대퇴 경부 골절에서의 stress와 strain에 관한 연구

이순혁,박상원,이홍건 고려대학교 의과대학 1990 고려대 의대 잡지 Vol.27 No.1

To study change of stress on the femoral neck after internal fixation of femoral neck fractures, comparison of strain on the fernoral neck between before and after femoral neck osteotomy was performed. The author used fourteen embalmed femora, two as control group and twelve as experimental group, which was further divided into two groups by difference of fixation method, and measured strains during loading along the weight-bearing axis with Instron. In two femora of the control group, five strain-gauges were bonded on five spots around the femoral neck and strains on five spots were measured. In twelve femora of the experimental group, two strain-gauges were bonded on selected two spots, each showed the highest amount of compressive or tensile strain according to experimental results of the control group among five spots, and strains were measured during loading. Then twelve femora in the experimental group, once loaded, were fixed with Knowles pins(six femora with three Knowles pins longitudinally and six femora with four Knowles pins quadriangularly) after femoral neck osteotomy and were loaded until internal fixation of femoral neck osteotomy failed(maximal loading force), while measuring strains on two spots of femoral neck. The ratio of strain on the same spot of the same femur between after and before femoral neck osteotomy was calculated. The author also observed the relationship between maximal loading force, difference of fixation method of Knowles pins and the ratio of strain between after and before femoral neck osteotomy. The results obtained are as follows : 1. In the femora of normal state, the tensile strain is higher on the antero-superior neck and the compressive strain on the poster on inferior neck of the femur. The strain on the mid-posterior neck was minimal. 2. In the twelve femora before femoral neck osteotomy, the ratio between the tensile strain on the antero-superior neck and the compressive strain on the postero-inferior neck in the same femur ranged from 29% to 92%, the mean value being 62±20.2%. 3. The ratio of the compressive strain on the cortex of the postero-inferior neck of the femur between after fixation of osteotomy and before osteotomy ranged from 47% to 210%, the mean value being 124±90.9% in six femora with three Knowles pins longitudinally and 128±70.6 % in the femora with four Knowles pins quadriangularly. 4. The ratio of the tensile strain on the cortex of the antero superior neck of seven femora, excluding five femora of disproportionally developed tensile strain, between after fixation of osteotomy and before osteotomy ranged from 25% to 80%. 5. The mean value of maximal loading force was 260±45.9Kp in six femora fixed with three Knowles pins longitudinally and 265±41.0Kp in six femora fixed with four Knowles pins quadriangularly. 6. The ratio of the compressive strain on the cortex of the posteroinferior neck of the femur between after fixation of osteotomy with and before osteotomy had close relationship with the maximal loading force. The maximal loading force had the mean value of 303±12.5Kp in six femora with the ratio less than 100%(47%70%) and the mean value of 221±16.9Kp in six femora with the ratio more than 100% (180%210%).

고령의 환자에서 발생한 대퇴 경부 부전골절의 임상결과 및 방사선학적 특징

예희욱 ( Hee-uk Ye ),이경재 ( Kyung-jae Lee ),민병우 ( Byung-woo Min ),임경환 ( Kyung-hwan Lim ),김범수 ( Beom-soo Kim ),김영훈 ( Young-hoon Kim ) 대한골절학회 2021 대한골절학회지 Vol.34 No.1

