• Clinical Pain
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• 제18권2호
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• pp.126-129
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• 2019

Bilateral femoral neck stress fractures have been rarely reported. When diagnosed, they are usually limited to athletes or military personnel. A 35-year-old man, previously healthy, visited the emergency department for right inguinal pain. On physical examination, no external wound, tenderness or limitation of motion were found in either lower extremity. Plain radiography showed normal findings but an magnetic resonance image showed a linear fracture in the femoral neck. In this case, bilateral femoral neck stress fractures were found in a young non-athlete adult with no prior medical history of related injuries. Surgery is generally not performed for stress fractures but considering the patient's early mobilization and the need for quick reintegration into society, surgery was done in this case.

• 대한골관절종양학회지
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• 제1권1호
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• pp.52-59
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• 1995

Metastatic cancer is the most common tumor of the skeleton. The prevalence of pathologic fracture may increase as patient survival is prolonged by improved cancer therapy. With recent advances in orthopaedic procedure and medical management of terminal cancer patients, it is generally agreed that aggressive treatment should be undertaken for patient with pathologic fracture secondary to metastatic disease, and a team approach should be utilized. The authors have reviewed twenty cases of pathologic fracture of the long bone due to metastatic tumor treated in the Department of Orthopedic Surgery, Yonsei University College of Medicine, from April 1989 to April 1994 and the following results were obtained. 1. The mean age at surgery was 58.4 years (ranged from 24years to 86years) and among 20 cases, 10 cases were male and the others were female. 2. The most frequent site of pathologic fracture in long bone is femur(15 cases, 75%), and followed by humerus(4 cases, 20%), tibia(1 case). 3. The frequently encountered primary tumors that metastases to long bone are those of the lung(7 cases, 35%), breast(4 cases, 20%), and prostate(2 cases, 10%). 4. The operative procedure was performed by resection of the tumor mass extensively, and we used polymethylmetacrylate for filling the dead space after resection, in all cases. 5. The mean survival period after operation is 9.2 months(ranged from 1 month to 4 years and 9 month). 6. The results of postoperative pain relief status were graded as fair to excellent in 17 cases(85%).

• Composites Research
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• 제24권3호
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• pp.6-11
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• 2011

본 논문은 복잡한 형상으로 드레이핑 성행된 직물 복합재료 구조의 국부적 물성 변화 및 재료거동 예측을 위한 방법을 제시하였다. 제안된 방법을 적용하기 위해 대퇴골 골 간단 부 골절치료용 고정판을 대상으로 선정하였다. 드레이핑 공정 종 발생하는 재료의 거시적/미시적 변형에 의한 국부적 재료물성 변화를 다양한 실험을 통해 검증하고, 그 결과를 복잡한 형상을 가지는 고정판의 정적/피로 거동 예측에 활용하였다. 본 논문은 복잡한 형상을 가지는 복합재료 구조물의 설계 및 성능평가에 유용한 정보와 해석방법을 제시할 것으로 기대된다.

• 비파괴검사학회지
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• 제35권2호
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• pp.103-111
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• 2015

본 연구에서는 골절 위험도가 높은 대퇴골의 두꺼운 피질골판이 해면질골의 초음파 특성에 미치는 영향을 조사하였다. 이를 위해 소의 대퇴골을 이용하여 12개의 해면질골을 제작하였으며, 피질골과 유사한 밀도 및 음속을 갖는 아크릴을 이용하여 피질골판을 모사하는 1.25, 1.80, 및 2.75 mm의 두께를 갖는 아크릴판을 제작하였다. 해면질골 양면에 부착된 아크릴판의 두께가 증가하더라도 음속과 해면질골의 겉보기 골밀도 사이에 Pearson 상관계수는 0.80-0.86의 값을 가지며, 높은 상관관계가 존재하는 것으로 나타났다. 또한 0.5 MHz에서 측정된 감쇠계수와 해면질골의 겉보기 골밀도 사이에 Pearson 상관계수는 0.84-0.91의 값을 가지며, 높은 상관관계가 존재하는 것으로 나타났다. 이와 같은 결과로부터 종골에 비해 상대적으로 더 두꺼운 피질골판을 갖는 대퇴골에서 측정된 음속 및 특정 주파수에서의 감쇠계수는 대퇴골의 골밀도를 예측하기 위한 지표로서 이용될 수 있음을 알 수 있다.

