دورية أكاديمية
Glenohumeral internal rotation deficits in baseball players with ulnar collateral ligament insufficiency.
| العنوان: | Glenohumeral internal rotation deficits in baseball players with ulnar collateral ligament insufficiency. |
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| المؤلفون: | Dines JS; Sports Medicine and Shoulder Service, The Hospital for Special Surgery, New York, New York, USA. dinesj@hss.edu, Frank JB, Akerman M, Yocum LA |
| المصدر: | The American journal of sports medicine [Am J Sports Med] 2009 Mar; Vol. 37 (3), pp. 566-70. Date of Electronic Publication: 2008 Dec 04. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Sage Publications Country of Publication: United States NLM ID: 7609541 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1552-3365 (Electronic) Linking ISSN: 03635465 NLM ISO Abbreviation: Am J Sports Med Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: 2004- : Thousand Oaks, CA : Sage Publications Original Publication: Baltimore, Williams & Wilkins. |
| مواضيع طبية MeSH: | Baseball/*injuries , Collateral Ligaments/*injuries , Humerus/*physiopathology , Range of Motion, Articular/*physiology , Shoulder Impingement Syndrome/*physiopathology, Adolescent ; Adult ; Case-Control Studies ; Chi-Square Distribution ; Collateral Ligaments/physiopathology ; Collateral Ligaments/surgery ; Humans ; Humerus/surgery ; Retrospective Studies ; Rotation ; Shoulder Impingement Syndrome/surgery ; Statistics, Nonparametric ; Torque |
| مستخلص: | Background: The kinetic chain of the throwing motion functions to optimize efficiency of proximal segments to decrease force loads seen at smaller, distal segments such as the ulnar collateral ligament. Several studies have shown that shoulder internal rotation forms the physiologic counter to the valgus torque generated during the late cocking phase of throwing. Previous studies have implicated decreased glenohumeral internal rotation as a cause of shoulder internal impingement. To date, an association between pathologic glenohumeral internal rotation deficit and elbow injury has not been exhibited. Hypothesis: Throwers with ulnar collateral ligament insufficiency will exhibit significantly increased glenohumeral internal rotation deficit. Study Design: Case control study; Level of evidence, 3. Methods: Twenty-nine baseball players with ulnar collateral ligament insufficiency were demographically matched with 29 control baseball players who had no history of shoulder, elbow, or cervical spine injury. The investigators measured passive glenohumeral internal and external rotation, elbow flexion and extension, and forearm pronation and supination. The Mann-Whitney test was used to analyze continuous variables. Results: There were no significant differences between the groups in terms of demographics. There was a significant difference in dominant arm internal rotation, with injured players having significantly less (P < .004), and in glenohumeral internal rotation deficit between players with ulnar collateral ligament insufficiency and those who were asymptomatic (28.5 degrees vs 12.7 degrees ; P < .001). Also, total range of motion was significantly decreased in the injured group. There were no significant differences in elbow or forearm range of motion between the groups. Conclusion: Our results indicate that pathologic glenohumeral internal rotation deficit may be associated with elbow valgus instability. This has important clinical implications both in terms of preventing ulnar collateral ligament injury and with regard to rehabilitating throwers after ulnar collateral ligament reconstruction. |
| تواريخ الأحداث: | Date Created: 20081209 Date Completed: 20090616 Latest Revision: 20220330 |
| رمز التحديث: | 20240628 |
| DOI: | 10.1177/0363546508326712 |
| PMID: | 19059890 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1552-3365 |
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| DOI: | 10.1177/0363546508326712 |