목적: 고령 환자에서 외상력 없이 발생하는 대퇴 경부 부전골절은 진단과 치료에 어려움이 있어 골절을 조기에 의심하는 것이 강조되고 있다. 저자들은 대퇴 경부 부전골절의 임상결과와 대퇴골 근위부의 구조 및 형태를 외상성 대퇴 경부 골절과 비교하여 특징을 찾고자 하였다. 대상 및 방법: 2010년 12월부터 2019년 12월까지 70세 이상 환자에서 발생한 12예의 대퇴 경부 부전골절 환자(제1군)와 외상성 대퇴 경부 골절 환자 50예(제2군)를 대상으로 하였다. 인구학적 정보와 단순 방사선 검사에서 계측한 피질 두께, 대퇴 골두 지름, 대퇴 경부 폭, 대퇴골 전자부 폭, 근위 대퇴골간부의 폭, 대퇴골 경간각 및 고관절 축 길이를 비교하였다. 결과: 12예 중 7예가 비전위 골절이었으며, 증상 발생 후 골절의 진단까지 평균 19.2일이 소요되었다. 방사선 사진에서는 대퇴 경부 내측 피질골의 두께가 1군에서 3.16 mm, 2군에서 4.11 mm로 두 군 간 유의한 차이를 보였다(p=0.004). 결론: 대퇴 경부 부전골절은 골절의 특성상 진단이 지연되는 경우가 많았다. 단순 방사선 사진에서 측정한 대퇴 경부 내측피질골의 두께는 자세한 병력청취와 함께 고려한다면 대퇴경부 부전골절을 조기에 의심하는 데 도움이 될 것으로 생각된다. Purpose: In elderly patients, femoral neck insufficiency fractures that occur without a history of trauma are difficult to diagnose and treat, so it is emphasized that early suspicion of fractures and additional diagnostic tests are conducted. Materials and Methods: Between December 2010 to December 2019, 12 femoral neck insufficiency fractures (group 1) were evaluated by comparing them with 50 traumatic femoral neck fractures of a similar age. Along with demographic data, neck cortical thickness, shaft cortical thickness, head diameter, neck width, trochanter width, shaft width, neck-shaft angle, hip axis length, femoral neck index on the simple radiographic image were compared. Results: Seven of the 12 cases were non-displaced fractures, and it took an average of 19.2 days to diagnose the fracture after the symptoms occurred. The height was smaller than the control group at 149.1 cm in group 1 and 157.2 cm in group 2 (p<0.001). The cortical thickness of the medial femoral neck showed significant differences between the two groups: 3.16 mm in group 1 and 4.11 mm in group 2 (p=0.004). There was no statistical difference in the other measurements. Conclusion: Femoral neck insufficiency fracture often has a delayed diagnosis because of the characteristics of the fracture. The cortical thickness of the medial femoral neck in simple radiographic images can help suspect femoral insufficiency fractures in elderly patients when considered with detailed medical history taking and a physical examination.

대퇴골두 무혈성괴사에서 대퇴골두의 침범정도 및 병기가 대퇴경부에 미치는 영향에 관한 연구

장준동 ( Jun Dong Chang ),이영호 ( Young Ho Lee ),박혜림 ( Hye Rim Park ),최수종 ( Soo Joong Choi ),장호근 ( Ho Guen Chang ),조원호 ( Won Ho Cho ),이창주 ( Chang Ju Lee ) 대한고관절학회 1996 Hip and Pelvis Vol.8 No.2

The purpose of this study is to evaluate the MR signal abnormality and the histologic changes in the femoral neck in the patient of AVN of the femoral head, to evaluate the factors that affect the changes in the the femoral neck, to correlate the head involvement according to radiographic staging and MR imaging with the MR signal and histologic changes in the femoral neck. Forty-five hips in 37 patients who had AVN of the femoral head (> stage III) were studied with radiography and MRI. Twenty femoral head and neck specimens for histologic study were obtained i ntraoperati vely. Patient data such as age, sex, site, bilateraity, weight, activity, the history of alcohol or steroid showed no statistically significant difference according to femoral neck involvement. Abnormal MR imaging in the femoral neck was observed in 19 hips (42.2%). The pattern was classified as Type A (diffuse, Mitchell class C, 10 cases), Type B (localized, Mitchell class D, 4 cases), Type C (localized with central lesion, Mitchell class A, 5 cases). This study demonstrated that changes on MR imaging and histologic findings in the femoral neck were increased when the extent of involvement of the femoral head on the radiograph and MR imaging is extensive. Further study such as a clinical study combined with MRI and histologic study is required to know the influence of the histologically changed area on the result of cementless THA.