• 한국음향학회지
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• 제31권4호
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• pp.244-252
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• 2012

본 연구의 목적은 골절 위험도가 높은 대퇴골에서 음속 및 광대역 초음파 감쇠와 같은 음향특성과 골밀도 사이의 상관관계를 조사하는 것이다. 이를 위해 0.5 및 1.0 MHz의 중심주파수를 갖는 두 쌍의 초음파 트랜스듀서와 함께 투과법을 이용하여 생체 외 조건에서 15개의 소 대퇴골 해면질골 샘플의 음속 및 광대역 초음파 감쇠를 측정하였다. 또한 마이크로 컴퓨터 단층촬영법을 이용하여 해면질골 샘플의 단위체적당 골밀도를 측정하였다. 골밀도는 0.5 및 1.0 MHz 초음파 트랜스듀서를 이용하여 측정된 음속 및 광대역 초음파 감쇠와 모두 강한 상관관계를 나타냈으며, 골밀도와 0.5 MHz 초음파 트랜스듀서를 이용하여 측정된 광대역 초음파 감쇠 사이에 가장 높은 상관관계가 존재하였다. 이와 같은 결과는 생체 외 조건의 대퇴골에서 측정된 음향특성이 대퇴골의 골밀도를 예측하기에 충분한 지표라는 것을 의미한다.

• 대한골관절종양학회지
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• 제11권2호
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• pp.175-182
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• 2005

목적: 대퇴골에서 골 종양은 주로 근위 전자부와 원위 간단부에 발생한다. 그러나 대퇴골은 체중부하와 연관하여 종양의 크기에 따라서는 병적 골절을 유발하게 된다. 그러므로 종양제거후 대퇴골의 해부학적 특성을 고려한 angled blade plate로 보완해 준다면 생역학적 측면에서 그 예후를 훨씬 개선할 수 있을 것 여겨진다. 대상 및 방법: 1991년 10월부터 2005년 4월까지, 대퇴골에 발생한 골 종양을 제거하고 Blade Plate로 보완해준 환자 16명 17예를 대상으로 하였다. 종양제거 후 11예에서 골 이식으로, 6예에서 골 세멘트로 채워 넣었으며, 모든 예에서 angled blade plate를 사용하여 내고정을 시행하였다. 결과: 평균 추시 기간은 16명 환자(17예)에서 55.5개월 이었다. 시술 후 금속에 관련된 실패는 없었다. 종양의 재발로 인하여 재수술이 4예에서 있었으며 재수술전까지 내고정은 유지되었다. 결론: angled blade plate는 종양수술 후 이식 골의 결합이 이루어질 때까지 그 부위를 골절로부터 보호하며, 골 세멘트를 사용한 경우는 골 세멘트와 골조직과의 취약한 이음새를 골절로부터 보호하였다.

• 대한골관절종양학회지
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• 제3권1호
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• pp.32-38
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• 1997

PURPOSE : For the reconstruction of large bone defect after tumor resection, it is possible to reuse the bone involved by tumor with some treatment to it. Several bone-reusing methods have been reported such as autoclaving, low-heat treatment(pasteurization) and intraoperative radiotherapy. We have used extracorporeally radiated autogenous bone graft for reconstruction after tumor resection, and analyzed the periods for junctional union, functional results and complications to know the indications of this method. METHODS : From Dec. 1993 to Sept. 1995, nine patients had taken autogenous bone graft with extracorporeal irradiation. Eight cases were osteosarcoma and 1 giant cell tumor. The graft sites were 5 in femur, 3 proximal tibia and 1 femur and tibia. Stage 3 was 1 case(GCT), Stage IIB 3 and Stage IIIB 5. After wide resection, surrounding soft tissue and intramedullary and extramedullary portion of the tumor were removed. Radiation was done in 5000cGy to the resected bone. Ender nails and bone cement were inserted and filled into the medulla to prevent fracture. RESULTS : Average follow-up period was 12.3(4 to 21) months. Average junctional union period in simple X-ray was 6.5 months in 4 cases. Average functional score following Enneking's criteria was 19(12-27). Complications were as follows ; condylar fractures and femur neck fracture in 4 cases, subluxation of the knee joint 3 and infection 1. Although local recurrence was detected in 1 case, the site of recurrence was not in the radiated bone but surrounding soft tissue. At final follow-up, no recurrence was found in one case(GCT), CDF 2, AWD 2, DOD 3, and died of chemotherapy related sepsis 1. CONCLUSIONS : Extracorporeally radiated bone autograft is considered to be a method for reconstruction of the large bone defect made by tumor resection, especially in the reconstruction around the joint.

