An interventional study of CT scan of the shoulders in Osteoarthritis of Shoulder, sponsored by Milton S. Hershey Medical Center. Terminated at 1 site in United States. Open to participants aged 45 Years and older. Per ClinicalTrials.gov, last updated 2026-10-20.
Sponsored by Milton S. Hershey Medical Center · Not applicable, Interventional, and Treatment
low enrollment
The purpose of this study is to examine the rotator cuff muscles in your shoulder at one and two year post total shoulder replacement surgery.
843 studies on the registry are indexed under Arthritis; 118 are open to participants now.
This study's enrollment of 3 is below the median of 97 across 599 interventional studies indexed under Arthritis.
Browse Arthritis studies →Milton S. Hershey Medical Center is the lead sponsor of 492 studies on the registry; 60 are open to participants now.
Of its 58 completed or terminated interventional studies of FDA-regulated products, 46 (79%) have results posted.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraindication
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Subjects will be assessed for the outcome measures at one year and two year timepoints post total shoulder replacement surgery
Diagnostic Test: CT scan of the shoulders
studies of both operative and nonoperative shoulders
Also known as: EMG of the shoulders
Active Nerve Denervation
EMG examination will be performed by a single neurologist. The EMG Examination will be performed on the muscles (upper subscapularis, supraspinatus, infraspinatus, teres minor and rhomboid) to look for any presence or absence of active denervation. Presence indicated by increased insertional activity, fibrillation potential, positive sharp waves and/or with fasciculations in both operated and unoperated shoulders.
Time frame: one year post surgery
Active Nerve Denervation
EMG examination will be performed by a single neurologist. The EMG Examination will be performed on the muscles (upper subscapularis, supraspinatus, infraspinatus, teres minor and rhomboid) to look for any presence or absence of active denervation. Presence indicated by increased insertional activity, fibrillation potential, positive sharp waves and/or with fasciculations in both operated and unoperated shoulders.
Time frame: two year post surgery
Neuropathic Changes_amplitude
The EMG Examination will be performed on the muscles (upper subscapularis, supraspinatus, infraspinatus, teres minor and rhomboid) to look for the presence or absence of neuropathic changes assessed by examining unit morphology amplitude: measured in millivolts, in both operated and unoperated shoulders.
Time frame: one year post surgery
Neuropathic Changes_amplitude
The EMG Examination will be performed on the muscles (upper subscapularis, supraspinatus, infraspinatus, teres minor and rhomboid) to look for the presence or absence of neuropathic changes assessed by examining unit morphology amplitude: measured in millivolts, in both operated and unoperated shoulders.
Time frame: two year post surgery
Neuropathic Changes_recruitment pattern
The EMG Examination will be performed on the muscles (upper subscapularis, supraspinatus, infraspinatus, teres minor and rhomboid) to look for the presence or absence of neuropathic changes assessed by examining unit morphology: phases with recruitment pattern measured as 1-2 or 3-4 units in both operated and unoperated shoulders.
Time frame: one year post surgery
Neuropathic Changes_recruitment pattern
The EMG Examination will be performed on the muscles (upper subscapularis, supraspinatus, infraspinatus, teres minor and rhomboid) to look for the presence or absence of neuropathic changes assessed by examining unit morphology: phases with recruitment pattern measured as 1-2 or 3-4 units in both operated and unoperated shoulders.
Time frame: two year post surgery
Neuropathic Changes_duration
The EMG Examination will be performed on the muscles in both operated and unoperated shoulders to look for the presence or absence of neuropathic changes assessed by examining unit morphology: duration measured in milliseconds.
Time frame: one year post surgery
Neuropathic Changes_duration
The EMG Examination will be performed on the muscles in both operated and unoperated shoulders to look for the presence or absence of neuropathic changes assessed by examining unit morphology: duration measured in milliseconds.
Time frame: two year post surgery
Total number of Muscles affected with active denervation
The EMG Examination will be performed to look for abnormal changes as indicated by presence of active nerve denervation across the 5 muscles (upper subscapularis, Infraspinatus, Supraspinatus, teres minor, Rhomboid) in both operated and unoperated shoulders.
Time frame: one year post surgery
Total number of Muscles affected with active denervation
The EMG Examination will be performed to look for abnormal changes as indicated by presence of active nerve denervation across the 5 muscles (upper subscapularis, Infraspinatus, Supraspinatus, teres minor, Rhomboid) in both operated and unoperated shoulders.
Time frame: two year post surgery
Total number of muscles affected with neuropathic changes
The EMG Examination will be performed to look for neuropathic changes as indicated by amplitude, recruitment pattern and duration across the 5 muscles (upper subscapularis, Infraspinatus, Supraspinatus, teres minor, Rhomboid) in both operated and unoperated shoulders.
Time frame: one year post surgery
Total number of muscles affected with neuropathic changes
The EMG Examination will be performed to look for neuropathic changes as indicated by amplitude, recruitment pattern and duration across the 5 muscles (upper subscapularis, Infraspinatus, Supraspinatus, teres minor, Rhomboid) in both operated and unoperated shoulders.
Time frame: two year post surgery
Tear in Rotator Cuff Muscles in both shoulders
CT Scan to evaluate rotator cuff muscles for presence or absence of any tear in operative and non-operative. If tear is present - partial or full. If full, small or (\<1cm), or medium (1-3 cm\_ or Large (3-5 cm) or massive (\>5cm), tendon involved (supraspinatus or infraspinatus or subscapularis).