노년층에서의 대퇴골 경부 부전성 피로 골절

문찬웅 ( Chan Woong Moon ),김형민 ( Hyong Min Kim ),김윤수 ( Youn Soo Kim ),정창훈 ( Chang Hoon Jeong ),박일중 ( Il Jung Park ),이현식 ( Hyun Sik Lee ),이기행 ( Kee Haeng Lee ) 대한고관절학회 2009 Hip and Pelvis Vol.21 No.1

목적: 70세 이상 노인에서 발생한 대퇴골 경부의 부전성 피로 골절(제1군)을 분석하여 외상성 대퇴골 경부 골절(제2군)과 비교하고자 하였다. 대상 및 방법: 2000년 1월부터 2006년 10월까지 70세 이상 노년에서 발생한 191예의 대퇴골 경부 골절 중 10예의 부전성 피로골절에 대하여 분석하였으며, 외상성 대퇴골 경부 골절과의 차이점을 골밀도, 고관절장축길이, 대퇴경간각 및 고관절장축길이 대 대퇴경나비의 비율을 이용하여 분석하였다. 결과: 대퇴골 경부 부전성 피로골절의 발생율은 5.2%이었다. 10예 중 단순 방사선 검사상 전위성 골절이 6예, 비전위 골절은 4예였다. 비전위골절은 모두 신장형(횡형)이었다. 경간각은 제1군에서 130.45도, 제2군에서 131.94도였으며, 고관절장축길이는 제1군에서 117.6 mm, 제2군에서 115.3 mm였고, 고관절장축길이와 대퇴경나비의 비율은 두 군에서 모두 0.30이었다. 골밀도는 제1군에서 T-점수가 -3.73, 대조군에서는 -3.4였다. 결론: 외상성 대퇴골 경부 골절군과의 비교에서 골밀도는 부전성 골절군에서 의미 있게 더 낮았으나 단순 방사선학적 계측상 경간각, 고관절장축길이 및 고관절장축길이와 대퇴경나비의 비율에서 유의한 차이는 없었다. Purpose: We wanted to compare the insufficiency stress fractures of the femoral neck (group I) with the traumatic femoral neck fractures (group II) in patients who were 70 years of age and older. Materials and Methods: Between January 2000 and October 2006, we evaluated 10 insufficiency stress fractures among 191 femoral neck fractures in patients who were 70 years of age and older. We compared these fractures with the traumatic femoral neck fractures by using the bone mineral density (BMD), neck-shaft angle, the hip axis length (HAL) and the ratio of the HAL to the femoral neck width. Results: The incidence of insufficiency stress fracture was 5.2%. There were 6 cases of displaced fractures and 4 cases of non-displaced fractures. All of non-displaced fractures revealed the tension (transverse) type. The mean neck-shaft angle was 130.45 degrees in group I and this was 131.94 degrees in group II. The mean HAL was 117.6 mm in group I and 115.3 mm in group II, and the ratio of the HAL to the femoral neck width was 0.30 in each group. The BMD (T-score) was -3.73 in group I and -3.4 in group II. Conclusion: The BMD of the insufficiency fracture group was significantly lower than that of the traumatic femoral neck fracture group. However, there were no significant differences in the neck-shaft angle, the HAL and the ratio of the HAL to femoral the neck width between the 2 groups.

Clinical Results of Internal Fixation of Subcapital Femoral Neck Fractures

Joon Soon Kang,Kyoung Ho Moon,Joong Sup Shin,Eun Ho Shin,Chi Hoon Ahn,Geon Hong Choi 대한정형외과학회 2016 Clinics in Orthopedic Surgery Vol.8 No.2

