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Morbidity profile of high-performance fencers.

There are only very few data available about the morbidity of elite fencers athletes. The aim of this study was to elucidate the nature and history of the morbidity in high-performance fencers. The injury profile over 15 years of 93 fencers at a highly competitive level was analysed by clinical assessment and examination. We found a positive correlation between the injured upper extremity with the dominant fencing side while the lower extremity showed no side preference with regard to vulnerability. Achillodynia occurred more frequently at the contralateral side. The joint most affected was the knee. The dominating symptom was patellofemoral pain which occurred in 39.8 %.

Adolescent↗

Sports injuries in floorball: a prospective one-year follow-up study.

Two hundred and ninety-five licensed floorball players from Finnish premier to fifth division were observed prospectively for one season to study the incidence, nature, causes and severity of floorball injuries. During the study period, 100 out of the 295 (34 %) players sustained 120 injuries. Thirty-seven percent (73/199) of the male players and 28 % (27/96) of the females suffered from an injury. The injury rate was 1.0 per 1000 practice hours for both sexes. The injury rates per 1000 game hours were 23.7 for men and 15.9 for women. One hundred injuries (83 %) were acute and the remaining 20 (17 %) were overuse injuries. Sprain was the most common type of injury in men while overuse injuries were the most frequent injury type in women. The lower extremity was involved in 62 %, spine or trunk in 19 % and upper extremity in 10 % of the injuries. The most commonly injured sites were the knee and ankle (22 % and 20 % of all injuries), followed by head and neck (8 %). In both sexes the majority of injuries were minor, level II, injuries. Ten of the knee injuries (38 %) were serious, level IV injuries, of which seven were ACL ruptures. In conclusion, the individual risk of injury in floorball is relatively low in game practice while rather high during the game itself. Before initiation of clinical trials on prevention of floorball injuries, an exact knowledge of the risk factors and mechanisms of floorball injuries are needed.

Adult↗

[Patellofemoral pain syndrome in young men compared to a normal population exposed to the same physical strain].

AIM: The causes of the patellofemoral pain syndrome, especially in young patients, continue to be largely unknown. The purpose of the study was to determine the extent to which weight and activities that impose a strain on the knee influence the occurrence of patellofemoral pain in young, physically active men. METHOD: 248 soldiers on mandatory military service were included in the study. 133 persons had pain in the knee prior to or during military service while 115 persons had no symptoms in the knee. Anthropometric data and patient history were recorded for all individuals. This was followed by clinical examination. RESULTS: Age distribution and body mass index were identical in both groups. However, significantly more subjects in the group with pain prior to military service had been active sportsmen while a significantly larger number of normal individuals had had jobs that strained the knees. The greatest difference, however, was seen in the number of previous injuries. These were much more common in the group that had pain and the injuries most commonly were contusions. CONCLUSION: It is well known that previous injuries and sports favor the emergence of patellar pain. However, persistent strain on the knee at work appears to be less commonly associated with this symptom. The individual's body-mass index was of no importance in this context.

Adolescent↗

Hyperthermia at 434 MHz in the treatment of overuse sport tendinopathies: a randomised controlled clinical trial.

The objective of this randomized study was to compare a thermotherapy system, hyperthermia at 434 MHz and conventional ultrasound in the treatment of overuse sports tendinopathies. The study group consisted of 44 athletes, 33 males and 11 females (age 26 +/- 4.56 years) affected by tendinopathies at lower extremities (patellar or achilles tendons). After elucidation of the kind of trial, 22 patients were randomly assigned to hyperthermia and 22 to ultrasound. The patients received after a pain measurement and ultrasound scanning 12 treatments, 3 times a week for 4 weeks. The same standardized examination was done at the end of treatment and 1 month after the end of treatment. The assessor physician was unaware of the treatment allocation. The patients were asked to rate the ultimate outcome on the base of pain resolution and return to sports activity. Both groups had a significant decrease of symptoms (P<0.001). Hyperthermia, however, demonstrated better effects on the reduction of VAS score and on the subjective overall satisfaction (77 %) of excellent and good results in comparison to the 33 % of ultrasound. In patients with chronic overuse tendinopathies hyperthermia at 434 MHz showed encouraging results, with short-term clinical improvement, safety and no side effects.

