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PubMedDate not supplied

Imaging of the elbow in the overhead throwing athlete.

Elbow injuries in athletes who perform overhead throwing motions often present diagnostic challenges because of the undue stresses and often chronic, repetitive patterns of injury. Accurate and efficient assessment of the injured elbow is essential to maximize functional recovery and expedite return to play. Radiographic evaluation should be tailored to the specific injury suspected and requires a thorough understanding of normal anatomic relationships as well as familiarity with common injuries affecting these athletes.

Athletic Injuries↗
PubMedDate not supplied

The incidence of injuries in elite junior figure skaters.

BACKGROUND: There has been rapid growth in the technical and physiologic demands made on skaters who perform more and more difficult jumps, spins, lifts, throws, and free skating movements. PURPOSE: To investigate the frequency of injuries and overuse syndromes in elite junior skaters. STUDY DESIGN: Questionnaire. METHODS: During four consecutive Junior World Figure Skating Championships and the Croatia Cup, we interviewed 236 female and 233 male skaters by questionnaire to determine the frequency of injuries and overuse syndromes. RESULTS: Fifty-nine of the female skaters (25%) and 65 of the male skaters (27.9%) reported sustaining acute injuries; 101 female (42.8%) and 106 male (45.5%) skaters reported overuse syndromes. Low back pain was reported by 19 female and 23 male skaters. The most frequent acute injury was ankle sprain. In singles female skaters, the most frequent overuse injury was stress fracture (19.8%), followed by jumper's knee (14.9%). In singles male skaters, jumper's knee (16.1%) was the most frequent injury, followed by Osgood-Schlatter disease (14.2%). More than 50% of injuries in young singles figure skaters involved overuse syndromes. Pairs skaters and ice dance skaters had a higher risk of acute injury than overuse syndrome because of falls from lifts and throw jumps. CONCLUSIONS: Programs to improve postural alignment, flexibility, and strength, especially during the asynchronous period of bone and soft tissue development, should be instituted to prevent and reduce overuse syndromes.

Adolescent↗
PubMedDate not supplied

Elbow injuries in throwing athletes: a current concepts review.

Repetitive overhead throwing imparts high valgus and extension loads to the athlete's elbow, often leading to either acute or chronic injury or progressive structural change. Tensile force is applied to the medial stabilizing structures with compression on the lateral compartment and shear stress posteriorly. Common injuries encountered in the throwing elbow include ulnar collateral ligament tears, ulnar neuritis, flexor-pronator muscle strain or tendinitis, medial epicondyle apophysitis or avulsion, valgus extension overload syndrome with olecranon osteophytes, olecranon stress fractures, osteochondritis dissecans of the capitellum, and loose bodies. Knowledge of the anatomy and function of the elbow complex, along with an understanding of throwing biomechanics, is imperative to properly diagnose and treat the throwing athlete. Recent advantages in arthroscopic surgical techniques and ligament reconstruction in the elbow have improved the prognosis for return to competition for the highly motivated athlete. However, continued overhead throwing often results in subsequent injury and symptom recurrence in the competitive athlete.

Athletic Injuries↗
PubMedDate not supplied

Characteristic plantar pressure distribution patterns during soccer-specific movements.

PURPOSE: To characterize in-shoe pressure measurements during different soccer-specific maneuvers on two playing surfaces to identify the main loading areas of the foot. METHODS: Twenty-one experienced male soccer players participated in the study (25.5 +/- 1.8 years, 78.7 +/- 5.4 kg, and 182.9 +/- 5.7 cm). The Pedar Mobile system was used to collect plantar pressure information inside the soccer shoe. Four soccer-specific movements were performed (normal run, cutting maneuver, sprint, and goal shot) on both a grass and a red cinder surface. RESULTS: Results showed characteristic pressure distribution patterns with specific loading areas of the foot that correspond to the evaluated movements. In addition, loading patterns with higher pressure values than those observed during normal run were found. In cutting, the medial part of the foot; in sprinting, the first and second ray; and in kicking, the lateral part of the foot are predominantly loaded. No global effect of the two surfaces on pressure parameters was found. CONCLUSION: The results of the present investigation suggest that the high load in soccer in combination with a high repetition may have an important influence in the development of overuse injuries.