Background: Subcapital femoral neck is known to cause many complications, such as avascular necrosis (AVN) of the femoral head or nonunion, compared with other femoral neck fractures. The purpose of this study was to analyze the incidence of AVN and fixation failures in patients treated with internal fixation using cannulated screws for the subcapital femoral neck fractures. Methods: This study targeted a total of 84 cases of subcapital femoral neck fractures that underwent internal fixation using cannulated screws. The average follow-up time after surgery was 36.8 months (range, 24 to 148 months). Results: Nine hips (10.7%) showing AVN of the femoral head and 6 hips (7.1%) showing fixation failures were observed. The factors affecting the incidence of AVN of the femoral head after sustaining fractures correlated well with fracture types in the Garden classification (p = 0.030). The factors affecting fixation failure were the degree of reduction (p = 0.001) measured by the Garden alignment index and firm fixation (p = 0.009) assessed using the technique of 3-point fixation through the inferomedial cortical bone of the femoral neck. Conclusions: The complication rates for subcapital femoral neck fractures were lower than those previously reported; hence, internal fixation could be a primary treatment option for these fractures.

일시적 K-강선 및 재건상 골수정을 이용한 동측 대퇴골 경부 및 간부 동시골절의 치료

이상준 ( Sang Joon Lee ),이상홍 ( Sang Hong Lee ),하상호 ( Sang Ho Ha ),이광철 ( Gwang Chul Lee ) 대한골절학회 2015 대한골절학회지 Vol.28 No.1

Purpose: The purpose of this study is to evaluate the results of operative treatment using a reconstruction nail after temporary K-wire fixation of the femoral neck for ipsilateral femoral neck and shaft fractures. Materials and Methods: A total of 11 cases were treated, which were followed-up for more than two years, between August 2007 and July 2012. The average age was 51 years (29-69 years) and men were dominant counting eight cases. All cases were operated with a reconstruction nail after temporary K-wire fixation of the femoral neck. Bone union periods, alignment, etc. were evaluated by radiological methods and accompanying damage and complications were also investigated. Functional evaluation was performed in accordance with Friedman and Wyman criteria at the last follow-up. Results: The average time for union of the femoral shaft was 22.5 weeks (12-32 weeks), and femoral neck was 13.1 weeks (8-20 weeks). There was no nonunion, and four femoral shaft fractures resulted in delayed union. There was one case of leg length discrepancy more than 2 cm long, but malalignment of more than 10 degrees was not observed. Avascular necrosis of the femoral head did not occur. Functional results were good in eight cases, fair in two cases, and poor in Conclusion: Treatment with reconstruction nailing after temporary K-wire fixation of the femoral neck is thought to be a good method which prevents neck displacement and has low complication rates.

Case Reports : Bilateral Femoral Neck Insufficiency Fractures after Use of a Long-term Anti-resorptive Drug Therapy for Osteoporosis: A Case Report

( Dong Ki Ahn ),( Jin Hak Kim ),( Jae Il Lee ),( Jin Woo Kim ) 대한고관절학회 2015 Hip and Pelvis Vol.27 No.2

A 78- year-old woman developed an insufficiency fracture on her right femoral neck without trauma after four years of treatment with a bisphosphonate. Her fracture was fixed by two screws and her anti-osteoporotic drug was changed from an anti-resorptive to an anabolic agent. Seven months later, however, she sustained similar insufficiency fracture on the left femoral neck and was treated with the same method. She developed right inguinal pain again approximately eight months after her right side operation. The results of imaging tests revealed that her insufficiency fracture was converted to complete fracture, and that the fracture gap had widened as well. Her right hip was revised with hemiarthroplasty. A histological exam of the fracture site revealed evidence of decreased bone healing. Long-term administration of anti-resorptive drug prevents bone healing and remodeling and can result in atypical fractures of the femoral neck. Osteosynthesis was difficult to accomplish despite the application of proactive fixation. Therefore, more rigid fixation and careful postoperative treatment should be considered.

