Diagnosis and management of thoracic and rib pain in rowers

Thoracic and lumbar injuries can dramatically affect a rower’s performance and lead to time lost from practice and competition. Even though the number of injuries encountered by elite and competitive rowers appears to have increased over the past 20 years, rowing-specific research has been very limited in its scope and ability to guide practitioners caring for these athletes. Specifically, case reports relating to rib stress fractures abound, yet very few controlled studies discuss the mechanisms of injury and appropriate management of thoracic injuries. We believe that the identification and treatment of kinetic chain abnormalities in areas distant to the site of injury, such as the lower extremities, pelvis, and lumbar spine, should be an integral part of thoracic injury evaluation and treatment. Simultaneous evaluation of training regimen and equipment is also crucial to the management of rowers suffering from thoracic injuries.     

Sports career-related musculoskeletal injuries: long-term health effects on former athletes

Despite the high absolute number of sports injuries, most are not usually severe and consequent permanent disabilities are uncommon. Based on epidemiological data, former athletes have more degenerative changes in their joints and spine compared with control populations; however, at old age, their good muscle function related to high physical activity level seems to compensate for the effects of degenerative changes on function. There are former athletes who report disabilities due to different types of musculoskeletal injuries from sports careers. This article attempts to characterise this problem; however, more detailed studies are needed, particularly because the training regimens of the athletes seem to be increasingly demanding.     

Catastrophic injuries in pole-vaulters

Pole vaulting is a unique sport in that athletes often land from heights ranging from 10 to 20 feet. We retrospectively reviewed 32 catastrophic pole-vault injuries that were reported to the National Center for Catastrophic Sports Injury Research between 1982 and 1998. The purpose of this study was to determine the mechanisms of injury so that preventive strategies can be implemented. Information was obtained by means of a telephone interview with someone familiar with the accident. All injuries occurred in male athletes at an average age of 17.5 years; 31 were catastrophic head injuries and 1 was a thoracic spine fracture that resulted in paraplegia. Three common mechanisms were identified: 17 (53%) athletes landed with their body on the landing pad and their head on the surrounding hard ground, 8 (25%) landed in the vault box after being stranded at the height of the jump, and 5 (16%) completely missed the landing pad. The mechanism of injury in the remaining two athletes was unknown. The accident resulted in death in 16 (50%) athletes and in permanent disability in 6 (19%). Increasing the minimum landing pad size and enforcing the rule requiring soft surfaces adjacent to the landing pads are the primary recommendations for preventing injuries. The authors discuss other rule and equipment changes that may help reduce the occurrence of future injuries.     

On-field issues of the C-spine-injured helmeted athlete

Football is a violent collision sport and can lead to various serious injuries. Cervical spine injuries are numerous, ranging from bony fractures and dislocations to spinal cord disruption. These injuries can be a devastating and debilitating. Although most injuries that occur are self-limiting there is a significant proportion that can cause permanent disability. Due to the equipment used in football, unique on-field care is implemented in evaluating athletes with possible cervical spine injury. Early preseason preparation and proper on-field intervention can help improve outcomes for these athletes.     

Epidemiology of injuries during the Wheelchair Basketball World Championships 2018: A prospective cohort study

Several international sports federations have implemented a standardized injury reporting system during their championships. However, very few studies have investigated athletes with disabilities during major championships apart from the Paralympic Games. Therefore, the aim of this study was to assess the rate and characteristics of injuries during the Wheelchair Basketball World Championships 2018 (WBWC). This prospective cohort study was conducted during the WBWC held in Hamburg, Germany, from August 16 to August 26, 2018. Physicians or physiotherapists of all 28 participating teams (total 336 players) were asked to report all newly incurred injuries (with location, diagnosis, cause, and estimated duration of absence) daily on a standardized injury report form. Prevalence and incidence rates were calculated. Medical staff of 11 teams (132 players) reported 100 injuries, equivalent to 75.8 per 100 players (95% CI: 60.9-90.7) or 68.9 per 1000 player-days (55.4-82.4). Eight time-loss injuries were reported (6.1 injuries per 100 players [95% CI: 1.9-10.3] or 5.5 injuries per 1000 player-days [1.7-9.3]). More injuries were incurred during matches (n = 68) than during training. Most injuries affected the neck/cervical spine (16%), thoracic spine/upper back (15%), and shoulder (14%). The most frequent diagnosis was muscle spasms (25%), the most frequent cause was overuse (52%). A high rate of non–time-loss injuries compared to Paralympic Games was reported. Future studies should focus on the etiology of muscle spasms and further identify injury mechanisms of traumatic and overuse injuries in wheelchair basketball players to develop adequate preventive measures.     