Adult↗
PubMedDate not supplied

Athletic injuries of the wrist and hand: part II: overuse injuries of the wrist and traumatic injuries to the hand.

Hand and wrist injuries in sports are some of the most common injuries reported. This review discusses common overuse injuries of the wrist including tendon injuries such as de Quervain's syndrome, subluxation of the extensor carpi ulnaris, and the common dorsal carpal impingement syndrome. The main focus of this section is the discussion of traumatic injuries to the hand in the athlete. Included is a discussion and review of fractures of the phalanges and metacarpals, common proximal interphalangeal joint injuries, and thumb carpal metacarpal and metacarpophalangeal joint injuries. Emphasis is placed on more common injuries seen regarding diagnosis, indications for non-operative versus operative treatment, and time to return to athletic competition.

Athletic Injuries↗
PubMed2004

Shoulder injuries to quarterbacks in the national football league.

BACKGROUND: Quarterbacks are at risk for shoulder injury secondary to both the throwing motion as well as from contact injury. OBJECTIVE: To delineate the incidence and etiology of shoulder injuries to quarterbacks in the National Football League (NFL). METHODS: Using the NFL Injury Surveillance System (NFLISS), all reported injuries to quarterbacks between 1980 and 2001 were identified. RESULTS: A total of 1534 quarterback injuries were identified with a mean of 18.8 and a median of 6.0 days of playing time lost. The majority of these injuries occurred during a game (83.8%). Passing plays were responsible for 77.4% of all quarterback-related injuries. Shoulder injuries were the second most common injury reported (233 or 15.2%), following closely behind head injuries (15.4%). Direct trauma was responsible for 82.3% of the injuries, with acromioclavicular joint sprains being the most common injury overall (40%). Overuse injuries were responsible for 14% of the injuries, the most common being rotator cuff tendinitis (6.1%) followed by biceps tendinitis (3.5%). CONCLUSION: In this review, the vast majority of shoulder injuries in quarterbacks occurred as a result of direct trauma (82.3%), and less than 15% were overuse injuries resulting from the actual throwing motion.

Adult↗
PubMed2004

Ulnar collateral ligament reconstruction in high school baseball players: clinical results and injury risk factors.

BACKGROUND: The incidence of ulnar collateral ligament injury has increased in baseball, especially at the high school level. HYPOTHESIS: Ulnar collateral ligament injury in high school baseball players is associated with overuse, high-velocity throwing, early throwing of breaking pitches, and improper warm-ups. STUDY DESIGN: Retrospective cohort study. METHODS: Follow-up physical examination and questionnaire data were collected at an average of 35 months after ulnar collateral ligament reconstruction from 27 former high school baseball players. Six potential risk factors were evaluated: year-round throwing, seasonal overuse, event overuse, throwing velocity more than 80 mph, throwing breaking pitches before age 14, and inadequate warm-ups. RESULTS: Overall, 74% returned to baseball at the same or higher level. Patients averaged 3 potential risk factors, and 85% demonstrated at least one overuse category. Of the pitchers, the average self-reported fastball velocity was 83 mph, and 67% threw breaking pitches before age 14. CONCLUSIONS: The success rate of ulnar collateral ligament reconstruction in high school baseball players is nearly equal to that in more mature groups of throwers. Overuse of the throwing arm and throwing breaking pitches at an early age may be related to their injuries. Special attention should be paid to elite-level teenage pitchers who throw with high velocity.

Adolescent↗
PubMed2005

Sports activity after arthroscopic superior labral repair using suture anchors in overhead-throwing athletes.