정량적 컴퓨터 단층촬영을 이용한 골밀도 검사에 있어 정확한 측정위치에 관한 연구

김성은(Seong Eun Kim),이혜진(Hye Jin Lee),임기빈(Ki Bin Lim),강성호(Sung Ho Kang),임재식(Jae Sik Lim) 대한전산화단층기술학회 2013 대한CT영상기술학회지 Vol.15 No.1

목적 : 본 연구는 QCT를 이용한 골밀도 검사에 있어 흉추와 요추부위의 ROI 위치변화와 대퇴경부의 측정각도에 따른 골밀도 값의 변화를 비교 분석하여 정확한 측정을 위한 기준점을 알아보고자 한다. 대상 및 방법 : 2012년 11월1일부터 2013년 1월31일까지 본원을 내원하여 QCT 검사를 시행한 환자 중 측정의 신뢰도를 높이기 위해 골밀도 측정 부위에 골절이 없는 환자 남자 2명, 여자 53명을 대상으로 하였다. 연구에 사용된 CT장비는 GE사의 LightSpeed VCT 64를 사용하였으며, 획득한 자료는 QCT PROTM (Mindway, GE, Madison, WI, USA) 프로그램을 사용하여 T-12(thoratic spine 12), L-1(lumbar spine 1), L-2(lumbar spine 2)와 대퇴경부의 BMD(bone mineral density)(mg/cm³), Z-score와 T-score를 측정하였다. 대조군의 경우 QCT 프로그램에서 권고하고 있는 기본적인 수정원칙을 지켜 측정을 시행하였으며 실험군의 경우 대조군와 동일한 수정조건을 유지한 후 최종단계에서 흉추와 요추의 경우 ROI의 위치를 venus complex defect가 포함되지 않도록 중앙으로 이동시켜 골밀도 값을 측정 하였고, 대퇴경부의 경우 측정각도를 위로 5도와 10도, 아래로 5도와 10도 변화시켜 연구를 진행하였다. 골밀도 측정 위치가 변함에 따라 측정값이 변할 것이라는 연구가설과 실험연구를 통해 확인된 가설에 신뢰성을 부여하기 위해 실시하였다. 연구대상 55명 중 20명을 무작위로 선택한 후 5명의 방사선사가 독립적으로 골밀도 값을 측정한 후 각 그룹에서 유의한 차이가 발생하는지 알아보았다. 결과 : 흉추와 요추의 대조군과 실험군의 골밀도 측정결과 BMD의 경우 ROI 위치를 중앙으로 이동하여 측정한 실험군의 T-12, L-1 과 L-2 의 BMD 값은 147.8, 137.5, 152.9 mg/cm³으로 대조군에 비해 8.5%, 4.7%, 17.7% 높았으며, Z-score와 T-score 경우 64.6% 와 26.3% 높게 측정되었다. ROI 위치 변화에 따른 상관관계를 알아보기 위한 유의성 검정결과 그룹 간 흉추와 요추의 BMD 값 모두 유의한 차이를 보였다. Z-score와 T-score값 역시 유의한 차이를 보였다. 대퇴경부의 경우 대조군과 각도를 변경하여 측정한 실험군의 측정결과 다른 부위와 비교하여 대퇴경부의 BMD, T-score와 Z-score에서 최대값과 최소값의 차이가 크게 나타났으며 통계적으로도 유의한 차이(p〈0.05)를 보였다. 5명의 방사선사가 독립적으로 측정한 임상연구 결과 5명 모두 BMD에서 평균값의 차이를 보였으며 최대값과 최소값의 차이는 T-12(thoracic spine 12)의 경우 10.7, L-1(lumbar spine 1)에서 5.7, L-2(lumbar spine 2)에서 12.6의 차이를 보였다. Score의 최대값과 최소값의 차이는 Z-score 0.156, T-score 0.271의 차이를 보였고 세 개의 그룹에서 유의한 차이(p〈0.05)를 보였다, 대퇴경부의 BMD, Z-score와 T-score의 최대값과 최소값의 차이는 0.158, 0.7, 0.0068 이었고 두 개의 그룹에서 유의한 차이(p〈0.05)를 보였다. 결론 : 연구결과 골밀도를 결정하는 T-score와 Z-score의 값이 측정방법의 변화에 따라 유의한 차이를 보였으며 이러한 결과는 추적 검사 시 측정자의 측정방법에 따라 결과치가 상당부분 달라질 수 있음을 시사하고 있다. 따라서 QCT를 이용한 골밀도 측정은 측정자의 주관적인 판단에 따라 ROI의 위치나 각도를 변경하지 않는것이 중요하며, 특히 추적검사의 경우 기존에 흉추와 요추에서 측정했던 ROI 위치와 대퇴경부의 측정각도를 확인한 후 동일한 조건에서 측정을 하는 것이 신뢰성을 담보할 수 있는 방법일 것이다. Purpose : In terms of the bone density examination by QCT, the study would compare the bone density value is changed based on ROI location at the thoracic vertebrae as well as the lumbar vertebrae and measurement angle at the femoral neck. With any results found from the comparison, the study shall come up with a reference point that wⅢ realize the accurate measurement of the bone density. Object and Research Method : The study has carried out onto a patients group that consisted of 2 males and 53 females who received QCT check in the concerned hospital between November 1, 2012 and January 31, 2013. The study has selected patients who have never been diagnosed with a bone fracture at a part to be measured for the bone density in order to improve reliability of the measurement. Regarding CT equipment used in the study, LightSpeed VCT 64 by GE was adopted while acquired data was analyzed by QCT PROTM(Mindway, GE, Madison, WI, USA) program