Clinical trial NCT04453878: Ultrasound-guide Corrected Glenohumeral Internal Rotation Deficit
Official title: Using Ultrasound-guide Corrected Glenohumeral Internal Rotation Deficit as a Risk Factor to Predict Shoulder Injuries in Baseball Players
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Glenohumeral Internal Rotation Deficit
Keywords: shoulder injury,ultrasound
Lead sponsor: National Taiwan University Hospital
Sponsor class: OTHER
First posted: 2020-07-01
Enrollment: 106
Sex: ALL
Minimum age (years): 12
Maximum age (years): 40
Standard ages: CHILD
ADULT
Accepts healthy volunteers: yes
Observational model: OTHER
Time perspective: PROSPECTIVE
Sampling method: PROBABILITY_SAMPLE
Study population: A baseball team usually consists of 30 to 40 players. Therefore, we will recruit 3 or 4 local baseball teams in Taipei and New Taipei city. Based on the consideration of schedule between baseball teams and our research team, We will collect 7 subjects per day and the recruitment time will last for about a month.

Brief summary: Background:

Glenohumeral internal rotation deficit (GIRD) is believed to be one of the risk factors contributing to shoulder injuries. In addition, athletes with GIRD of greater than 20° appear to be at a greater risk for the shoulder injuries and surgery. Recently, GIRD can be divided in anatomical GIRD and pathological GIRD (pGIRD). The dominant arm of the athletes with pGIRD have not only humeral retrotorsion (HR) but also stiffer posterior capsule. The soft-tissue effect is believed to be the key point in pathological cascade of throwers. Therefore, the previous studies use gross GIRD as a risk factor may be modified by ultrasound-guide corrected GIRD.

Objective:

There are 4 objectives for the present study: (1) to investigate the Receiver operating characteristic (ROC) curves of the gross GIRD; (2) to investigate the ROC curves of the ultrasound-guide corrected GIRD; (3) to compare the area under curve (AUC) of the two methods; (4) to compare the gross GIRD and the ultrasound-guide corrected GIRD in baseball players.

Design:

Baseball players who have played baseball for at least 1 year and still active in training or competition will be recruited in this study. Participant characteristics will be collected by the main assessor, including age, gender, height, weight, dominant arm, practice time, years of playing baseball. Performance/function will be assessed via a Kerlan-Jobe Orthopaedic Clinic shoulder and elbow (KJOC) self-report questionnaire. The shoulder rotation ROM, ultrasound examination including ultrasound-corrected GIRD and posterior capsular thickness and posterior shoulder tightness will also be measured. we will follow subjects for a season. Once the injury occurs, deterioration or at the end of the season, we will collect the data again.

Main outcome measures:

The shoulder rotation ROM, ultrasound examination and posterior shoulder tightness are main outcomes of the study.


Eligibility criteria: Inclusion criteria:

1. Age range from 12 to 40 years old.
2. Playing baseball for at least 1 year.
3. Still active in training or competition.
4. The frequency of training or game should be at least 3 times per week, 3 hours per time.

Exclusion criteria:

1. Subjects with shoulder pain onset due to trauma.
2. A history of shoulder fractures or dislocation.
3. Cervical radiculopathy.
4. Degenerative joint disease of the shoulder.
5. Surgical interventions on the shoulder.
6. Inflammatory arthropathy.

Primary outcomes:
measure: alteration of ultrasound-guide corrected GIRD
timeFrame: through study completion, an average of 1 year
measure: alteration of posterior capsular thickness
timeFrame: through study completion, an average of 1 year
Secondary outcomes:
measure: change of shoulder rotation ROM
timeFrame: through study completion, an average of 1 year
measure: Injury assessment and classification
timeFrame: up to 24 weeks
measure: change of posterior shoulder tightness
timeFrame: through study completion, an average of 1 year
measure: change of Kerlan-Jobe Orthopaedic Clinic Shoulder and Elbow score (KJOC)
timeFrame: through study completion, an average of 1 year
measure: days in the disable list
timeFrame: through study completion, an average of 1 year
Other outcomes:
Locations:
city: Taipei
country: Taiwan
facility: National Taiwan University Hospital
Study officials:
affiliation: National Taiwan University Hospital
name: Jing-Lan Yang, MAMS
role: PRINCIPAL_INVESTIGATOR
References:
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