PURPOSE: To evaluate the results of arthroscopic repair of type II superior labral anterior posterior lesions of the shoulder in overhead athletes. HYPOTHESIS: Such repair is useful for overhead athletes in terms of postoperative sports activity. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: The study group was composed of 40 patients with a mean age of 24 years (range, 15-38 years); mean follow-up was 41 months (range, 24-58 months). They were divided into an overuse (n=22) and a trauma group (n=18). The authors used 2 suture anchors loaded with a nonabsorbable suture at the 11-o'clock and 1-o'clock positions through the anterosuperior and lateral trans-rotator cuff portal. A modified Rowe score and postoperative athletic activities were evaluated. RESULTS: After arthroscopic repair, mean modified Rowe scores improved from 27.5 to 92.1 points (P<.0001). Rated on this scale, the results were excellent in 30 (75%), good in 6 (15%), and fair in 4 (10%) athletes; there were no poor results. Satisfactory outcomes were achieved in 36 (90%) of these patients; 30 (75%) experienced a return to the preinjury level. The complete return rate of baseball players in the overuse group was lower than that of other overhead athletes in the trauma group. CONCLUSION: Arthroscopic superior labral repair is a safe and reliable procedure in overhead athletes.

Adolescent↗
PubMed2005

Intrinsic risk factors for the development of achilles tendon overuse injury: a prospective study.

BACKGROUND: Although Achilles tendon overuse injuries occur commonly, our understanding of the pathologic changes and the factors that predispose athletes to them is limited. PURPOSE: To identify measurable intrinsic risk factors for Achilles tendon overuse injuries. STUDY DESIGN: Cohort study (prognosis); Level of evidence, 2. METHODS: Sixty-nine male officer cadets followed the same 6-week basic military training. Before this training, each subject was evaluated for anthropometrical characteristics, isokinetic ankle muscle strength, ankle joint range of motion, Achilles tendon stiffness, explosive strength, and leisure and sports activity. During military training, Achilles tendon overuse injuries were registered and diagnosed by the same medical doctor. To identify the intrinsic risk factors, a multivariate analysis with the use of stepwise logistic regression was performed. The sensitivity, specificity, and cutoff values of the risk factors were evaluated by receiver operating characteristic curve analysis. RESULTS: Ten of the 69 male recruits (14.5%) sustained an Achilles tendon overuse injury diagnosed on the basis of medical history and clinical examination. Analysis revealed that male recruits with lower plantar flexor strength and increased dorsiflexion excursion were at a greater risk of Achilles tendon overuse injury. The cutoff value of the plantar flexor strength at 85% sensitivity was 50.0 N.m, with a 4.5% specificity; the cutoff value of the dorsiflexion range of motion at 85% sensitivity was 9.0 degrees , with 24.2% specificity. CONCLUSIONS: The strength of the plantar flexors and amount of dorsiflexion excursion were identified as significant predictors of an Achilles tendon overuse injury. A plantar flexor strength lower than 50.0 N.m and dorsiflexion range of motion higher than 9.0 degrees were possible thresholds for developing an Achilles tendon overuse injury.

Achilles Tendon↗
PubMedDate not supplied

Transverse tibial stress fractures. A special problem.

Five transverse tibial stress fractures have been reviewed. Two of three cases in the anterior midtibia and one in the proximal posteromedial tibia had radionuclide scans. These cases demonstrated minimal scan activity at the stress fracture site. This minimal scan activity in patients with a clinical history of pain and a tender mass suggests poor bone reparation and nonunion. One anterior midtibial stress fracture developed a complete fracture. A proximal anterior tibial ridge stress fracture revealed radiological and clinical evidence of healing.

Adult↗
PubMedDate not supplied

Stress fractures of the medial malleolus.

Six athletes, all engaged in running activities at the time of injury, presented with tenderness over the medial malleolus and ankle effusion. Three patients had a fracture line which could be seen on radiographs. These patients were treated by open reduction and internal fixation using two 4.0 cancellous screws. The other three patients had normal radiographs but bone scans showed increased uptake over the medial malleolus. These patients were treated with cast and immobilization. We believe that each of these patients suffered a stress fracture of the medial malleolus. We suggest that the possibility of a stress fracture be considered in the differential diagnosis of patients who present with 1) chronic or subacute pain over the medial malleolus and ankle effusion, and 2) a history of running activity at the time of injury or running activities aggravating the pain. Bone scans appear to be more sensitive than radiographs in detecting a stress fracture of the medial malleolus. We propose that athletes with radiographic signs of a medial malleolar fracture who desire early return to full participation should be treated by open reduction and internal fixation. For these patients, early motion can be initiated. Other athletes whose fracture cannot be detected on radiographs but whose malleolus shows increased uptake in the area on bone scans can be treated nonsurgically with immobilization and then progressive increase in activity. All of our patients returned to full activity between 6 and 8 weeks after treatment was initiated.