to measure BMD(bone mineral density)(mg/cm³), Z-score and T-score of (thoratic spine 12), L-1(lumbar spine 1), L-2(lumbar spine 2) and the femoral neck. For a control group, the measurement was operated based on the fundamental correcting criterion recommended by QCT program. For an experimental group, the correcting criterion should be identical with that of the control group but stⅢ, at the final stage, ROI location of the thoracic vertebrae and the lumbar vertebrae wⅢ not include venus complex defect. For that purpose, ROI has been moved to the center before the bone density was measured, and again, in case of the femoral neck, the study was conducted as the measurement angles were revised by 5˚ and 10˚ upwards as well as 5˚and 10˚ downwards. Such experiments were carried out to pursue reliability of the confirmed hypothesis which says that a different bone density measurement location wⅢ affect measurement values. Out of the 55 research objects, 20 were randomly selected to be separately measured for the bone density by five radiological technologists. Afterwards, any significant differences were searched in each of the groups. Results : When it comes to comparing the bone density of the thoracic vertebrae and the lumbar vertebrae from the control group and the experimental group, in case of BMD with ROI moved to the center, the experimental group was appeared to have BMD value of 147.8, 137.5 and 152.9 mg/cm³ for T-12, L-1 and L-2. The findings were proved to be higher by 8.5%, 4.7% and 17.7% than those of the control group. In terms of Z-score and T-score, the experimental group, again, came up with greater values by 64.6% and 26.3%. A significance test was carried out to study a correlation depending on different ROI location. According to the results, all BMD values of the thoracic vertebrae and the lumbar vertebrae between the groups were found to have a significant difference. That went the same both with Z-score and T-score values as they came out with another significant value. In case of the femoral neck, different angles were adopted for the experimental group. The results were compared to those values from the other parts, and BMD, T-score and Z-score of the femoral neck appeared to have a great difference with the maximum value and the minimum value. That was proved to be statistically significant with a value of p〈0.05. Five radiological technologists separately performed a clinical research on the selected patients. According to the results, all the five objects came up with a different average value with BMD, and for the gap between the maximum value and the minimum value, T-12 showed 10.7 while L-1 and L-2 ended up with 5.7 and 12.6 respectively. As to the difference of Score with the maximum value and the minimum value, Z-score provided 0.156 while T-score showed 0.271. The three groups were confirmed to have a significant difference (p〈0.05). The difference between the maximum value and the minimum value of BMD, Z-score and T-score of the f

