The comparison of two classifications for trochanteric femur fractures: the AO/ASIF classification and the Jensen classification. 2010

D van Embden, and S J Rhemrev, and S A G Meylaerts, and G R Roukema
Department of Surgery, Medisch Centrum Haaglanden, The Hague, The Netherlands. EmbDap@mchaaglanden.nl

This study compares the reproducibility of two classifications for trochanteric femur fractures: the Jensen classification and the AO/ASIF classification. Furthermore we evaluated the agreement on fracture stability, choice of osteosynthesis, fracture reduction and the accuracy of implant positioning. In order to calculate the inter-, and intra-observer variability 10 observers classified 50 trochanteric fractures. The inter-observer agreement of the AO/ASIF classification and the Jensen classification was kappa0.40 and kappa0.48. The kappa coefficient of the intra-observer reliability of the AO/ASIF classification was kappa0.43 and kappa0.56 for the Jensen classification. Preoperative agreement on fracture stability and type of implant showed kappa values of kappa0.39 and kappa0.65. The postoperative agreement on choice of implant, fracture reduction and position of the implant was kappa0.17, kappa0.29 and kappa0.22, respectively. Both classifications showed poor reproducibility. This study suggests that the definition of stability of trochanteric fractures remains controversial, which possibly complicates the choice of osteosynthesis.

UI MeSH Term Description Entries
D008297 Male Males
D011859 Radiography Examination of any part of the body for diagnostic purposes by means of X-RAYS or GAMMA RAYS, recording the image on a sensitized surface (such as photographic film). Radiology, Diagnostic X-Ray,Roentgenography,X-Ray, Diagnostic,Diagnostic X-Ray,Diagnostic X-Ray Radiology,X-Ray Radiology, Diagnostic,Diagnostic X Ray,Diagnostic X Ray Radiology,Diagnostic X-Rays,Radiology, Diagnostic X Ray,X Ray Radiology, Diagnostic,X Ray, Diagnostic,X-Rays, Diagnostic
D005260 Female Females
D005593 Fracture Fixation, Internal The use of internal devices (metal plates, nails, rods, etc.) to hold the position of a fracture in proper alignment. Osteosynthesis, Fracture,Fixation, Internal Fracture,Fixations, Internal Fracture,Fracture Fixations, Internal,Fracture Osteosyntheses,Fracture Osteosynthesis,Internal Fracture Fixation,Internal Fracture Fixations,Osteosyntheses, Fracture
D006620 Hip Fractures Fractures of the FEMUR HEAD; the FEMUR NECK; (FEMORAL NECK FRACTURES); the trochanters; or the inter- or subtrochanteric region. Excludes fractures of the acetabulum and fractures of the femoral shaft below the subtrochanteric region (FEMORAL FRACTURES). Femoral Trochlear Fractures,Intertrochanteric Fractures,Subtrochanteric Fractures,Trochanteric Fractures,Trochlear Fractures, Femur,Femoral Trochlear Fracture,Femur Trochlear Fracture,Femur Trochlear Fractures,Fracture, Femoral Trochlear,Fracture, Femur Trochlear,Fractures, Femoral Trochlear,Fractures, Femur Trochlear,Fractures, Hip,Fractures, Intertrochanteric,Fractures, Subtrochanteric,Fractures, Trochanteric,Trochlear Fracture, Femoral,Trochlear Fracture, Femur,Trochlear Fractures, Femoral
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000369 Aged, 80 and over Persons 80 years of age and older. Oldest Old
D015203 Reproducibility of Results The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results. Reliability and Validity,Reliability of Result,Reproducibility Of Result,Reproducibility of Finding,Validity of Result,Validity of Results,Face Validity,Reliability (Epidemiology),Reliability of Results,Reproducibility of Findings,Test-Retest Reliability,Validity (Epidemiology),Finding Reproducibilities,Finding Reproducibility,Of Result, Reproducibility,Of Results, Reproducibility,Reliabilities, Test-Retest,Reliability, Test-Retest,Result Reliabilities,Result Reliability,Result Validities,Result Validity,Result, Reproducibility Of,Results, Reproducibility Of,Test Retest Reliability,Validity and Reliability,Validity, Face
D015588 Observer Variation The failure by the observer to measure or identify a phenomenon accurately, which results in an error. Sources for this may be due to the observer's missing an abnormality, or to faulty technique resulting in incorrect test measurement, or to misinterpretation of the data. Two varieties are inter-observer variation (the amount observers vary from one another when reporting on the same material) and intra-observer variation (the amount one observer varies between observations when reporting more than once on the same material). Bias, Observer,Interobserver Variation,Intraobserver Variation,Observer Bias,Inter-Observer Variability,Inter-Observer Variation,Interobserver Variability,Intra-Observer Variability,Intra-Observer Variation,Intraobserver Variability,Inter Observer Variability,Inter Observer Variation,Inter-Observer Variabilities,Inter-Observer Variations,Interobserver Variabilities,Interobserver Variations,Intra Observer Variability,Intra Observer Variation,Intra-Observer Variabilities,Intra-Observer Variations,Intraobserver Variabilities,Intraobserver Variations,Observer Variations,Variabilities, Inter-Observer,Variabilities, Interobserver,Variabilities, Intra-Observer,Variabilities, Intraobserver,Variability, Inter-Observer,Variability, Interobserver,Variability, Intra-Observer,Variability, Intraobserver,Variation, Inter-Observer,Variation, Interobserver,Variation, Intra-Observer,Variation, Intraobserver,Variation, Observer,Variations, Inter-Observer,Variations, Interobserver,Variations, Intra-Observer,Variations, Intraobserver,Variations, Observer

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