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Objective To research the morphological classification of inferior angle of scapula based on CT 3D reconstruction and its clinical significance. Methods A total of 290 scapular bones data were collected from People's Hospital of Lu Xian County and measured based on CT 3D reconstruction. The scapular bones images were reconstructed by CT 3D technique. Reference points; g was the inferior scapular angle, n was the inferior glenotubular nodule, m was the intersection of the scapular ganglion and the medial edge of the scapula, k was the upper scapular angle, r was the notch of the scapular glenoid, h was the intersection of point g to mr. The parameters of inferior angles of 290 scapular bones, including the thickness of point g (the thickest part of inferior angle of the scapula), the length of the line gn, line gm, and line gh, and the angle of ∠ ngm, ∠ gmk (the projection of the scapular coronal plane), and ∠ gmk' (the projection of the scapular sagittal plane) were observed and measured by CT 3D technique. Results Under the CT three-dimensional reconstruction, the inferior angle of scapula was classified into three types; accessory angle-type ( 175, 60. 34%), U-type ( 81, 27. 93%) and V-type (34, 11. 73%). In addition, there was a significant difference between the auxiliary angle type and the V type on the thickest part of the g point and gn (P<0.05); U-type and V-type with paragonai gm-significant difference (P<0.05); There was a significant difference between the auxiliary angle type and the U shape on gh (P<0.05); there was a significant difference between the auxiliary angle type and the U shape on ∠ gmk' (P<0.05). There was a significant difference in the inferior angle of the bilateral scapula on mngm (P<0.05). Conclusion Based on the result of CT three-dimensional reconstruction, the inferior angle of scapulae have three anatomical types, with the accessory angle-type as the main type, and the morphology and classification of it are of certain clinical implication.
RESUMO
BACKGROUND: Compared with conventional total hip replacement, minimally invasive total hip replacement has some advantages, such as small incision, less blood loss, light pain, low incidence of dislocation, and short rehabilitation period. However, changes in post-displacement stress and in vivo metabolism-related serological indicators have not been systematically reported. OBJECTIVE: To observe cytokines and curative effect before and after minimally invasive total hip replacement and conventional total hip replacement. METHODS: We selected 178 patients who underwent unilateral total hip replacement in the Department of Bone and Joint Surgery, Affiliated Hospital of Southwest Medical University from January 2015 to January 2017. They were randomly divided into observation group (89 cases) and control group (89 cases). The control group was treated by total hip arthroplasty through the standard invasive posterolateral approach. The observation group was treated by total hip arthroplasty through the minimally invasive anterolateral approach. The related operation indexes were recorded in two groups. Harris score was analyzed preoperatively, 1, 3, 6 and 12 months after surgery. The serum levels of interleukin (IL)-1, IL-6, IL-10, tumor necrosis factor (TNF)-α and procalcitonin were measured by enzyme linked immunosorbent assay preoperatively, 1 and 3 days after surgery. RESULTS AND CONCLUSION: (1) All patients were followed up for 12 months. (2) Age, sex, body mass index and joint replacement site were not significantly different in both groups (P > 0.05). (3) The operation time, hospital stay and incision length in the observation group were shorter than those in the control group. The blood loss, blood transfusion, and postoperative drainage in the observation group were less than those in the control group (P < 0.05). (4) Harris Score increased at various time points after replacement in both groups. Harris score was significantly higher in the observation group than in the control group at 1 and 3 months after surgery (P < 0.05). (5) The serum levels of IL-1, IL-6, IL-10, TNF-α and procalcitonin in the observation group were significantly lower than in the control group 1 and 3 days after surgery. (6) These findings confirm that minimally invasive total hip arthroplasty has better curative effect than conventional total hip arthroplasty, and can reduce related cytokine levels, and is more conducive to the rapid recovery of lower extremity motor function.