폐경 후 여성의 요추골밀도와 대퇴골경부골밀도 관련 요인

이강용 ( Kang Yong Lee ),김판수 ( Pan Soo Kim ),감신 ( Sin Kam ) 한국보건정보통계학회(구 한국보건통계학회) 2014 보건정보통계학회지 Vol.39 No.2

Objectives: This study was performed to investigate related factors in bone mineral density of both the L-spine and femoral neck of post menopausal women. Methods: This study was carried out by analyzing the data of 224 subjects who were examined with a bone mineral density (BMD) at Young Cheon City Health Center during the period from January 2011 to December 2012. 224 postmenopausal women over 50 years old were measured for their age, height, weight, body mass index, lipid profile, previous medical history, physical activity and dairy product intake. Results: Among the postmenopausal women, 33.9 percent of the subjects had a normal bone mineral density of their lumbar spines. The mean bone mineral density of their lumbar spines of post menopausal women was -1.37±1.34 g/㎠. 26.3% of the subjects had a normal bone mineral density of their femoral neck. The mean bone mineral density of the femoral neck of post menopausal women was -1.53±0.90 g/㎠. In multiple regression analysis, age, body mass index, drinking and dairy intake were significantly related with the bone mineral density of L-spines, and bone mineral density of femoral necks was significantly related with age and body mass index ( p<0.05). Conclusions: After their menopause, women undergo rapid loss of bone mineral density. Hence, they need to prevent osteoporosis before their menopause, especially. It would be important to maintain an adequate body mass index. The postmenopausal risk factors of osteoporosis should be analyzed to prevent osteoporotic fractures, which would cause socio-economic losses and even mortality.

파라메트릭 형상모델을 이용한 근위 대퇴골의 경부 골절 영향 해석

이호상(Ho-Sang Lee),박병건(Byoung-Keon Park),채제욱(Je-Wook Chae),김재정(Jay-Jung Kim) 한국비파괴검사학회 2011 한국비파괴검사학회지 Vol.31 No.5

대퇴골 근위부의 기하학적 형상은 대퇴골 경부 골절과 중요한 상관관계를 가지고 있는 것으로 보고되고 있다. 기존의 연구에서는 인장실험법과 유한요소해석법을 이용하여 상관관계를 분석해왔다. 그러나 이 방법들은 인체의 미리 정의된 대퇴골 형상을 변경할 수 없고, 다수의 시험편들을 확보하기 어렵기 때문에 다양한 시험편과 모델을 적용할 수 없다는 한계가 있다. 따라서 본 연구에서는 대퇴골 골절 해석에 폭넓게 사용할 수 있도록 매개변수로 기하학적 형상 변형이 가능한 대퇴골 모델을 이용하여 대퇴골 골절과 형상매개변수의 관계를 분석하였다. 이 관계를 분석하기 위하여 4가지 주요 매개변수(대퇴골두 직경, 대퇴경부직경, 대퇴경두간 길이, 대퇴경간각)를 이용하여 다양한 해석 모델을 생성하여 유한요소해석을 수행하였다. 이 후 대퇴골두에서의 반력(reaction force)과 경부에서의 응력 분포(stress distribution)를 분석함으로써 유한요소해석을 수행하였고, 대퇴경부 직경이 대퇴골 경부 골절에 가장 큰 영향을 미치고 대퇴골두 직경이 가장 작은 영향을 미치는 결과가 나타났다. It has been reported that the femoral morphology has a major correlation to femoral neck fractures(FNF). Previous studies to analyze these correlations have relied on mechanical testing and finite element methods. However, these methods have not been widely applied to various femur samples and models. It is because of the availability of the samples from both patients and cadavers, and also of the geometric limitations in changing the shape of the models. In this study we analyzed femoral neck fractures using a parameterized femoral model that could provide flexibility in changing the geometry of the model for the wide applications of FNF analysis. With the parameterization a variety of models could be generated by changing four major dimensions: femoral head diameter(FHD), femoral neck diameter(FND), femoral neck length(FNL), and neck-shaft angle(NSA). We have performed FEA on the models to compute the stress distributions and reaction forces, and compare them with the data previously generated from mechanical testing. The analysis results indicate that the FND is significantly related with the FNF and the FHD is not significantly related with the FNF.