Koun Yamauchi1, Mitsuishi Naofumi2, Hisashi Sumida2, Shoji Fukuta2, Hirohiko Hori2. 1. Research Center of Health, Physical Fitness and Sports, Nagoya University, Furo-cho, Chikusa-ku, Nagoya City, Aichi, 464-8601, Japan. koun_yamauchi@yahoo.co.jp. 2. Department of Orthopaedic Surgery, Hikone Municipal Hospital, Hikone City, Shiga, Japan.
Abstract
PURPOSE: The purpose of this study is to make proximal femur fracture types more predictable by considering morphological features of an acetabulum as well as of a proximal femur in the Japanese population. METHODS: A retrospective review of radiographs of the proximal femoral fractures was conducted in patients registered from 2010 to 2012, dividing into patients with femoral neck fractures; Group Neck (n = 101), and patients with femoral intertrochanteric fractures; Group IT (n = 99). Intergroup comparison was conducted: age, sex, height, weight, the ratios of femoral intertrochanteric length (IT Length), femoral neck length (Neck Length), femoral neck width (Neck Width), lateral offset length (Offset) to femoral head diameter, neck-shaft angle (N-S angle), and center-edge angle of the acetabulum (C-E angle), adjusting for age. Multiple logistic regression analysis was conducted among these parameters. RESULTS: The Group IT showed significantly older age than the Group Neck. Greater C-E angle in Group IT was observed in the patients in their 80s and 90s years of age. The Group Neck showed greater N-S angle only in the patients in their 80s years of age. In multiple logistic regression analysis, the impact of the age and the C-E angle on the fracture types was similar (odds ratio 1.08, 1.09, respectively, p < 0.01 both). CONCLUSIONS: Age, N-S angle, and C-E angle could be independent predictors for determining the proximal femur fracture types.
PURPOSE: The purpose of this study is to make proximal femur fracture types more predictable by considering morphological features of an acetabulum as well as of a proximal femur in the Japanese population. METHODS: A retrospective review of radiographs of the proximal femoral fractures was conducted in patients registered from 2010 to 2012, dividing into patients with femoral neck fractures; Group Neck (n = 101), and patients with femoral intertrochanteric fractures; Group IT (n = 99). Intergroup comparison was conducted: age, sex, height, weight, the ratios of femoral intertrochanteric length (IT Length), femoral neck length (Neck Length), femoral neck width (Neck Width), lateral offset length (Offset) to femoral head diameter, neck-shaft angle (N-S angle), and center-edge angle of the acetabulum (C-E angle), adjusting for age. Multiple logistic regression analysis was conducted among these parameters. RESULTS: The Group IT showed significantly older age than the Group Neck. Greater C-E angle in Group IT was observed in the patients in their 80s and 90s years of age. The Group Neck showed greater N-S angle only in the patients in their 80s years of age. In multiple logistic regression analysis, the impact of the age and the C-E angle on the fracture types was similar (odds ratio 1.08, 1.09, respectively, p < 0.01 both). CONCLUSIONS: Age, N-S angle, and C-E angle could be independent predictors for determining the proximal femur fracture types.
Entities:
Keywords:
Acetabulum; Femur; Japanese population; Morphology; Proximal femoral fractures
Authors: C C Glüer; S R Cummings; A Pressman; J Li; K Glüer; K G Faulkner; S Grampp; H K Genant Journal: J Bone Miner Res Date: 1994-05 Impact factor: 6.741