Time frame: one year post surgery
Tear in Rotator Cuff Muscles in both shoulders
CT Scan to evaluate rotator cuff muscles for presence or absence of any tear in operative and non-operative. If tear is present - partial or full. If full, small or (\<1cm), or medium (1-3 cm\_ or Large (3-5 cm) or massive (\>5cm), tendon involved (supraspinatus or infraspinatus or subscapularis).
Time frame: two year post surgery
Fatty degeneration in Rotator Cuff Muscles in both shoulders using Goutallier Classification
CT scan to evaluate atrophy in Rotator Cuff Muscles using the Goutallier Classification System. The Classification system measures fatty tissue infiltration and has five stages, ranging from Stage 0 (normal muscle) to Stage 4 (more fat than muscle) in upper subscapularis, infraspinatus, supraspinatus, teres minor and rhomboid in both operated and unoperated shoulder.
Time frame: one year post surgery
Fatty degeneration in Rotator Cuff Muscles in both shoulders using Goutallier Classification
CT scan to evaluate atrophy in Rotator Cuff Muscles using the Goutallier Classification System. The Classification system measures fatty tissue infiltration and has five stages, ranging from Stage 0 (normal muscle) to Stage 4 (more fat than muscle) in upper subscapularis, infraspinatus, supraspinatus, teres minor and rhomboid in both operated and unoperated shoulder.
Time frame: two year post surgery
Fatty atrophy in Rotator Cuff Muscles in both shoulders
CT Scan to evaluate fatty degeneration in Rotator Cuff Muscles - present or absent in upper subscapularis, infraspinatus, supraspinatus, teres minor and rhomboid muscles in both operated and unoperated shoulders.
Time frame: one year post surgery
Fatty atrophy in Rotator Cuff Muscles in both shoulders
CT Scan to evaluate fatty degeneration in Rotator Cuff Muscles - present or absent in upper subscapularis, infraspinatus, supraspinatus, teres minor and rhomboid muscles in both operated and unoperated shoulders.
Time frame: two year post surgery
Forward Elevation for Active Range of Motion
A physical exam will be performed on both shoulders to asses forward elevation on active range of motion using a Goniometer.
Time frame: one year post surgery
Forward Elevation for Active Range of Motion
A physical exam will be performed on both shoulders to asses forward elevation on active range of motion using a Goniometer.
Time frame: two year post surgery
Forward Elevation for Passive Range of Motion
A physical exam will be performed on both shoulders to asses forward elevation for passive range of motion using a Goniometer.
Time frame: one year post surgery
Forward Elevation for Passive Range of Motion
A physical exam will be performed on both shoulders to asses forward elevation for passive range of motion using a Goniometer.
Time frame: two year post surgery
External Rotation (side) for Passive Range of Motion
A physical exam will be performed on both shoulders to asses external rotation (side) for passive range of motion using a Goniometer.
Time frame: one year post surgery
External Rotation (side) for Passive Range of Motion
A physical exam will be performed on both shoulders to asses external rotation (side) for passive range of motion using a Goniometer.
Time frame: two year post surgery
External Rotation (side) for Active Range of Motion
A physical exam will be performed on both shoulders to asses external rotation (side) for active range of motion using a Goniometer.
Time frame: one year post surgery
External Rotation (side) for Active Range of Motion
A physical exam will be performed on both shoulders to asses external rotation (side) for active range of motion using a Goniometer.
Time frame: two year post surgery
Range of Motion in both shoulders_ Internal Rotation
Physical exam to see range of motion includes: Internal Rotation measured as T5 or T7 or TL or Belt or Butt or Side
Time frame: one year post surgery
Range of Motion in both shoulders_ Internal Rotation
Physical exam to see range of motion includes: Internal Rotation measured as T5 or T7 or TL or Belt or Butt or Side
Time frame: two year post surgery
Measurement of strength in both shoulders_Jobe's test
Measurement of Strength: measured by Isometer in Kg
Time frame: one year post surgery
Measurement of strength in both shoulders_Jobe's test
Measurement of Strength: measured by Isometer in Kg
Time frame: two year post surgery
Measurement of strength in both shoulders_External Rotation (at side)
Measurement of Strength: External Rotation (at side) measured by Isometer in Kg
Time frame: one year post surgery
Measurement of strength in both shoulders_External Rotation (at side)
Measurement of Strength: External Rotation (at side) measured by Isometer in Kg
Time frame: two year post surgery
Measurement of strength in both shoulders_Belly Press
Measurement of Strength:Belly Press measured as Positive/Negative/Unable
Time frame: one year post surgery
Measurement of strength in both shoulders_Belly Press
Measurement of Strength:Belly Press measured as Positive/Negative/Unable
Time frame: two year post surgery
Measurement of strength in both shoulders_Lift off Test
Measurement of Strength: Lift off Test as Positive/Negative/Unable
Time frame: one year post surgery
Measurement of strength in both shoulders_Lift off Test
Measurement of Strength: Lift off Test as Positive/Negative/Unable
Time frame: two year post surgery
Plan to share: No
No publications or documents are linked to this record.
Ran from May 2024 to primary completion in Oct 2024, 5 months.
Since we started tracking on Sep 25, 2026, the dates moved once, on Oct 20, 2026: primary completion Sep 2028 → Oct 2024 and completion Dec 2028 → Oct 2024.
Earlier changes are on the record history on ClinicalTrials.gov ↗
How these figures are worked out, and which studies are left out of them.
low enrollment
low enrollment
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
This study is terminated, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.
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