Achilles Tendon↗

[Isolated rupture of the subscapularis tendon in the overhead athlete - the result of chronical overuse?].

The case of a 27-year-old overhead athlete with chronic shoulder pain because of an isolated subscapularis tear without trauma is described. Arthroscopy has proven to be the appropriate method for detailed visualisation of the injury and facilitates the operative planning. Furthermore, arthroscopy closes the problem of a "diagnostic gap". In the presented case, the results at the two year follow-up are excellent. The authors conclude that an operative approach is also justified in non-traumatic isolated ruptures of the subscapularis muscle.

Adult↗

[Injury and overuse pattern in professional ballet dancers].

AIM: The purpose of the study was to show the injury profile and common discomforts of professional ballet dancers and to examine factors that affect the frequency of the injuries, like age, gender, regeneration activities. METHOD: 42 female and 35 male dancers in German theaters were evaluated by a questionnaire, training observation, and physical examination. RESULTS: Common discomfort was described frequently in the lumbar spine (88%), the knee (80.5%), and the ankle (74%). 285 injuries occurred in the female, 282 in the male dancers during a 5-year period. The most frequent injuries were muscle strains and inflammations, mostly of the lower extremity (64%) and the torso (24%). Gender differences were found in shoulder injuries, which occurred in 9% of cases in men, compared to 2.5% in women. 73% of the injuries considered as severe were traumatically caused when performing jumps and lifts. Severe overuse injuries were mostly found in the lower extremity and the lumbar spine, caused by technical deficiencies. 54% still suffered from the consequences of the injury by returning pain, swelling or instability. CONCLUSION: This high amount of injuries can be reduced by continuous technical improvement, the use of auxiliary material like joint-protectors or mats and enough time for regeneration.

Adult↗

[Evidence based evaluation of conservative treatment options for patellar tendinitis syndromes].

INTRODUCTION: Patellar tendinopathy causes substantial morbidity in both professional and recreational athletes. There is no consensus about conservative treatment strategies for this condition. METHODS: With the help of the evidence-based medicine method it is estimated whether conservative treatment is appropriate for treating pain in this condition. RESULTS: 5 specialist articles that matched the clinical question were found in medical databases. One article was analyzed for clinical relevance. The evaluation showed that physiotherapeutic treatment of pain in combination with additional iontophoresis is more promising than physiotherapy alone. DISCUSSION: Current evidence suggests that traditional physiotherapy should be combined with additional therapeutic treatment. This requires further randomized prospective, placebo-controlled trials in order to confirm its efficiency. Prognostic effects of treatments should be included into these studies.

Arthralgia↗

[Is running associated with premature degenerative arthritis of the hip? A systematic review].

AIM: The study was performed to investigated correlations between running and degenerative arthritis of the hip, according to the principles of evidence-based medicine. METHOD: The database Medline, the Cochrane Library, the centre for Evidence Based Medicine in Oxford and the sports science database Spolit, Spofor and Spowis were scanned systematically for the keywords "arthritis, osteoarthritis, degenerative, hip, sports, running, jogging, walking". RESULTS: 10 retrospective case control studies and 3 prospective studies were included for further analysis. The clinical examinations reported in the prospective studies did not reveal a significant difference between runners and non-runners. In one study a slightly increased risk for signs of arthritis at the X-ray was found in runners below 50 years with a very high mileage. No increased risk for degenerative arthritis was reported in most of the retrospective studies. A few authors of retrospective studies reported a slightly to moderately increased risk. The pooled estimate of the included studies showed a slightly increased risk for degenerative arthritis in runners (pooled OR 1.24 95 % CI 0.87-1.85). However, the increased risk did not reach a level of statistical significance. The graphic analysis of the data with the technique of the funnel plot gives an OR of 1.04. CONCLUSION: There is no evidence that running is associated with an increased risk for degenerative arthritis of the hip. There is no evidence for a different risk in men and women.

