TY  - JOUR
T1  - Associated Findings of Non-Traumatic Supraspinatus Tear an MRI Analysis
AU - Albtoush, Omar AU - Al-Ryalat, Nosaiba AU - , AzmyAlhadidy AU - Al-Hadidi, Fadi AU - Samara, Osama AU - Mahafza, Waleed AU - Jaradat, Saba AU - Taqatqeh, Samar AU - Alqawabah, Rula AU - Jabi, Mira Al AU - Alresheidat, Mohannad AU - Ryalat, Saif Aldeen Al 
JO  - Research Journal of Medical Sciences
VL  - 13
IS  - 5
SP  - 96
EP  - 101
PY  - 2019
DA  - 2001/08/19
SN  - 1815-9346
DO  - rjmsci.2019.96.101
UR  - https://makhillpublications.co/view-article.php?doi=rjmsci.2019.96.101
KW  - Supraspinatus
KW  -rotator cuff tear
KW  -shoulder magnetic resonance imaging
KW  -non-traumatic injuries
KW  -degenerative
KW  -associated
AB  - Supraspinatus muscle is usually the first and the most common rotator cuff muscle encountered in
traumatic and non-traumatic rotator cuff tears, representing more than 95% of rotator cuff injuries. The aim of
our study is to assess findings associated with non-traumatic supraspinatus muscle tears using magnetic
resonance imaging and its relationship to different demographic factors. Shoulder magnetic resonance imaging
were reviewed for a total of 321 patients referred from outpatient clinics aged between 18-80 years to analyze
those having non-traumatic tear of the supraspinatus tendon during the period from January 2016 till April
2018. Patients with no tear status of the supraspinatus tendon and those with history of shoulder surgery or
trauma have been excluded. A total number of 129 patients have fulfilled our inclusion criteria. There were
60 (46.5%) male and 69 (53.5%) female patients with a mean age of 55.25 (±12.96) and 49.98 (±15.4),
respectively. A difference that was not statistically significant (p = 0.107). We found a significant difference
(p = 0.002) in the frequency of complete and partial supraspinatus tears where 112 patients (86.8%) have partial
supraspinatus involvement compared with 17 patients (13.2%) with complete rupture. Several associated factors
with supraspinatus non-traumatic injury have been studied; degenerative changes of the acromioclavicular joint
showed most significant association 89.8%, joint effusion 77.5%, abnormal bone marrow signal at the superior
facet of the greater tubercle 46.5%, curved type of acromion 44.1% and subacromial-subdeltoid bursitis 53.5%.
Three patients with tear status showed osacromiale and one patient had calcific tendinitis. Among other rotator
cuff tendons the infraspinatus was the most commonly associated one representing 17.2% and long head biceps
tendon was involved in 12.4%. Non-traumatic supraspinatus tear has multiple associations that can be detected
using magnetic resonance imaging including osseous and muscular structures. Acromioclavicular joint
degenerative changes showed the most significant association. This study provides an overview analysis of
structural associations related to non-traumatic supraspinatus injury in our sample cohort. Several structural
injuries are associated with non-traumatic supraspinatus tear. Degenerative changes of acromioclavicular joint
is the most common structural association. MRI is the modality of choice in assessing supraspinatus and its
associated injuries.
ER  -