherwise be underappreciated on radiographs. With more advanced lesions, radiographic findings are more obvious and demonstrate the more classic capitellar fragment with a surrounding zone of lucency. MR imaging is this setting is helpful in assessing the overlying articular cartilage and, hence, the stability of the fragment. In the absence of obvious loose bodies or mechanical symptoms, rest is the first step in treatment. If symptoms persist, then operative intervention is indicated. About half of these patients heal with nonoperative treatment. Pretreatment assessment of fragment viability has not traditionally been incorporated into the treatment algorithm. Recent anecdotal evidence suggests that stability and viability of a fragment can be assessed using intravenous contrast. Knowledge of the fragment viability could allow those lesions likely to heal without surgical intervention to be distinguished from those requiring surgical intervention. The procedure should be chosen based on the size of the lesion and the integrity of the subchondral bone. Subchondral drilling and microfracture can only resurface defects and cannot reconstitute subchondral bone. Autologous chondrocyte implantation has limited ability to address subchondral bone loss, whereas autograft and allograft osteochondral transplantation can restore subchondral bone. Most authors would agree that there is no role currently for reduction and fixation of long-standing, free loose bodies. No consensus exists regarding acute dislodging of an in situ loose fragment. Long-term results after radiographic changes are present suggest a degenerative course in about half the patients. Whether the newer techniques of cartilage resurfacing will significantly impact the natural history of this process remains to be seen.

Athletic Injuries↗

Wrist and hand overuse syndromes.

Overuse syndromes in the wrist or hand can occur from repetitive use of the wrist and hand or from recurrent direct trauma to the hand area. Tendinitis syndromes due to overstretching or shear stress are seen commonly on both the extensor and flexor sides of the wrist. Overuse syndromes also can take the form of neurovascular syndromes, resulting in compression syndromes of the median, ulnar, and superficial branch of the radial nerve in the wrist area and trauma to the ulnar and digital vessels supplying the hand. Treatment in most cases involves rest with splinting, icing, and NSAIDs in acute cases, although surgical decompression is indicated in chronic or recurrent cases.

Arteries↗

Stress fractures of the upper extremity.

Stress fractures are common injuries in the athletic population. Although much of the published literature has focused on lower extremity stress injuries, these injuries also occur in the upper extremities. Stress injuries of bone result from repetitive loads smaller than would be required to cause an acute fracture. As bone is repetitively stressed, it behaves like any solid substance. If deformity occurs within its elastic range, it returns to its original configuration. If stressed into its plastic range, permanent deformity occurs, and microfractures propagate, causing structural failure and complete fracture of the involved bone. High clinical suspicion is required for diagnosis because of historical and physical features can be vague. Plain radiographs are often inconclusive, but bone scans and MR imaging usually help elucidate the diagnosis. Most upper extremity stress injuries will heal with nonoperative management. In rare situations these injuries can progress to nonunion, which requires surgical correction.

Arm Injuries↗

Rehabilitation concepts and supportive devices for overuse injuries of the upper extremities.

Rehabilitation of overuse injuries requires the health care professional to understand normal and common pathologic mechanics of the patient's sport or physical activity. Evaluation of the total mechanics of the body, not just the local area presenting with discomfort, is important. [figure: see text] The cause of the presenting injury can be a dysfunction at a distant site. Rest and supportive devices are helpful in allowing the athlete to return to a normal activity level. A progressive reconditioning program needs to address strength and flexibility issues and endurance and eccentric exercises.

Arm Injuries↗