Case-Control Studies↗

[Osteoarthritis from long-distance running?].

Long distance running has become a fashionable recreational activity. This study investigated the effects of external impact loading on bone and cartilage introduced by performing a marathon race. Seven beginners were compared to six experienced recreational long distance runners and two professional athletes. All participants underwent magnetic resonance imaging of the hip and knee before and after a marathon run. Coronal T1 weighted and STIR sequences were used. The pre MRI served as a baseline investigation and monitored the training effect. All athletes demonstrated normal findings in the pre run scan. All but one athlete in the beginner group demonstrated joint effusions after the race. The experienced and professional runners failed to demonstrate pathology in the post run scans. Recreational and professional long distance runners tolerate high impact forces well. Beginners demonstrate significant changes on the post run scans. Whether those findings are a result of inadequate training (miles and duration) warrant further studies. We conclude that adequate endurance training results in adaptation mechanisms that allow the athlete to compensate for the stresses introduced by long distance running and do not predispose to the onset of osteoarthritis. Significant malalignment of the lower extremity may cause increased focal loading of joint and cartilage.

Adult↗

[Jumper's knee--a review].

Jumper's knee has been defined as painful chronic overuse injury of the extensor mechanism of the knee joint. The disease has a high incidence in jumping sports and depends on training frequency and level of performance. Its natural course is protracted, repetitive, and often bilaterally occurring. Its etiology is a chronic overload of the knee extensor mechanism which is triggered by jumping sports (volleyball, basketball etc.) as well as different intrinsic (ligamentous laxity, Q-angle, patella height, tenderness, pattern of force development) and extrinsic dispositions (frequency of training, level of performance, hardness of underground). The place of pathology most often is the osteo-tendinous transition zone of the proximal patellar tendon. Histologic evaluation of the tendon showed that the disease is rather degenerative than inflammatory. The diagnosis is primarily based on the typical sports history, physical examination, and ultrasound. MRI is helpful in operation planning. Plain radiography, CT, and bone scans are used to rule out differential diagnoses. Therapy should be chosen according to the stage of the disease and usually starts with a non-surgical approach. This includes rest from sports activities, immobilisation, non-steroid antiphlogistics, para-tendinous cortisone injections, massage, electric therapy, ultrasound and extracorporal shock waves. Afterwards an increase of activities is begun (moderate training, adequate warm-up, ice cooling after activity, muscle stretching, eccentric strengthening of the quadriceps). Patella straps and soft insoles are used as prevention. Up to 42 % of patients need surgical therapy after failure of long-lasting non-surgical measures, carried out either open or arthroscopically. Surgical principles include excision of the para-tendon, excision of the degenerative tissue, resection of the lower patella pole, and longitudinal incisions into the tendon. Most patients are pain-free after surgery but return to sports only at a lower level.

Arthroplasty↗

Injuries in synchronized skating.

Synchronized skating is a relatively new competitive sport and data about injuries in this discipline are lacking. Therefore the purpose of this study was to investigate the frequency and pattern of acute and overuse injuries in synchronized skaters. Before and during the World Synchronized Skating Championship 2004, a questionnaire inquiring about the frequency of injuries in this skating discipline was given to 23 participating teams. A total of 514 women and 14 men senior skaters completed the questionnaires (100 % response). Two hundred and eighteen (42.4 %) female and 6 (42.9 %) male skaters had suffered from acute injuries during their synchronized skating career. As some skaters had suffered from more than one injury, the total number of acute injuries in females was 398 and in males 14. In female skaters 19.8 % of acute injuries were head injuries, 7.1 % trunk, 33.2 % upper, and 39.9 % lower extremity injuries. In male skaters 14.3 % were head injuries, 28.6 % upper, and 57.1 % lower extremity injuries, with no report of trunk injuries. Sixty-nine female and 2 male skaters had low back problems and 112 female and 2 male skaters had one or more overuse syndromes during their skating career. Of 155 overuse injuries in female skaters, 102 (65.8 %) occurred during their figure skating career, while 53 injuries (34.2 %) only occurred when they skated in synchronized skating teams. In male skaters, out of 5 overuse injuries, 4 (80 %) occurred in their figure skating career, while 1 (20 %) occurred during their synchronized skating career. Out of the total of 412 injuries, 338 (82 %) occurred during on-ice practice, while 74 (18 %) happened during off-ice training. Ninety-one (26.9 %) acute injures occurred while practicing individual elements, and 247 (73.1 %) on-ice injuries occurred while practicing different team elements. We conclude that injuries in synchronized skating should be of medical concern due to an increasing number of acute injuries, especially those that go beyond the soft tissue and include head injuries and fractures. We feel that these more significant injuries MAY TO SOME EXTENT BE attributable to the increasing physical demands and technical difficulty required of the teams now participating in a more competitive environment over the last four years.