MR imaging of the distribution and location of acute hamstring injuries in athletes

OBJECTIVE: Although hamstring injuries are common in athletes, the distribution and location of such injuries have not been well defined. We used MR imaging to determine the frequency of injury by muscle, involvement of one or more muscles, and location of injuries within the musculotendinous unit. SUBJECTS AND METHODS: We performed MR imaging on 15 consecutive college athletes with clinically diagnosed acute hamstring injuries. A hamstring injury was diagnosed and located on MR imaging by identifying high signal intensity within the muscle on T2-weighted images. RESULTS: We found that 10 athletes had injuries of a single muscle with six injuries of the biceps femoris, three of the semitendinosus, and one of the semimembranosus. In an additional five athletes, we found primary injuries of the biceps femoris and secondary injuries of the semitendinosus. The injuries occurred in diverse locations within the muscles including five injuries at the proximal musculotendinous junction, two at the distal musculotendinous junction, four within the proximal half of the muscle belly, and four in the distal half. All eight intramuscular injuries were located at the musculotendinous junction within the muscle. CONCLUSION: The biceps femoris is the most commonly injured hamstring muscle and the semitendinosus is the second most commonly injured. Although hamstring injuries often involve one muscle injured proximally, multiple muscles were involved in 33% of athletes (5/15) and the injuries were distal in 40% of athletes (6/15). All intramuscular injuries occurred at the musculotendinous junction, either at the ends of the muscle or within the muscle belly.     

Nerve injury about the shoulder in athletes, part 2: long thoracic nerve, spinal accessory nerve, burners/stingers, thoracic outlet syndrome

Nerve injuries about the shoulder in athletes are being recognized with increasing frequency. Prompt and correct diagnosis of these injuries is important to treat the patient and to understand the potential complications and natural history, so as to counsel our athletes appropriately. This 2-part article is a review and an overview of the current state of knowledge regarding some of the more common nerve injuries seen about the shoulder in athletes, including long thoracic nerve, spinal accessory nerve, burners and stingers, and thoracic outlet syndrome. Each of these clinical entities will be discussed independently, reviewing the anatomy, mechanism of injury, patient presentation (history and examination), the role of additional diagnostic studies, differential diagnosis, and management.     

An approach to medical imaging for sports-related injuries

Medical imaging plays a valuable role in the evaluation and management of sports-related injuries. Although most acute injuries can be evaluated satisfactorily by clinical assessment and standard radiographs, some types of injuries require additional imaging for localization and characterization. The more advanced technologies (bone scintigraphy, computed tomography [CT], and magnetic resonance imaging [MRI]) provide sensitive physiological or detailed anatomic information in evaluating the athletes complaints. Stress injuries are common sports-related injuries, and they are detected most frequently by bone scintigraphy. Pars interarticularis injuries of the spine are best identified by bone scintigraphy. Other anatomic regions of stress injury include upper extremity complaints from throwing sports and lower extremity symptoms from running and jumping activities.When the management of symptoms is uncertain based on clinical assessment and plain radiographs and the area of involvement is not well defined, bone scintigraphy is extremely sensitive to injuries causing increased bone turnover. To show detailed anatomy, the cross-sectional modalities (CT and MRI) are without equal. CT allows exquisite bone detail when subtle injuries, particularly in areas of complex anatomy, are suspected at a specific site. MRI is the procedure of choice when bone marrow and soft-tissue injuries are of concern in a specific anatomic region.     

Characteristics of acute groin injuries in the adductor muscles: A detailed MRI study in athletes

Acute adductor injuries account for the majority of acute groin injuries; however, little is known about specific injury characteristics, which could be important for the understanding of etiology and management of these injuries. The study aim was to describe acute adductor injuries in athletes using magnetic resonance imaging (MRI ). Male athletes with acute groin pain and an MRI confirmed acute adductor muscle injury were prospectively included. MRI was performed within 7 days of injury using a standardized protocol and a reliable assessment approach. 156 athletes presented with acute groin pain of which 71 athletes were included, median age 27 years (range 18‐37). There were 46 isolated muscle injuries and 25 athletes with multiple adductor injuries. In total, 111 acute adductor muscle injuries were recorded; 62 adductor longus, 18 adductor brevis, 17 pectineus, 9 obturator externus, 4 gracilis, and 1 adductor magnus injury. Adductor longus injuries occurred at three main injury locations; proximal insertion (26%), intramuscular musculo‐tendinous junction (MTJ ) of the proximal tendon (26%) and the MTJ of the distal tendon (37%). Intramuscular tendon injury was seen in one case. At the proximal insertion, 12 of 16 injuries were complete avulsions. This study shows that acute adductor injuries generally occur in isolation from other muscle groups. Adductor longus is the most frequently injured muscle in isolation and in combination with other adductor muscle injuries. Three characteristic adductor longus injury locations were observed on MRI , with avulsion injuries accounting for three‐quarters of injuries at the proximal insertion, and intramuscular tendon injury was uncommon.     

