Sports Medicine & Arthroscopy Journal Scan

PEDro systematic review update: the effectiveness of physiotherapy exercises in subacromical impingement syndrome.

Br J Sports Med. 2013 Jul 23;

Authors: Michaleff ZA, Kamper SJ

PMID: 23881891 [PubMed - as supplied by publisher]

Read more... http://www.ncbi.nlm.nih.gov/pubmed/23881891?dopt=Abstract

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Ramadan and Sport: Minimizing Effects Upon the Observant Athlete.

Sports Med. 2013 Jul 26;

Authors: Shephard RJ

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Trunk and Hip Biomechanics Influence Anterior Cruciate Loading Mechanisms in Physically Active Participants.

Am J Sports Med. 2013 Jul 24;

Authors: Frank B, Bell DR, Norcross MF, Blackburn JT, Goerger BM, Padua DA

Abstract
BACKGROUND:Excessive trunk motion and deficits in neuromuscular control (NMC) of the lumbopelvic hip complex are risk factors for anterior cruciate ligament (ACL) injury. However, the relationship between trunk motion, NMC of the lumbopelvic hip complex, and triplanar knee loads during a sidestep cutting task has not been examined. PURPOSE:To determine if there is an association between multiplanar trunk motion, NMC of the lumbopelvic hip complex, and triplanar knee loads with ACL injury during a sidestep cutting task. STUDY DESIGN:Descriptive laboratory study. METHODS:The hip and knee biomechanics and trunk motion of 30 participants (15 male, 15 female) were analyzed during a sidestep cutting task using an optoelectric camera system interfaced to a force plate. Trunk and lower extremity biomechanics were calculated from the kinematic and ground-reaction force data during the first 50% of the stance time during the cutting task. Pearson product moment correlation coefficients were calculated between trunk and lower extremity biomechanics. Multiple linear regression analyses were carried out to determine the amount of variance in triplanar knee loading explained by trunk motion and hip moments. RESULTS:A greater internal knee varus moment (mean, 0.11 ± 0.12 N·m/kg*m) was associated with less transverse-plane trunk rotation away from the stance limb (mean, 20.25° ± 4.42°; r = -0.46, P = .011) and a greater internal hip adduction moment

Effect of Excessive Contralateral Trunk Tilt on Pitching Biomechanics and Performance in High School Baseball Pitchers.

Am J Sports Med. 2013 Jul 24;

Authors: Oyama S, Yu B, Blackburn JT, Padua DA, Li L, Myers JB

Abstract
BACKGROUND:There is a growing number of pitching-related upper extremity injuries among young baseball pitchers; however, there is a lack of data on the identification of injury prevention strategies, particularly the prevention of injuries through the instruction/modification of technique. The identification of technical parameters that are associated with increased joint loading is needed. PURPOSE:To investigate the effects of excessive contralateral trunk tilt, a common technique identifiable by video observation, on pitching biomechanics and performance in high school baseball pitchers. The hypothesis was that this strategy is associated with greater joint loading and poor pitching performance. STUDY DESIGN:Descriptive laboratory study; Level of evidence, 3. METHODS:The 3-dimensional pitching biomechanics, ball speed, and frontal view of the pitching technique from 72 high school baseball pitchers were captured on video and analyzed. The videos were reviewed to determine if the pitcher's trunk was excessively contralaterally tilted at the instant of maximal shoulder external rotation by examining whether the side of the pitcher's head ipsilateral to the throwing limb deviated by more than a head width from a vertical line passing through the pitcher's stride foot ankle. Upper extremity kinetics and upper extremity/trunk kinematics between pitchers with and without excessive contralateral trunk tilt were compared using independent t tests.

Consensus criteria for defining 'successful outcome' after ACL injury and reconstruction: a Delaware-Oslo ACL cohort investigation.

Br J Sports Med. 2013 Jul 23;

Authors: Lynch AD, Logerstedt DS, Grindem H, Eitzen I, Hicks GE, Axe MJ, Engebretsen L, Risberg MA, Snyder-Mackler L

Abstract
BACKGROUND: No gold standard exists for identifying successful outcomes 1 and 2 years after operative and non-operative management of anterior cruciate ligament (ACL) injury. This limits the ability of a researcher and clinicians to compare and contrast the results of interventions.
PURPOSE: To establish a consensus based on expert consensus of measures that define successful outcomes 1 and 2 years after ACL injury or reconstruction.
METHODS: Members of international sports medicine associations, including the American Orthopaedic Society for Sports Medicine, the European Society for Sports Traumatology, Surgery, and Knee Arthroscopy and the American Physical Therapy Association, were sent a survey via email. Blinded responses were analysed for trends with frequency counts. A summed importance percentage (SIP) was calculated and 80% SIP operationally indicated consensus.

Increased risk of injury following red and yellow cards, injuries and goals in FIFA World Cups.

Br J Sports Med. 2013 Jul 23;

Authors: Ryynänen J, Dvorak J, Peterson L, Kautiainen H, Karlsson J, Junge A, Börjesson M

Abstract
OBJECTIVE: To study the relationship between potentially game-disrupting incidents (PGDIs; red and yellow cards, goals and injuries) and the injury incidence in football.
DESIGN: Prospective injury surveillance during three FIFA World Cups in 2002, 2006 and 2010. Official match statistics were obtained for all the matches played in the three tournaments.
SETTING: 2002, 2006 and 2010 FIFA World Cups.
PARTICIPANTS: Team physicians at the 2002, 2006 and 2010 FIFA World Cups.
MAIN OUTCOME MEASURES: Injury incidences and incidence rate ratios (IRRs).
RESULTS: The injury incidence was significantly higher during match periods within the minute of, or during a five-minute period following a yellow card, red card, another injury or a goal (PGDIs) than during other match periods (76.7/1000 match hours; 95% CI (66.6 to 87.9) vs 54.0/1000 match hours (46.9 to 61.9), p<0.001). There were significant differences in injury incidence between different match periods, with the highest injury incidence seen in the last 15 min of the first half (p<0.001). The PGDIs (other than injury) had a tendency to increase towards the end of the game and the most frequent PGDI was a yellow card. There was a risk ratio of 1.17 (95% CI 1.08 to 1.26) for injury, per PGDI (other injuries excluded) (p<0.001), and 1.15 (95% CI 1.06 to 1.24) after adjusted match time (p<0.001).

Does High Knee Flexion Cause Separation of Meniscal Repairs?

Am J Sports Med. 2013 Jul 23;

Authors: Lin DL, Ruh SS, Jones HL, Karim A, Noble PC, McCulloch PC

Abstract

Accelerated Weightbearing Rehabilitation After Matrix-Induced Autologous Chondrocyte Implantation in the Tibiofemoral Joint: Early Clinical and Radiological Outcomes.

Am J Sports Med. 2013 Jul 23;

Authors: Edwards PK, Ackland TR, Ebert JR

Abstract