| Objective: To explore the magnetic resonance imaging(magnetic resonance,imaging,MRI)applied to femoral neck fracture after internal fixation with cannulated screws for early diagnosis of ONFH complicated timing and related symptoms and necrosis stage,can provide early treatm ent of ONFH in femoral neck fracture after clear indications and hip preserving scheme.Methods: Study on the Department of orthopedics of the First Affiliated Hospital of Guangxi TCM University Ruikang hospital during the period from January 1,2011 to October 30,2016 in hospitalized patients with femoral neck fracture patients with cannulated screw fixation after operation,selected in accordance with the inclusion criteria 81 cases 81 hips were retrospectively studied.Analysis of the observation of MRI and X-ray in fracture surgery from 3 to June 51 patients from 7 to D ecember,16 patients,13 clinical data of 9 patients in different periods of 20 months,more than 21 months in 5 cases of patients were evaluated with a review of femoral neck fracture by cannulated screw fixation after the operation.TCM syndrome type is divided into: vein stasis type and deficiency of liver and kidney.Type according to Garden classification,stage of necrosis were classified according to the ARCO staging of fracture control of count data using 2 test,rank data using rank sum test,the mean and standard deviation for the measurement data()said,compared with single factor analysis of variance,P < 0.05 said there was a statistically significant difference in imaging appears on the end point ONFH observation,Kaplan-Meier survival curve analysis.Results: 1.This group of patients in the postoperative diagnosis of MRI complicated with ONFH diagnosed and referral of each period were consistent(100%).MRI and X-ray to observe the occurrence of ONFH as the observation point survival curve in March-6 months,months in the difference between the-12.In different periods,MRI examination showed that the sensitivity of ONFH after femoral neck fracture was different from that of X.Among them,in 3-June this period of time,MRI and X were found in femoral neck fracture complicated with post operative ONFH signs of accuracy and sensitivity are significantly different(P < 0.05),in 7-December this period of time,Fisher exact test,MRI and X were found in femoral neck fracture complicated with post operative ONFH signs accurately and sensitivity have significant difference(P < 0.05),in 13 to 20 months and over 21 months of this period of time,Fisher exact test,MRI and X were found in femoral neck fracture complicated with postoperative ONFH signs of accuracy and sensitivity was no statistically significant difference(P > 0.05).2.With the change of time,the ARCO staging of femoral neck fracture complicated with ONFH.The discovery(ARCOI)time was 3-18 months,the average(7.992 + 5.05);(ARCOII)found time for 4-28 months,the average(15.189 + 5.987 months found;(ARCOIII,IV)the time period of 10 to 36 months(average,19.65 + 7.398 June).There was a negative correlation between the Harris score and the incidence of ONFH after femoral neck fracture.Garden analysis of femoral neck fracture complicated with ONFH3.Traumatic ONFH in different periods of TCM syndromes have differe nces.Conclusion: Patients with femoral neck fracture after 3 months of routine MRI examination that is likely to rule out the concurrent ONFH,and can accurately diagnose concurrent ONFH.In the 1 years after femo ral neck fracture,the value of MRI in the diagnosis of ONFH was much higher than that of X,and the survival rates of MRI and X were significantly different in the survival curve for the last 1 years.The higher the Harris score of hip joint after femoral neck fracture,the lower the rate of femoral head necrosis.Garden typing was associated with ONFH in patients with femoral neck fracture.According to the different period of time,TCM syndrome differentiation is helpful for the early diagnosis of bone erosion classification. |
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