Cervical spine injuries and their neurologic implications

This article presents the neurologic implications of cervical spine injuries by reviewing (1) cervical spine anatomy, (2) initial patient evaluation, (3) the type of neurologic injuries that can occur, (4) the treatment of athletes with these injuries, and (5) criteria for returning to activity.     

Magnetic resonance imaging of sports injuries to the cervical spine

Fortunately, serious injuries to the cervical spine in athletes are rare. Most injuries are self-limited and related to sprains and strains. Although radiographs may be used to screen for fractures, potentially serious soft-tissue injuries require additional diagnostic techniques. In these cases, advanced imaging with computed tomography and/or magnetic resonance imaging (MRI) is important to assess the injury and determine treatment and prognosis. MRI is well suited to imaging the cervical spine and to evaluate injuries. This article reviews cervical spine imaging in the athlete, with an emphasis on MRI. It groups pathology into stability, impingement, and impairment and discusses causes and radiological assessment of each group.     

Epidemiology of back pain in the athlete

Back pain and injuries are common complaints of athletes. The nature of the sport involved with the specific stresses that it places on the athlete's spine may play a role in the injuries incurred. These injuries may limit an athlete's function and hinder performance; however, the majority of these insults are self-limiting and respond well to conservative measures. Based on the epidemiologic data, it appears that possibly the single most important step in reducing the back pain experienced by athletes would involve the performance of a structured back-strengthening program. Such a plan might reduce the most common diagnostic entities encountered by the athlete with back pain.     

Acute Knee Injuries in Young Athletes

In brief Juvenile and adolescent athletes brief are prone to most of the same knee injuries as adults, but skeletal immaturity makes them vulnerable to certain knee injuries unique to their age and level of maturation. Usually these injuries involve the growing cartilage on the joint surface or at the epiphyseal plate. A stress that would cause a ligament sprain or muscle strain in an adult may cause a growth plate fracture or avulsion in a skeletally immature athlete.     

Radionuclide Imaging of Musculoskeletal Injuries in Athletes with Negative Radiographs

In brief: Radionuclide bone scans can be useful in the diagnostic evaluation of musculoskeletal injuries in athletes. Bone scans can detect shinsplints, stress fractures, and muscle injuries before they are detectable on radiographs. Prognosis can be accurately assessed, allowing appropriate treatment to proceed without delay. The authors discuss the use of bone scans and identify musculoskeletal injuries that are associated with specific sports, such as stress fracture of the femur (soccer), tibia (running), scapula (gymnastics), and pars interarticularis (football or lacrosse).     

Lumbar spine MRI in the elite-level female gymnast with low back pain

Objective Previous studies have shown increased degenerative disk changes and spine injuries in the competitive female gymnast. However, it has also been shown that many of these findings are found in asymptomatic athletic people of the same age. Previous magnetic resonance imaging (MRI) studies evaluating the gymnastic spine have not made a distinction between symptomatic and asymptomatic athletes. Our hypothesis is that MRI will demonstrate the same types of abnormalities in both the symptomatic and asymptomatic gymnasts.Design Olympic-level female gymnasts received prospectively an MRI exam of the lumbar spine. Each of the gymnasts underwent a physical exam by a sports medicine physician just prior to the MRI for documentation of low back pain. Each MRI exam was evaluated for anterior apophyseal ring avulsion injury, compression deformity of the vertebral body, spondylolysis, spondylolisthesis, degenerative disease, focal disk protrusion/extrusion, muscle strain, epidural mass, and bone-marrow edema.Patients Nineteen Olympic-level female gymnasts (age 12–20 years) were evaluated prospectively in this study. All of these gymnasts were evaluated while attending a specific training camp.Results Anterior ring apophyseal injuries (9/19) and degenerative disk disease (12/19) were common. Spondylolysis (3/19) and spondylolisthesis (3/19) were found. Focal bone-marrow edema was found in both L3 pedicles in one gymnast. History and physical exam revealed four gymnasts with current low back pain at the time of imaging. There were findings confined to those athletes with current low back pain: spondylolisthesis, spondylolysis, bilateral pedicle bone-marrow edema, and muscle strain.Conclusions Our initial hypothesis was not confirmed, in that there were findings that were confined to the symptomatic group of elite-level female gymnasts.     

