Modelling and experimental investigation of mechanical performances of braided polyamide sutures

This work aims at predicting the braiding parameters which can lead to sutures having optimal mechanical performances for specific surgical intervention. The braiding parameters include yarn count and machine settings. Effects of yarns characteristics and machine parameters on a polyamide braid mechanical properties have also been studied. Yarn count and sheet yarn number are proven to be the most significant factors. Predictive models of the suture mechanical responses based on yarn characteristics and machine parameters have been developed and it shows very significant level. Using simultaneous contours plots, manufacturing conditions permitting to obtain optimal mechanical properties meeting the requirements of the US Pharmacopeia for the diameter and tensile strength are determined for sutures having USP number from 3-0 to 2

Modelling and experimental investigation of mechanical performances of braided polyamide sutures

186-193This work aims at predicting the braiding parameters which can lead to sutures having optimal mechanical performances for specific surgical intervention. The braiding parameters include yarn count and machine settings. Effects of yarns characteristics and machine parameters on a polyamide braid mechanical properties have also been studied. Yarn count and sheet yarn number are proven to be the most significant factors. Predictive models of the suture mechanical responses based on yarn characteristics and machine parameters have been developed and it shows very significant level. Using simultaneous contours plots, manufacturing conditions permitting to obtain optimal mechanical properties meeting the requirements of the US Pharmacopeia for the diameter and tensile strength are determined for sutures having USP number from 3-0 to 2

Upper extremity deep vein thrombosis after elbow trauma: a case report of a rare occupational accident

Upper extremity deep vein thrombosis (UEDVT) is rare, especially after benign trauma. We report the case of a 31-year-old male nurse with UEDVT after elbow trauma with no fracture. This occupational accident caused thrombosis of basilica vein extended to humeral and axillary veins, collateral circulation in the arm and the right cervical and axillary regions. Thrombophilic tests and assessment of malignant tumor were negative. Treatment by low molecular weight heparin (LMWH) then by vitamin K antagonists was conducted and evaluation by Doppler ultrasonography realized 18 months after trauma showed recanalization of basilica and humeral veins and thrombosis of axillary and subclavian veins. Management of occupational activity was prescribed including eviction of heavy loads handling and repetitive gestures of upper limbs. The Pan African Medical Journal 2016;2