Ultrasound-guided sclerosis of neovessels in patellar tendinopathy: a prospective study of 101 patients.

Background: A randomized controlled study has shown promising clinical results after treatment with sclerosing injections in a group of patients with patellar tendinopathy, but no study has investigated medium- or long-term outcome in a large and unselected group of patients.

Purpose: To investigate if sclerosing treatment would affect the level of patellar tendon pain and knee function after 24 months in a large group of patients with patellar tendinopathy.

Study Design: Case series; Level of evidence, 4.

Injury incidence in qualification runs versus final runs in FIS World Cup snowboard cross and ski cross.

Background: In the International Ski Federation (FIS), World Cup (WC) snowboard cross (SBX) and ski cross (SX), the injury incidence in individual qualification runs versus final runs in heats of four athletes is unknown. Objective To investigate the injury incidence in individual qualification runs versus final runs of SBX and SX.

Methods: Injuries were recorded by the FIS injury surveillance system (FIS ISS) through retrospective athlete interviews at the end of each season during four WC seasons (2006-2010).

Sports helmets now and in the future.

The paper reports on a symposium on sports helmets and presents a synthesis of information and opinion from a range of presenters and disciplines. A review of the literature shows that helmets play an important role in head injury prevention and control. Helmets have been shown to be very efficacious and effective in a range of sports and in preventing specific head injury risks, especially moderate to severe head injury.

High prevalence of shoulder pain among elite Norwegian female handball players.

Clinical experience indicates that a substantial number of handball players may suffer from shoulder pain, but they continue to play despite having shoulder pain problems. The aim of this study was to evaluate the prevalence and consequences of shoulder pain problems among Norwegian female elite handball players. In the preseason of the 2007-2008 season, 179 players from all 12 teams of the Norwegian elite league went through the following tests: internal and external shoulder range of motion, apprehension, relocation test, and shooting velocity.

Mechanisms of injuries in World Cup Snowboard Cross: a systematic video analysis of 19 cases.

Background: Snowboard cross (SBX) became an official Olympic sport in 2006. This discipline includes manoeuvring several obstacles while competing in heats. It is common for the riders to collide, making this sport both exciting and at risk of injuries.

Risk factors for injuries in alpine skiing, telemark skiing and snowboarding--case-control study.

Background: Alpine skiing and snowboarding have a substantial risk of injuries, but precise risk factor estimates are limited. Objective To determine the risk factors among skiers and snowboarders.

Study Design: Case-control study.

Events leading to anterior cruciate ligament injury in World Cup Alpine Skiing: a systematic video analysis of 20 cases.

Background: The authors have recently identified three main mechanisms for anterior cruciate ligament (ACL) injuries among World Cup (WC) alpine skiers, termed as "the slip-catch", "the landing back-weighted" and "the dynamic snowplow". However, for a more complete understanding of how these injuries occur, a description of the events leading to the injury situations is also needed.

Objective: To describe the skiing situation leading to ACL injuries in WC alpine skiing.

Intrinsic risk factors for acute knee injuries among male football players: a prospective cohort study.

This prospective cohort study was conducted to identify the risk factors for acute knee injuries among male football players. A total of 508 players representing 31 amateur teams were tested during the 2004 preseason for potential risk factors for knee injury through a questionnaire on previous injury, Knee Osteoarthritis Outcome Score (KOOS) and a clinical examination. Generalized estimating equations were used in univariate analyses to identify candidate risk factors, and factors with a P-value <0.

Ultrasound-guided sclerosing treatment in patients with patellar tendinopathy (jumper's knee). 44-month follow-up.

Background: A randomized controlled study has shown good clinical results after treatment with sclerosing injections into the area with neovessels in patients with patellar tendinopathy, but no study has investigated medium- or long-term outcomes.

Purpose: This study investigates the effect of sclerosing treatment 44 months (range, 42-47 months) after start of treatment.

Study Design: Case series; Level of evidence, 4.

Kinematics and kinetics of an accidental lateral ankle sprain.

Ankle sprains are common during sporting activities and can have serious consequences. Understanding of injury mechanisms is essential to prevent injuries, but only two previous studies have provided detailed descriptions of the kinematics of lateral ankle sprains and measures of kinetics are missing. In the present study a female handball player accidentally sprained her ankle during sidestep cutting in a motion analysis laboratory.

Injectable agents derived from or targeting vascularity: has clinical acceptance in managing tendon disorders superseded scientific evidence?

Objectives: To report outcomes after sclerosing, platelet-rich plasma (PRP) and autologous blood injection therapies as a treatment for tendinopathy.

Methods: We searched Pubmed for clinical trials on sclerosing, PRP and autologous blood injections for tendinopathy. We scored the quality of the studies using a modified Coleman Methodological Score (CMS) with 9 criteria, which results in a final score between 0 and 90.

Mechanisms of anterior cruciate ligament injury in World Cup alpine skiing: a systematic video analysis of 20 cases.

Background: There is limited insight into the mechanisms of anterior cruciate ligament injuries in alpine skiing, particularly among professional ski racers.

Purpose: This study was undertaken to qualitatively describe the mechanisms of anterior cruciate ligament injury in World Cup alpine skiing.

Study Design: Case series; Level of evidence, 4.

Correlation between two-dimensional video analysis and subjective assessment in evaluating knee control among elite female team handball players.

Poor frontal plane knee control has been shown to be a risk factor for anterior cruciate ligament injuries in ball/team sports. It is necessary to develop simple tests that can identify players with poor knee control and among other factors be able to optimise preventive training programmes. The present study investigated the correlation between a two-dimensional (2D) video analysis and subjective assessment performed by one physiotherapist in evaluating knee control.

Are skilled players at greater risk of injury in female youth football?

Background: Knowledge of skill-related risk factors for injury in football is limited.

Objective: To investigate whether there is an association between football skills and risk of injury in football.

Study Design: Prospective cohort study of the incidence of injuries and a retrospective evaluation of the players' skill-level.

Overuse injuries in professional road cyclists.

Background: Little epidemiological information exists on overuse injuries in elite road cyclists. Anecdotal reports indicate anterior knee pain and lower back pain may be common problems.

Purpose: This study was conducted to register overuse injuries among professional road cyclists with special focus on anterior knee and lower back pain.

Injuries among World Cup freestyle skiers.

Background: Limited knowledge exists on injuries among professional freestyle skiers.

Objective: To describe the risk of injury and injury patterns among competitive World Cup (WC) freestyle skiers during the competitive season.

Methods: Retrospective interviews were conducted with WC freestyle skiers from 20 nations in a cohort study at the end of the 2006-2007, 2007-2008 and 2008-2009 winter seasons, and all acute injuries occurring during the 4.

Risk of injury on third-generation artificial turf in Norwegian professional football.

Background: Artificial turf is used extensively in both recreational and elite football in areas with difficult climatic conditions.

Objective: To compare the risk for acute injuries between natural grass (NG) and third-generation artificial turf (3GAT) in male professional football. study design: Prospective cohort study.

Injury risk on artificial turf and grass in youth tournament football.

The aim of this prospective cohort study was to investigate the risk of acute injuries among youth male and female footballers playing on third-generation artificial turf compared with grass. Over 60,000 players 13-19 years of age were followed in four consecutive Norway Cup tournaments from 2005 to 2008. Injuries were recorded prospectively by the team coaches throughout each tournament.