Adolescent↗
PubMedDate not supplied

The natural history and treatment of delayed union stress fractures of the anterior cortex of the tibia.

This study presents eight patients with stress fracture of the anterolateral cortex of the midshaft of the tibia. All of the patients, ranging in age from 14 to 23 years, were competitive basketball players who experienced pain while running or jumping for an average of 4.4 months before the diagnosis was made. Eight patients were treated with rest and/or pulsing electromagnetic field therapy. Although one of the patients required bone grafting procedure, all eight of these patients showed complete healing and were able to return to full activity after an average of 8.7 months of treatment. They have remained asymptomatic for an average of 14.7 months. The overall time from initial symptoms to return to competition averaged 12.5 months in this group of athletes. The results presented in this paper suggest that rest and pulsing electromagnetic field therapy may result in healing in some patients with delayed union stress fractures of the anterolateral cortex of the midshaft of the tibia. Although this injury is associated with a prolonged healing period, seven of eight patients with adequate followup in our study were able to return to competition without complications following treatment. One patient was asymptomatic for 33 months before experiencing a reinjury. In conclusion, we feel that diagnosis of stress fracture should be primary consideration in basketball players presenting with a prolonged history of pain on the anterolateral aspect of the midthird of the tibia. Once the diagnosis is made we recommend initial treatment consist of rest and external electrical stimulation for a minimum time of 3 to 6 months prior to considering surgical intervention.

Adolescent↗
PubMedDate not supplied

Semimembranosus tendinitis: an overlooked cause of medial knee pain.

A significant number of patients presenting with nontraumatic chronic medial knee pain have been found, after careful examination, to have chronic semimembranosus tendinitis. Of 115 patients diagnosed and treated for semimembranosus tendinitis over a 5 year period, 10 patients were refractory to conservative treatment. The purpose of this paper is to discuss the symptomatology and diagnosis of semi-membranous tendinitis, and to relate the treatment that these 10 patients underwent, i.e., surgical exploration, drilling of the insertion site, and semitendinosus tendon transfer. Most cases of semitendinosus tendinitis respond to conservative therapy; however, if surgical treatment is considered, arthroscopy should probably be performed at the time of surgery. In this way, it is possible to determine the presence of significant intraarticular abnormalities that may have a causal relationship with the onset of semimembranosus tendinitis.

Adolescent↗
PubMedDate not supplied

Femoral neck stress fractures.

Fifty-four femoral neck stress fractures were studied prospectively to evaluate treatment methods. Fifty-four fractures in 49 patients were identified in a 4 year prospective study that included 1,049 stress fractures of all types. From our evaluation of treatment methods, a modification of existing classification systems was developed based on radiographic findings and treatment. Differences from earlier studies were noted in racial diversity, in nonprogression of tension-side fractures, and in return to function.

Adolescent↗
PubMedDate not supplied

Delayed unions and nonunions of stress fractures in athletes.

From 1971 to 1985, 369 athletes presented to us with stress fractures. Of these patients, 10% (37) were treated for development of delayed unions or nonunions. Twenty-seven of the patients were male and 10 were female. Their mean age was 23.1 years (range, 17 to 39). About half of the athletes were involved in endurance sports. The diagnostic criteria for a delayed union or nonunion were clinical and radiological evidence. There was a diagnostic delay of about 3.5 months in the series. Plain radiographs, tomography, and isotope scans were used in the diagnosis. Special radiographic views were also used. In 15 cases (10 hallux sesamoid bone fractures, 1 midtibial shaft fracture, 1 metatarsal V base fracture, 1 tarsal navicular fracture, 1 olecranon fracture, and 1 proximal tibial shaft fracture) nonoperative treatment was used. Operative treatment was used 22 times (5 sesamoid fractures, 5 midtibial fractures, 5 metatarsal V base fractures, 3 tarsal navicular fractures, 3 olecranon fractures, and 1 proximal tibial shaft fracture). Results were good or excellent in 32 cases (86.5%), moderate in 4 cases, and poor in 1 case.

Adolescent↗