Did MRI Appearance of Supraspinatus Muscle Atrophy Changes After Repair of All Kind of Rotator Cuff Tear?

There are two purpose of this study, first is to find whether arthroscopic rotator cuff repair is changing the appearance of supraspinatus muscle atrophy in each and every patient. Second, is to find how much approximate change one can expect depending on age and tendon retraction

Study Overview

• Status: Unknown
• Conditions: Rotator Cuff Tear
• Intervention / Treatment: Procedure: arthroscopic rotator cuff repair

Detailed Description

Retrospective review of 209 patients having both preoperative and immediate postoperative MRI done. Both preoperative and immediate postoperative occupancy ratio calculated and from that change in occupancy ratio calculated for each and every patient. Patient were divided in two major group according to age that is <60 years and >60 years and 3 subgroups of mild, moderate and severe depending on preoperative supraspinatus tendon retraction on coronal view of MRI. Postoperative occupation ratio was compared with preoperative occupation ratio within the subgroups and change in occupation ratio was used for comparison between the subgroup. Change in occupation ratio was also used for comparison between 2 major groups

• Study Type: Observational
• Enrollment (Actual): 209

Contacts and Locations

Study Locations

• Korea, Republic of
  • Seoul
    • Yeongdeungpo-gu, Seoul, Korea, Republic of
      • Chungmu General Hopsital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

209 patients with degenerative rotator cuff tear who underwent single-row arthroscopic rotator cuff repair between March 2012 and April 2015 in CM hospital

Description

Inclusion Criteria:

1. Patients with degenerative rotator cuff tear who underwent single-row arthroscopic rotator cuff repair in our hospital.
2. Patients with preoperative MRI and postoperative MRI within 1 week of surgery in our hospital.
3. Patients with minimum grade 1 supraspinatus atrophy in preoperative MRI.

Exclusion Criteria:

1. Patients with preoperative MRI from outside hospital.
2. Patients with isolated subscapularis tear.
3. Patients with previous operation on the same shoulder joint.
4. Patients with MRI images that were not usable due to poor quality or absence of appropriate Y-view.

Study Plan

How is the study designed?

Number of groups / cohorts

3

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
Mild Subgroup; patients with supraspinatus tendon retracted upto medial 1/3rd of humerus head and arthroscopic rotator cuff repair done by single row.	Procedure: arthroscopic rotator cuff repair; arthroscopic rotator cuff repair done in all patients to check whether, surgery itself changes the appearance of muscle atrophy in the supraspinatus in all patients irrespective of size of preoperative tendon retraction
Moderate Subgroup; patients with supraspinatus tendon retracted between medial 1/3rd of humerus head and glenoid,and arthroscopic rotator cuff repair done by single row.	Procedure: arthroscopic rotator cuff repair; arthroscopic rotator cuff repair done in all patients to check whether, surgery itself changes the appearance of muscle atrophy in the supraspinatus in all patients irrespective of size of preoperative tendon retraction
Severe subgroup; patients with supraspinatus tendon retracted beyond glenoid and arthroscopic rotator cuff repair done by single row	Procedure: arthroscopic rotator cuff repair; arthroscopic rotator cuff repair done in all patients to check whether, surgery itself changes the appearance of muscle atrophy in the supraspinatus in all patients irrespective of size of preoperative tendon retraction

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
change in supraspinatus muscle atrophy	Supraspinatus muscle atrophy was measured and evaluated according to the Thomazeau classification. Stage 1: slight atrophy occupation ratio (1.00-0.60), Stage 2: moderate atrophy occupation ratio (0.60-0.40), Stage 3: Severe atrophy occupation ratio(<0.40). Both preoperative and immediate postoperative occupancy ratio calculated and from that change in occupancy ratio calculated for each and every patient.Postoperative occupation ratio was compared with preoperative occupation ratio within the groups and change in occupation ratio was used for comparison between the groups.	within 1 week after surgery

Collaborators and Investigators

• Sponsor: CM Chungmu Hospital
• Investigators: Study Chair: sang-Hoon Lhee, MD PhD, President, CM general Hospital; Principal Investigator: Anant kumar Singh, arthroscopy fellow, CM general Hospital

Study record dates

Study Major Dates

• Study Start: December 1, 2015
• Primary Completion (Anticipated): January 1, 2016
• Study Completion (Anticipated): January 1, 2016

Study Registration Dates

• First Submitted: December 3, 2015
• First Submitted That Met QC Criteria: December 10, 2015
• First Posted (Estimate): December 11, 2015

Study Record Updates

• Last Update Posted (Estimate): December 11, 2015
• Last Update Submitted That Met QC Criteria: December 10, 2015
• Last Verified: December 1, 2015

More Information

Terms related to this study

• Keywords: occupation ratio; pseudoatrophy
• Additional Relevant MeSH Terms: Nervous System Diseases; Neurologic Manifestations; Wounds and Injuries; Rupture; Shoulder Injuries; Tendon Injuries; Neuromuscular Manifestations; Pathological Conditions, Anatomical; Rotator Cuff Injuries; Muscular Atrophy; Atrophy
• Other Study ID Numbers: CMH-2015-02

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO
• IPD Plan Description: Sharing of data on the website is against the policy of IRB Korea