ObjectiveTo analyze the associated risk factors of hidden blood loss in the internal fixation of intertrochanteric fracture. MethodsA retrospective analysis was made on the clinical data of 317 cases of intertrochanteric fractures which were treated by internal fixation between January 1993 and December 2008. There were 154 males and 163 females with an average disease duration of 4.58 days (range, 7 hours to 33 days); the age was (69.86±15.42) years; the average height was 1.64 m (range, 1.50-1.84 m);and the average weight was 62.26 kg (range, 39-85 kg). Of them, intramedullary fixation was used in 203 patients and extramedullary fixation in 114 patients. The operation time was (61.99±18.25) minutes. The red blood cell transfusion was given to 84 patients, and the transfusion amount was 200-1 000 mL. The drainage volume was 0-750 mL (mean, 61.85 mL). Hidden blood loss was calculated through change of hematocrit level before and after operation. The multiple linear regression was performed to analyse the risk factors of hidden blood loss. ResultsThe total blood loss was (918.60±204.44) mL, the hidden blood loss was (797.77±192.58) mL, and intraoperative visible blood loss was (257.32±271.24) mL. Single factor analysis showed hidden blood loss was significantly higher in variables as follows:gender, age, injury cause, fracture type, American anesthesiologists grading, anesthesia mode, hypertension, diabetes, disease duration, operation time, intraoperative transfusion of red blood cells, and fixation type. Multiple linear regression showed age, fracture type, anesthesia mode, and fixation type were significant risk factors. ConclusionThe risk factors of hidden blood loss are advanced age (>60 years), unstable fracture, general anesthesia, and imtramedullary fixation. Especially in elder patients with unstable fracture treated by intramedullary fixation under general anesthesia, hidden blood loss is more significant.
ObjectiveTo explore the impact of perioperative average blood-glucose level on the prognosis of patients with hip fracture and diabetes mellitus. MethodsA retrospective analysis was made on the clinical data of 244 patients with hip fracture and diabetes mellitus who accorded with the inclusion criteria between September 2009 and September 2012.Of 244 patients,125 patients with poorly controlled fasting blood-glucose (average fasting blood-glucose level >7.8 mmol/L) were assigned in group A,and 119 patients with well controlled fasting blood-glucose (average fasting blood-glucose level ≤7.8 mmol/L) were assigned in group B according to "China guideline for type 2 diabetes" criteria.There was no significant difference in gender,age,disease duration of diabetes mellitus,serum albumin,fracture type and disease duration,surgical procedure,anaesthesia,and complications between 2 groups (P>0.05).Group A had a higher hemoglobin level and fewer patients who can do some outdoor activities than group B (t=-2.353,P=0.020;χ2=4.333,P=0.037).The hospitalization time,days to await surgery,stitch removal time,the postoperative complication rate,the mortality at 1 month and 1 year after operation,and ambulatory ability at 1 year after operation were compared between the 2 groups. ResultsA total of 223 patients (114 in group A and 109 in group B) were followed up 12-15 months (mean,13.5 months).The days to await surgery of group A were significantly more than those of group B (t=-2.743,P=0.007),but no significant difference was found in hospitalization time and stitch removal time between 2 groups (P>0.05).The postoperative complication rate of group A (19.2%,24/125) was significantly higher than that of group B (8.4%,10/119)(χ2=5.926,P=0.015).Group A had a higher mortality at 1 month after operation than group B (6.1% vs.0)(χ2=5.038,P=0.025),but no significant difference was shown at 1 year after operation between groups A and B (8.8% vs.4.6%)(χ2=1.555,P=0.212).At 1 year after operation in patients who can do some outdoor activities,the proportions of patients who turned to do some indoor activities was 19.2%(15/78) in the group A and 13.5%(12/89) in group B,showing no significant difference (χ2=1.013,P=0.314). ConclusionPoorly controlled perioperative fasting blood-glucose may lead undesirable influence on the prognosis of patients with hip fracture and diabetes mellitus.In order to reduce the complication rate and other accidents,the fasting blood-glucose level should be controlled to 7.8mmol/L or less.