PURPOSE: The aim of the study was to analyse @entity2916 ( @entity2916 ) micro-vascularization in the context of rotator cuff tear and to identify factors that could affect the rate and distribution of micro-vessels. METHODS: Eighty-seven @entity1 with supraspinatus and/or @entity924 were included in a prospective study. Mean age at surgery was 58  years (41-78) and clinical symptoms were lasting from an average of 20  months before surgery. A bone core of 1-cm depth was obtained from the @entity2916 during rotator cuff repair at two localizations, medial and lateral within tuberosity. Micro-vascularization was then analysed with an immunohistochemistry technique based on @entity2280 antigen tracking endothelial cells at two levels of depth for each sample (more and less than 5  mm). Epidemiologic and pathologic data were correlated with the rate of micro-vascularization measured. RESULTS: Median rate of @entity2916 's micro-vascularization was 9.8  %, which ranged from 0.13  % to 33.4  %. This rate decreased with preoperative steroid injection (7.4  % vs 11.2) and with localization close to the cartilage of the humeral head (8.7  % vs 11.9  %). However, it remains almost homogenous along the depth's core. Moreover, no significant correlation was found regarding age at surgery, gender, context of previous @entity130 , smoking habits, duration of symptoms, and specific data regarding the tendon tear. CONCLUSIONS: This study highlighted the variability of @entity2916 's micro-vascularization in case of rotator cuff tear. A greater rate was observed at the lateral part of the footprint, whereas medical history of steroid injection has a negative influence on micro-vascularization.

Variations of the micro-vascularization of the greater tuberosity in XXXX with rotator cuff tears.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity924 :: ('MESH:D052256', 'Disease') :: ['infraspinatus tendon tears'] @entity2916 :: ('MESH:D014402', 'Disease') :: ["greater tuberosity's", 'GT'] @entity2280 :: ('947', 'Gene') :: ['CD34'] @entity130 :: ('MESH:D014947', 'Disease') :: ['trauma']
@entity1 :: (9606,Species) :: ['patients']
