Prevention of Ulnar Collateral Ligament (UCL) Injuries in Minor League Pitchers

Study Overview
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Brief Summary
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This is a study of the muscle stabilizers of the elbow with respect to the prevention of Ulnar Collateral Ligament (UCL) injuries in pitchers. Pitchers are assessed at spring training and end of season for approximately 5 years. Pronator, flexor digitoum superficialis (FDS), and wrist flexion strength will be measured and correlated with upper extremity injuries and time missed from pitching. The investigators will also be measuring loss of strength over the season. The goal is to learn whether strength in these muscles prevents UCL injuries and finally whether these muscles can be strengthened to avoid such injuries.

Detailed Description
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The goal of this study is to assess whether the strengths of the secondary muscular stabilizers toward valgus stress at the elbow, the wrist flexors, flexor digitorum superficialis, and pronator teres emanating from the medial epicondyle, affect the incidence of ulnar collateral ligament injuries of the elbows in pitchers. Pitchers in the minor leagues of a single professional baseball club will have the strength of these secondary muscular stabilizers assessed and then correlated to ulnar collateral ligament injuries and time missed from baseball season and subsequent seasons. A secondary goal is to assess whether strengthening exercises targeted toward these muscular stabilizers of the elbow can decrease the incidence of ulnar collateral ligament injuries in young baseball pitchers. This could impact the field by changing the emphasis from reconstruction and rehabilitation of ulnar collateral ligament injuries to prevention.

Official Title
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The Effect of Dynamic Stabilizers for Valgus Stability of the Elbow in Professional Baseball Players

Conditions
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Elbow Injuries, Sprain Ulnar Collateral Ligament, Upper Extremity Injuries, Strain of Ulnar Collateral Ligament, Complete Tear Ulnar Collateral Ligament

Intervention / Treatment
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* Other: Strengthening program
* Other: Exercise program


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Pitchers that are currently on a minor league baseball team. Exclusion Criteria: Pitchers that currently have upper extremity injuries or are in active rehab for upper extremity injury.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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Male

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Screening
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: Minor league pitchers<br>Minor league pitchers from a single professional baseball organization. Strength tests of the elbows will be administered at spring training and end of season for 5 years. If strength correlates to injury, strengthening and exercise programs may be established to target the stabilizers of the elbows. | Other: Strengthening program<br>* Strengthening programs may be established to target the stabilizers of the elbows<br>Other: Exercise program<br>* Exercise program may be established to target the stabilizers of the elbows.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The Correlation of Strength to UCL Injuries in Minor League Pitchers | After measuring strength of elbow stabilizers for up to five years, we will determine whether strength correlates with UCL injuries. | 5 years | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The Diminution of Strength in Minor League Pitchers | We will measure the diminution of strength over the course of a baseball season. | 5 years | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Ulnar collateral ligament, elbow injuries, dynamic elbow stabilizers, Tommy John's procedure, elbow injuries in pitchers