Baseball Players With an Ulnar Collateral Ligament Tear Display Increased Nondominant Arm Humeral Torsion Compared With Healthy Baseball Players

Meyer, Casey J.; Garrison, James C.; Conway, J.

doi:10.1177/0363546516664718

Cited by 22 publications

(16 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The dominant limbs with lower “default” humeral retrotorsion angle have the potential to go through greater adaptation in humeral retrotorsion, and thus are theorized to be more susceptible to injuries. 20, 45 On the contrary to these studies, we observed that the humeral retrotorsion was not predictive of shoulder or elbow injury in high school baseball players of pitchers.…”

Section: Discussioncontrasting

confidence: 93%

“…On the other hand, lower non-dominant limb humeral retrotorsion has been linked to injuries among high school pitchers. 20, 33, 45 The humeral retrotorsion angle of the non-dominant limb reflects the “default” humeral retrotorsion angle that the dominant limb would have if it were not subjected to repetitive torsional loading. The dominant limbs with lower “default” humeral retrotorsion angle have the potential to go through greater adaptation in humeral retrotorsion, and thus are theorized to be more susceptible to injuries.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Preseason screening of shoulder range of motion and humeral retrotorsion does not predict injury in high school baseball players

Oyama

Hibberd

Myers

2017

Journal of Shoulder and Elbow Surgery

View full text Add to dashboard Cite

Background Shoulder and elbow injuries are commonplace in high school baseball. While altered shoulder ROM and humeral retrotorsion angles have been associated with injuries, efficacy of preseason screening of these characteristics remains controversial. Methods We conducted preseason screenings for shoulder internal and external rotation range of motion (ROM) and humeral retrotorsion on a total of 832 high school baseball players, and tracked their exposure and incidence on throwing-related shoulder and elbow injuries over a subsequent season. Poisson regression with robust error variance was used to determine if preseason screening could identify injury risk in baseball players, and whether the injury risk was higher for pitchers compared to players who do not pitch. Results Shoulder rotation ROM or humeral retrotorsion at preseason did not predict risk of throwing-related upper extremity injury (p=0.15–0.89). Injury risk was 3.84 higher for baseball players who pitch compared to those who do not (95% CI =1.72–8.56, p=.001). Discussion Preseason measures of shoulder ROM and humeral retrotorsion may not be effective in identifying players who are at increased injury risk. Since shoulder ROM is a measure that fluctuates under variety of influence, future study should investigate if taking multiple measurements over a season can identify at-risk players. The usefulness of preseason screening may also depend on rigor of participation in sports. Future studies should investigate how preseason shoulder characteristics and participation factors (i.e. pitch count and frequency, competitive level, pitching in multiple leagues) interact to predict injury risk in baseball players. Level of evidence Level I, Prospective Design, Prognosis Study

show abstract

Section: Discussioncontrasting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Preseason screening of shoulder range of motion and humeral retrotorsion does not predict injury in high school baseball players

Oyama

Hibberd

Myers

2017

Journal of Shoulder and Elbow Surgery

View full text Add to dashboard Cite

show abstract

“…However, a recent study showed there was no significant difference in mean dominant-arm humeral retrotorsion between pitchers with previous UCL reconstructions compared to uninjured controls. 67 Therefore, it may be decreased TRM, and not just GIRD, that predisposes pitchers to UCL injuries.…”

Section: Pathologymentioning

confidence: 99%

Glenohumeral internal rotation deficit in throwing athletes: current perspectives

Rose¹,

Noonan²

2018

OAJSM

View full text Add to dashboard Cite

Glenohumeral internal rotation deficit (GIRD) is an adaptive process in which the throwing shoulder experiences a loss of internal rotation (IR). GIRD has most commonly been defined by a loss of >20° of IR compared to the contralateral shoulder. Total rotational motion of the shoulder is the sum of internal and external rotation and may be more important than the absolute value of IR loss. Pathologic GIRD has been defined as a loss of IR combined with a loss of total rotational motion. The leading pathologic process in GIRD is posterior capsular and rotator-cuff tightness, due to the repetitive cocking that occurs with the overhead throwing motion. GIRD has been associated with numerous pathologic conditions, including posterior superior labral tears, partial articular-sided rotator-cuff tears, and superior labral anterior-to-posterior tears. The mainstay of treatment for patients with GIRD is posterior capsular stretching and strengthening to improve scapular mechanics. In patients who fail nonoperative therapy, shoulder arthroscopy can be performed. Arthroscopic surgery in the high-level throwing athlete should be to restore them to their functional baseline with the minimum amount of intervention possible.

show abstract

“…Even more recent studies have suggested the possibility of preinjury structural differences related to UCL injury. 3,18…”

mentioning

confidence: 99%

Influence of Pitching Release Location on Ulnar Collateral Ligament Reconstruction Risk Among Major League Baseball Pitchers

Portney

Buchler

Lazaroff

et al. 2019

Orthopaedic Journal of Sports Medicine

View full text Add to dashboard Cite

Background: Medial ulnar collateral ligament (UCL) reconstruction is a common procedure performed among Major League Baseball (MLB) pitchers. The etiology of UCL injury is complex and is not entirely understood. Hypothesis: To better understand risk factors for requiring UCL reconstruction, we hypothesized that pitchers who eventually undergo the procedure will exhibit different throwing mechanics as measured by pitch-tracking data points, such as velocity and release location. Study Design: Case-control study; Level of evidence, 3. Methods: Pitch-tracking and demographic data were gathered for 140 MLB pitchers who had undergone UCL reconstruction between the 2010 and 2017 seasons. Pitch type, release location, and velocity were compared between the surgical cohort and a matched-control cohort. Results: When compared with controls, the mean pitch release location for pitchers who required UCL reconstruction was 12.2 cm more lateral in the year immediately preceding surgery ( P = .001). Furthermore, within the surgical cohort, the horizontal release location was 3.4 cm more lateral immediately preceding surgery compared with 2 years earlier ( P = .036). Binary logistic regression indicated an odds ratio of 0.51, suggesting a roughly 5% increased odds of UCL reconstruction for every 10 cm of increased lateral release location ( P = .048). Both the surgical and the control cohorts threw similar rates of fastballs and had similar mean pitch velocity and fastball velocity. Control pitchers displayed a significant decrease over time in mean pitch velocity ( P = .005) and mean fastball velocity, while pitchers in the UCL reconstruction cohort did not ( P = .012). Conclusion: Pitch tracking indicates that the mean release point is more lateral in pitchers preceding UCL reconstruction as compared with controls, suggesting that a more lateral pitch release location is an independent risk factor for UCL injury and reconstruction.

show abstract

Baseball Players With an Ulnar Collateral Ligament Tear Display Increased Nondominant Arm Humeral Torsion Compared With Healthy Baseball Players

Cited by 22 publications

References 25 publications

Preseason screening of shoulder range of motion and humeral retrotorsion does not predict injury in high school baseball players

Preseason screening of shoulder range of motion and humeral retrotorsion does not predict injury in high school baseball players

Glenohumeral internal rotation deficit in throwing athletes: current perspectives

Influence of Pitching Release Location on Ulnar Collateral Ligament Reconstruction Risk Among Major League Baseball Pitchers

Contact Info

Product

Resources

About