老年股骨转子间骨折围修复期隐性失血量与内固定植入物及性别的关系

Relationship of hidden blood loss,implants and sex during the perioperative treatment of elderly intertrochanteric fracture

BACKGROUND: With the continuous renewal and development of clinical repair techniques, the intraoperatie  blood loss has been greatly reduced in the treatment of intertrochanteric fracture; however, no matter what kind of repair methods should be adopted, there are still a large amount of perioperative hidden blood loss, however, there are few clinical reports for the reasons and related factors. OBJECTIVE: To study the correlation of perioperative hidden blood loss with gender and internal fixation methods in the surgery of elderly femoral intertrochanteric fractures．METHODS: Totally 121 patients with elderly femoral intertrochanteric fractures who received the treatment at Department of Orthopedics, Nanyang City Center Hospital from March 2010 to June 2013 were divided into two groups according to the condition and treatment wishes of patients, and were respectively treated with dynamic hip screw and proximal femoral anti-rotation intramedullary nail internal fixation. The preoperative hidden blood loss, postoperative hidden blood loss, the total hidden blood loss, dominant blood loss and total blood loss of patients in these two groups were compared. The multiple linear regression analysis on the correlation of perioperative hidden blood loss with gender and internal fixation methods was conducted.RESULTS AND CONCLUSION: There was no significant difference in the preoperative hidden blood loss between these two groups (P > 0.05). The total blood loss, postoperative hidden blood loss and total hidden blood loss in the proximal femoral anti-rotation intramedullary nail group were significantly higher than those in the dynamic hip screw group (P < 0.05), and the dominant blood loss was significantly lower than that in the dynamic hip screw group (P < 0.05). There were significant differences in the preoperative, postoperative hidden blood loss and total hidden blood loss between males and females (P < 0.05), and above indexes in males were significantly lower than in females. The multiple linear regression analysis showed that gender and internal fixation methods were correlated with hidden blood loss (P < 0.05). These results suggest that the perioperative hidden blood loss in surgery for elderly femoral intertrochanteric fractures is closely related to gender and above indexes in internal fixation methods. The perioperative hidden blood loss of male patients is less than that of female patients, and the patients treated with proximal femoral anti-rotation intramedullary nail fixation have more hidden blood loss than dynamic hip screw fixation.