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[Shoulder injuries: macrotraumas and overuse problems].

Injuries to the shoulder are becoming more frequent in pediatric and adolescent athletes with widespread participation in sports activities. These injuries can result from macrotraumas as well as microtraumas from repetitive stress. Injury patterns present differences in this age group due to peculiar physiologic and biomechanical features. Most shoulder problems in adolescent athletes can be treated conservatively with a good response, while some conditions require surgical reconstruction.

Adolescent↗

Diagnosis and treatment of shoulder injuries in the athlete.

The goal of the treatment team dealing with patients who have sports-related shoulder injuries is to return them to their previous activity. There is no substitute for knowledge of anatomy, diagnosis modalities, or current treatments. Realistically, some of the athletes are not able to return to the level of competition they performed originally. For those patients, recommendations and suggestions for alternatives based on a sound knowledge of arthroscopic principles need to be considered. One of the greatest roles for the nurse treating these patients may be the temporary loan of her shoulder for them to lean on.

Athletic Injuries↗

[Shoulder injuries in Alpine skiing].

Considering the injuries of the shoulder girdle, cases with ski-injuries admitted to the Garmisch-Partenkirchen Hospital in the past ten years were analyzed. Frequency, age structure and distribution were explored and an attempt was made to connect the mechanisms of trauma with the kind of injury, regarding particularly the ski-specific factors. In the course of the past ten years an increasing relative frequency of dislocations of the shoulder was observed. In elder patients the fractures of the proximal humerus are more frequent, whereas fractures of the clavicle are more frequent in children.

Athletic Injuries↗

Diagnosis and treatment of shoulder injuries in the throwing athlete: the role of thermal-assisted capsular shrinkage.

The treatment of the throwing athlete is complex. Many factors enter into the decision regarding the nature and timing of appropriate intervention. Because of the nature of the mechanical aspects of the throwing motion, increased external rotation (overrotation) is often necessary to throw at a highly competitive level. This increased motion is associated with acquired increased glenohumeral laxity which, by itself, is generally not problematic. However, in the athlete with an overuse-type shoulder injury such as a SLAP lesion or a partial-thickness undersurface tear of the rotator cuff (internal impingement), it is perhaps the increase in glenohumeral laxity that allows such pathology to occur. A careful history and physical examination are important to determine the nature of the injury and the amount of laxity that may be present. Currently, we believe that addressing the capsular laxity arthroscopically at the same time that the intra-articular pathology is addressed is the best form of treatment for these athletes, and affords them the best chance of returning to competition at the same or higher level. Obviously, further follow-up is necessary to determine the long-term results of such treatment.

Athletic Injuries↗

Shoulder injuries in tennis players.

The mechanism of the overhead action in throwing sports has been studied extensively. This motion is unnatural and highly dynamic, often exceeding the physiological limits of the joint. Owing to overload of various anatomical structures, the shoulder is susceptible to injury. Optimal shoulder function requires good kinetic chain function, optimal stability, and coordination of the scapula in the overhead action. A well balanced action of the rotator cuff muscles and capsular structures is necessary to obtain a stable centre of rotation during the overhead action. This review concerns shoulder injuries, related to the overhead motion in tennis players, which can be explained by the same mechanism as thrower's shoulder.

Biomechanical Phenomena↗

Preliminary comparison of treatments of shoulder injuries using the FitLinxx computer feedback system and standard physical therapy.

Men and women suffering from various shoulder injuries (n = 28) were recruited to test the efficacy of a computer feedback system during physical therapy. Measures of physiological progress were statistically equivalent between the Standard Treatment and FitLinxx supported groups. Although compliance was uniformly high between groups, the FitLinxx-supported patients were more likely to continue exercise after termination of treatment. Considerably less total professional time was required for FitLinxx-supported therapy. Suggestions were made to replicate and extend the present preliminary findings.

Adult↗

Shoulder injuries in the childhood athlete.

Shoulder dysfunction in the young athlete usually is manifested differently than the adult counterpart. The physiology and biomechanics of a growing child and adolescents result in different injury patterns that require different and thoughtful approaches to diagnosis and treatment. Most of these conditions are served well by nonsurgical treatment modalities. Judicious use of surgical interventions, however, can significantly improve patient outcome and return them to their sport of interest. Postoperative rehabilitation, and proper training techniques are essential to ensure continued participation of the athlete.

Adolescent↗

Surgical treatment of shoulder injuries in tennis players.

There are a number of disorders that affect the shoulder of the tennis player. The majority of these disorders are approached conservatively at first, and surgery is generally reserved for those with advanced stages of disease, or those who fail conservative treatment. Most surgical procedures for the shoulder are done open; however, arthroscopic techniques are advancing rapidly, and are expected to eventually supersede open surgical procedures. In either case, the postoperative rehabilitation program is an essential part of the surgical treatment of these disorders, and should not be neglected.

Acromioclavicular Joint↗

Shoulder injury and response due to lateral glenohumeral joint impact: an analysis of combined data.

To date, several lateral impact studies (Bolte et al., 2000, 2003, Marth, 2002 and Compigne et al., 2004) have been performed on the shoulder to determine the response characteristics and injury threshold of the shoulder complex. Our understanding of the biomechanical response and injury tolerance of the shoulder would be improved if the results of these tests were combined. From a larger data base shoulder injury tolerance criteria can be developed as well as corridors for side impact dummies. Data from the study by Marth (2002, 12 tests) was combined with data from the previous studies. Twenty-two low speed tests (4.5 +/- 0.7 m/s) and 9 high speed tests (6.7 +/- 0.7 m/s) were selected from the combined data for developing corridors. Shoulder force, deflection and T1y acceleration corridors were developed using a minimization of cumulative variance technique. The reduction in impact speed and the addition of padding reduced the magnitude and increased the time to peak of shoulder forces and T1y accelerations. Logistic analyses were performed on the combined data sets to determine the best predictors of MAIS-2 shoulder injuries. Maximum normalized shoulder deflection and Cmax had p values of 0.0000 and were the best predictors of shoulder injuries. For the 50(th)-percentile male, a shoulder deflection of 40 mm and a Cmax of 20% corresponded to a 50 % risk of MAIS-2 shoulder injury. In linear regression analysis, maximum normalized medial scapula X acceleration and maximum normalized sternum X acceleration were best related with the shoulder deflection and confirmed the forward movement of the sternum and rearward movement of the scapula.

Journal Article↗

MR imaging of shoulder injuries in professional baseball players.

Magnetic resonance (MR) imaging was used to evaluate the shoulders of 10 symptomatic professional baseball players and one asymptomatic player, with surgical correlation in six cases and arthrographic correlation in two cases. Seven small rotator cuff tears measuring 0.5-1 cm were identified on MR images, with arthrographic and surgical confirmation of these findings in two patients and surgical confirmation only in three patients. Cortical irregularity and/or subchondral cyst formation at the posterior aspect of the greater tuberosity near the insertion site of the infraspinatus tendon was found in five of the seven players with rotator cuff tears. Similar findings were noted in the asymptomatic volunteer and in one of the three players without cuff tear, who also had irregular thickening of the posterior capsule. These findings are believed to represent chronic avulsive changes resulting from the deceleration stresses of the follow-through motion.

Adult↗