Adolescent↗

Common injuries related to weightlifting: MR imaging perspective.

Weightlifting has evolved to become a ubiquitous form of exercise. Resistance training has been shown to have beneficial effects on both muscle and osseous maintenance and development. Competitive weightlifting sports continue to enjoy tremendous popularity, with participants striving to establish new standards in performance and more demanding personal goals. Thus, it is not surprising that we have also seen an increase in injuries related to weightlifting. Many of these injuries are radiographically occult and are best suited for evaluation by magnetic resonance (MR) imaging because many involve the soft tissues. In this article, we discuss some of the factors that contribute to these injuries and address the mechanisms of injury and the MR imaging manifestations of the more common injuries.

Athletic Injuries↗

Imaging of the overhead throwing athlete.

Knowledge of overhead throwing biomechanics is crucial to understand specific injuries encountered in throwing athletes on diagnostic imaging. Most specific injuries of overhead throwing athletes occur at the shoulder and elbow. Throwing athletes are susceptible to rotator cuff tears from tensile overload and external and internal impingement. The labrum is also commonly degenerated or torn secondary to overuse syndrome, internal impingement, and microtrauma. The elbow is typically injured secondary to excessive valgus forces during throwing. The ulnar collateral ligament, ulnar nerve, and common flexor tendon origin are all at increased risk of injury. Capitellar osteochondral injuries and loose intra-articular bodies are also frequent. Knowledge of injury pathophysiology is crucial to understanding the treatment rationale in throwing athletes.

Athletic Injuries↗

The biomechanics and imaging of soccer injuries.

Soccer is one of the most popular sports worldwide and requires the player to have considerable stamina while superimposing sprinting, jumping, tackling, rapid changes of direction, and kicking. This contact sport carries a significant risk for acute and overuse injuries, with the lower limb the region most frequently injured. This article discusses the biomechanics and current role of imaging in the management of several specific soccer injuries highlighting injuries of the ankle, pelvis, and groin and specific muscle and tendon injuries commonly encountered in this athletic population.

Athletic Injuries↗

[Dynamic ultrasound examination of the shoulder of golf players].

Although golf is becoming popular it can result in injury, usually from overuse and from poor technique. The shoulder is a commonly affected site, with the lead shoulder (or the left shoulder in the right-handed golfer) vulnerable to injury. With this study we tried to figure out any hyperlaxity of the lead shoulder using ultrasonography. 33 golf-players were investigated by questionnaire, clinical examination and dynamic ultrasonography. Neither clinically nor by using ultrasonography hyperlaxity of the shoulder was found. Nevertheless hyperlaxity followed by secondary impingement should be considered.

Adolescent↗

[Ultrasound imaging of the elbow joint. Loose joint bodies and osteochondrosis dissecans].

In 6 patients with loose bodies due to osteochondritis dissecans, trauma or chondromatosis at the elbow, an additional ultrasonic examination was performed. In all cases loose bodies as well as the osteochondral lesion at the radial head and trochlea humeri were seen. Ultrasonic examination of the elbow is recommended in addition to the mandatory x-ray examination. However, sonography enables reduction of x-ray exposure because additional x-ray tomography can be avoided.

Adolescent↗