• 대한족부족관절학회지
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• 제5권2호
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• pp.156-159
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• 2001

Unicameral bone cysts are benign solitary lesions that occur in the first two decades of life and with a greater frequency in the humerus and femur. The cyst is usually asymptomatic unless a fracture or impending fracture is present. The traditional method of treating unicameral cysts has been curettage with bone graft or steroid injection. Also, pathologic fractures in the calcaneus, unlike in other bones, are reported especially in the children to be nonexistent. In general, closed treatment was recommended for most of the calcaneal fractures in children, but suggested open reduction when joint displacement was severe. We report a case of displaced intraarticular fracture of the calcaneus with unicameral bone cyst in a child treated by classic curettage, allograft and open reduction with screw fixation.

• 기본간호학회지
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• 제17권3호
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• pp.334-342
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• 2010

Purpose: The purpose of this study was to examine the effects of Tai Chi exercise on flexibility, balance, walking ability, muscle strength, bone mineral density, and fracture risk in institutionalized elders. Method: A quasi-experimental pretest-posttest design with a nonequivalent comparison group was utilized, and 53 older adults living in one institution were recruited and assigned to one of two groups, experimental group (18) or comparison (20). Both groups completed posttest measures at 6 months. There was a 31% rate of dropouts. Tai Chi exercise was provided twice a week for 24 weeks. Outcome measurements were conducted by a physiotherapist at a university hospital health promotion center who did not know the group assignment. Results: At 6 months, the experimental group had significantly greater grip strength(t=2.12, p=.04), back muscle strength (t=2.42, p=.02), balance (t=5.31, p<001), and flexibility (t=3.57, p<.001). They also showed significantly greater bone mineral density of lumbar spine and femur, and reduced fracture risk. Conclusion: Tai Chi exercise was safely and effectively used with institutionalized elders for 6 months and significantly improved physical fitness, bone mineral density along with a reduction in fracture risk. Whether Tai Chi exercise would lead to prevention of fall episodes and fall related fractures in this population will require further study.

• Journal of Korean Neurosurgical Society
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• 제52권4호
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• pp.339-345
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• 2012

Objective : The purpose of this study was to investigate the patterns and the risk factors of newly developed vertebral compression fractures (VCFs) after percutaneous vertebroplasty (PVP). Methods : We performed a retrospective review of the 244 patients treated with PVP from September 2006 to February 2011. Among these patients, we selected 49 patients with newly developed VCFs following PVP as the new VCFs group, and the remaining 195 patients as the no VCFs group. The new VCFs group was further divided into 2 groups : an adjacent fractures group and a nonadjacent fractures group. The following data were collected from the groups : age, gender, body weight/height, body mass index (BMI), bone mineral density (BMD) score of the spine and femur, level of initial fracture, restoration rate of anterior/middle vertebral height, and intradiscal cement leakage, volume of polymethylmethacrylate (PMMA). Results : Age, gender, mean body height/weight, mean BMI and volume of PMMA of each of the group are not statistically significantly associated with fractures. In comparison between the new VCFs group and the no VCFs group, lower BMD, intradiscal cement leakage and anterior vertebral height restoration were the significant predictive factors of the fracture. In addition, new VCFs occurrence at the adjacent spines was statistically significant, when the initial fracture levels were confined to the thoracolumbar junction, among the subgroups of new VCFs. Conclusion : Lower spinal BMD, the greater anterior vertebral height restoration rate and intradiscal cement leakage were confirmed as risk factors for newly formed VCFs after PVP.