Quadratus lumborum asymmetry and lumbar spine injury in cricket fast bowlers

ObjectivesPrevious studies have demonstrated quadratus lumborum asymmetry in cricket fast bowlers, but there has been conflicting evidence regarding the relationship to lumbar spine injury, particularly vertebral bone stress injuries. This study investigated the relationship between quadratus lumborum asymmetry and lumbar spine injury in adolescent cricket fast bowlers.DesignThe study was a prospective cohort design.MethodsMagnetic resonance imaging of 38 adolescent cricket fast bowlers was completed prior to a cricket season, and the cross sectional area of the quadratus lumborum muscle was measured at each lumbar spinal level. The bowlers were followed through the cricket season and those that reported lumbar spine injuries were investigated and classified as either having a soft tissue injury or a bone stress injury. The pre-season cross sectional area of quadratus lumborum was associated with injury status at the conclusion of the cricket season.ResultsTwenty-one percent of the cohort developed lumbar bone stress injuries during the cricket season. There was no significant relationship between lumbar spine injury and quadratus lumborum cross sectional area.ConclusionsA high incidence of lumbar bone stress injuries was demonstrated in adolescent fast bowlers. Unlike previous research that demonstrated a link between lumbar spine bone stress injuries and quadratus lumborum cross-sectional area, no such relationship was found.     

Warm-up and muscular injury prevention. An update

Musculotendinous injuries are responsible for a significant proportion of injuries incurred by athletes. Many of these injuries are preventable. Importantly, musculotendinous injuries have a high incidence of recurrence. Thus, muscle injury prevention is advocated by coaches and trainers. Yet, most of the recommendations for muscle injury prevention are attempted by athletes and taught by coaches without supporting scientific evidence. This paper reviews the mechanics of muscular injury, associated and predisposing factors, and methods of prevention with a review of the supporting research and rationale for these methods with an emphasis on warm-up, stretching and strengthening. Muscles that are capable of producing a greater force, a faster contraction speed and subjected to a greater stretch are more likely to become injured. Many factors have been associated with muscular injury. From current research, some conclusions and recommendations for muscle injury prevention can be made. Overall and muscular conditioning and nutrition are important. Proper training and balanced strengthening are key factors in prevention of musculotendinous injuries as well. Warm-up and stretching are essential to preventing muscle injuries by increasing the elasticity of muscles and smoothing muscular contractions. Improper or excessive stretching and warming up can, however, predispose to muscle injury. Much research is still needed in this important aspect of sports medicine.     

Cervical spine injury management in the helmeted athlete

The relative incidence of catastrophic cervical spine injury in sports is low compared to other injuries. However, the potential catastrophic and life-altering consequences of spine injury cause understandable concern regarding the prehospital management and care of the cervical-spine-injured athlete. This is complicated when injured athletes participate in equipment-intensive sports, such as football, where helmets and facemasks are potential barriers to obtaining immediate access to the athlete's airway. Cervical spine injuries in these cases necessitate delicate and precise management, often involving the combined efforts of multiple health-care providers. The outcome of a catastrophic cervical spine injury is dependent on the efficiency of this management process and timeliness of transfer to a controlled environment for diagnosis and treatment.     

Practical management: common medical problems in disabled athletes.

Disabled athletes face many challenges during training and competition. As the number of disabled athletes grows, sports medicine professionals must become proficient in dealing with this population. A functional classification system is used to classify disabled athletes into 1 of 6 categories: wheelchair athletes, amputees, athletes with cerebral palsy, visual impairment, intellectual impairment, and les autres. Injury patterns have been identified for certain groups, with wheelchair athletes typically sustaining upper extremity injuries, blind athletes sustaining lower extremity injuries, and cerebral palsy athletes sustaining both. Common problems affecting wheelchair athletes include autonomic dysreflexia, difficulty with thermoregulation, pressure sores, neurogenic bladder, premature osteoporosis, peripheral nerve entrapment syndromes, and upper extremity injuries. Cerebral palsy athletes often have injuries involving the knee and foot due to problems with spasticity and foot deformities. Amputee athletes sustain injuries to the stump, spine, and intact limbs, while blind athletes suffer lower extremity injuries. Intellectually disabled athletes frequently have underlying ocular and visual defects, congenital cardiac anomalies, and atlantoaxial instability that predispose them to injuries. This article reviews key information pertinent to the care of these athletes.