Biomaterial Database

MR imaging of rotator cuff impingement: correlation with full-thickness rotator cuff tear. 1996

J D Chen, and Y F Jim, and C Y Chang

Department of Radiology, Veterans General Hospital-Taipei, Taiwan, R.O.C.

BACKGROUND Rotator cuff tears usually derive from shoulder impingement, and need surgical treatment. This study is to verify the Magnetic Resonance Image (MRI) findings of rotator cuff impingement which are related to full-thickness rotate cuff tear (FTRCT). METHODS Totally 68 patients with shoulder impingement syndrome were studied, including 39 shoulders with surgically-proven FTRCT, and 29 shoulders without FTRCT. MRI findings of shoulder impingement were evaluated for peribursal fat plane, subacromial distance, acromion shape, subacromioclavicular space, irregularity of coracoacromial ligament and presence of subacromial spurs. The correlation with FTRCT was also determined. RESULTS Peribursal fat plane obliteration (p = 0.0001), hook-shaped acromion (p = 0.0148), subacromioclavicular indentation (p = 0.0004), and decreased subacromial distance (p = 0.0005) showed significant correlation with FTRCT; however, subacromial spurs (p = 0.6238) and thickened irregular coracoacromial ligament (p = 0.1611) showed poor correlation. CONCLUSIONS Specific MRI findings of rotator cuff impingement are fairly reliable and helpful for discrimination of FTRCT from non-FTRCT cases, and can be used preoperatively and noninvasively to determine the necessity of surgical repair of rotator cuff.

UI	MeSH Term	Description	Entries
D008279	Magnetic Resonance Imaging	Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques.	Chemical Shift Imaging,MR Tomography,MRI Scans,MRI, Functional,Magnetic Resonance Image,Magnetic Resonance Imaging, Functional,Magnetization Transfer Contrast Imaging,NMR Imaging,NMR Tomography,Tomography, NMR,Tomography, Proton Spin,fMRI,Functional Magnetic Resonance Imaging,Imaging, Chemical Shift,Proton Spin Tomography,Spin Echo Imaging,Steady-State Free Precession MRI,Tomography, MR,Zeugmatography,Chemical Shift Imagings,Echo Imaging, Spin,Echo Imagings, Spin,Functional MRI,Functional MRIs,Image, Magnetic Resonance,Imaging, Magnetic Resonance,Imaging, NMR,Imaging, Spin Echo,Imagings, Chemical Shift,Imagings, Spin Echo,MRI Scan,MRIs, Functional,Magnetic Resonance Images,Resonance Image, Magnetic,Scan, MRI,Scans, MRI,Shift Imaging, Chemical,Shift Imagings, Chemical,Spin Echo Imagings,Steady State Free Precession MRI
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D000368	Aged	A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available.	Elderly
D000369	Aged, 80 and over	Persons 80 years of age and older.	Oldest Old
D012782	Shoulder	Part of the body in humans and primates where the arms connect to the trunk. The shoulder has five joints; ACROMIOCLAVICULAR joint, CORACOCLAVICULAR joint, GLENOHUMERAL joint, scapulathoracic joint, and STERNOCLAVICULAR joint.	Shoulders
D019534	Shoulder Impingement Syndrome	Compression of the ROTATOR CUFF tendons and subacromial bursa between the HUMERAL HEAD and the ACROMION of the SCAPULA. This condition is associated with subacromial BURSITIS, as well as rotator cuff (largely supraspinatus) and bicipital tendon INFLAMMATION.	Shoulder Impingement,Subacromial Impingement Syndrome,Coracohumeral Impingement,Coracohumeral Impingement Syndrome,Coracoid Impingement Syndrome,Internal Impingement Syndrome,Outlet Impingement,Outlet Impingement Syndrome,Posterosuperior Glenoid Impingement,Rotator Cuff Impingement,Rotator Cuff Impingement Syndrome,Coracohumeral Impingement Syndromes,Coracohumeral Impingements,Coracoid Impingement Syndromes,Impingement, Coracohumeral,Impingement, Posterosuperior Glenoid,Impingement, Rotator Cuff,Impingement, Shoulder,Impingements, Posterosuperior Glenoid,Impingements, Rotator Cuff,Internal Impingement Syndromes,Outlet Impingement Syndromes,Outlet Impingements,Posterosuperior Glenoid Impingements,Rotator Cuff Impingements,Shoulder Impingement Syndromes,Shoulder Impingements,Subacromial Impingement Syndromes