• Korean Journal of Veterinary Research
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• v.42 no.3
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• pp.411-418
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• 2002

Thirty rabbits underwent femoral lengthening using monolateral external fixator to evaluate results and complications of limb lengthening. Twenty rabbits survived until consolidation of callus formed at the lengthening site after finishing lengthening. Ten rabbits were sacrificed during femoral lengthening because of complications. Survived 20 rabbits were classified to two groups according the amount of lengthening: group I (10% lengthening of the femoral length); group II (20% lengthening). There was no significant difference of consolidation time between two groups (p=0.25). Varus angulation at the lengthening site occurred in 60% of two groups and the amount of varus angulation in group II was larger than that of group I. Degenerative change of articular cartilage at the medial condyle of the distal femur was found in 30% of group II. Of sacrificed ten rabbits, 5 had pin loosenings with pull an of pins from the femur, 2 had fermoral fractures around the pin-tract site, and 3 had severe osteomyelitis of the femur around the pin-tract site.

• Proceedings of the KSCN Conference
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• 2003.11a
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• pp.1071-1071
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• 2003

본 연구는 폐경전 성인여성들의 골격상태를 알아보고 신체계측 및 식이섭취실태가 골밀도에 미치는 영향을 평가하기 위해서 성인여성 61명을 대상으로 신체계측을 실시하고 24시간 회상법으로 영양소 및 주요 식품군의 식품섭취실태를 조사하고 DEXA를 사용하여 요추와 대퇴부 3부위의 골밀도를 측정하였다. 1) 대상자들의 평균 연령은 37세였으며, 평균 신장과 체중은 158.17cm, 54.55kg였으며, 평균 BMI와 WHR은 21.82, 0.78로 대상자들의 비만도는 정상이었다. 2) 평균 골밀도는 요추(L24) 1.04 g/$\textrm{cm}^2$, 대퇴경부 0.76g/$\textrm{cm}^2$, 대퇴전자부 0.66g/$\textrm{cm}^2$, 와드삼각부 0.69g/$\textrm{cm}^2$이었다. 3) T-score로 판정시 요추(L24)의 경우 골다공증군 3.28%, 골감소증군 14.75%, 대퇴경부의 경우 골다공증군 9.84%, 골감소증군 52.46%, 대퇴전자부의 경우 골다공증군 1.64%, 골감소증군 34.43%, 와드삼각부의 경우 골다공증군 6.56%, 골감소증군 45.90%였다. 4) 영양소중 칼슘(78.75%), 철분(69.75%) 및 비타민 A(92.17%) 영양소의 1일 평균 섭취량은 영양권장량보다 낮은 수준이었다. 5) 신체계측 및 영양소섭취량과 골밀도와의 상관관계분석에서 신체계측에서 체중(p < 0.05), 엉덩이둘레(p < 0.01), 제지방함량(p < 0.05), 총수분함량(p < 0.05)이 높을수록 요추골밀도가 유의하게 높았으나, 영양소섭취량은 골밀도와 유의한 상관성을 보이지 않았다. 6) 주요 식품군의 식품섭취실태와 골밀도와의 상관관계분석에서 버섯군의 식품섭취횟수(p < 0.05, p < 0.05)가 많을수록 요추(L3, L24)의 골밀도가 각각 유의하게 높았으며, 유지류군의 섭취식품수(p < 0.05)가 많을수록 와드삼각부의 골밀도가 유의하게 높았으나 곡류군의 섭취식품수(P < 0.01, p < 0.05, p < 0.05)가 많을수록 대퇴부 3부위 (대퇴경부, 대퇴전자부 및 와드삼각부)의 골밀도가 각각 유의하게 낮은 것으로 나타났다. 이상의 결과에서 폐경전 성인여성의 경우 요추보다는 대퇴부 3부위의 경우 골다공증이나 골감소증의 비율이 상대적으로 높았으며, 특히 대퇴경부에 있어서 골다공증이나 골감소증의 비율이 가장 높았음을 알 수 있다. 또한 요추와 대퇴부 3부위의 골밀도는 영양소섭취량과 유의한 상관관계를 보이지 않았으나 체중, 엉덩이둘레 등의 신체계측요인과 곡류군, 버섯군 및 유지류군 등의 주요 식품군의 식품섭취실태와 밀접한 상관관계를 보이고 있음을 알 수 있다. 따라서 성인여성에 있어서 골밀도손실을 예방하기 위해 평상시 적절한 체중유지와 아울러 식생활지침에 있어서 주요식품군별로 적절한 섭취식품의 수, 섭취량 및 섭취빈도에 대한 영양교육이 필요한 것으로 생각된다.

• Journal of the Korean Society of Radiology
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• v.7 no.5
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• pp.359-364
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• 2013

Femur is the largest bone in the human body which supports the weight of body. A long pipeline shape of femur has little cancellous bone, so that regeneration is difficult when fracture happens. The fracture caused by an accident most frequently occurs at diaphysis. IM Nailing is the surgical method that implants an IM Nail into a medullary cavity for the fixation of fracture parts. However, a secondary fracture may happen if an IM Nail does not penetrate at the center of femur. In this study, a patient-specific femur was manufactured by a 3D printer using the computed tomography images scanned before surgery, which was used for the simulation of IM Nailing. It is expected that this result may prevent the secondary damage, reduce surgical operation time, and increase the precision.

• Journal of radiological science and technology
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• v.28 no.3
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• pp.227-234
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• 2005

- Objective Osteoporosis is one of the characteristic adult diseases, high prevalence, many complications, easy fracture, important health problem. this study, compared analysis BMD data of the lumbar spine and femur - Methods For the 100 female patients,

• Journal of the Korean Orthopaedic Association
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• v.56 no.3
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• pp.200-207
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• 2021

Periprosthetic femoral fractures remain as one of the most challenging complications following total hip arthroplasty. A thorough clinical and radiographic evaluation, precise classification, and understanding of modern management principles are essential to obtain optimal results for these fractures. The Vancouver classification system is a simple, effective, and reproducible method for the planning treatments of these injuries. The fractures associated with a stable femoral stem can be treated effectively with osteosynthesis, but periprosthetic femoral fractures associated with a loose stem require revision arthroplasty. This paper describes the principle of the treatment of patients with periprosthetic femoral fractures and how to assess the stability of the femoral stem.

• Journal of the Korean Orthopaedic Association
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• v.56 no.6
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• pp.535-539
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• 2021

Vascular complications following a femoral fracture are rare but can result in serious issues. Several case studies have reported pseudoaneurysms occurring after direct trauma or the insertion of a proximal femoral nail in the case of a proximal femoral fracture. The authors encountered an 85-year-old patient treated with retrograde intramedullary nail fixation for a distal femur fracture and suffered a decrease in the hemoglobin level, swelling, and pain on the 9^th day after surgery. The authors initially attributed the temporary hematoma and pain to ordinary postoperative processes. On the 16^th day after surgery, a pseudoaneurysm originating from the descending branch of the lateral femoral convolutional artery was diagnosed and treated by percutaneous vascular embolization. After the procedure, the hemoglobin level increased, and the swelling and pain decreased.

• Journal of Chest Surgery
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• v.40 no.3 s.272
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• pp.236-239
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• 2007

During dissection of the saphenofemoral junction, anatomical variations in the tributaries of the long saphenous vein and external pudendal artery are frequently encountered, but the transpositions of the femoral artery and vein have very rarely been reported. On operation of the varicose vein, the surgical complications can be minimized when the possible deviations in the normal anatomy are taken into the consideration.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.05a
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• pp.735-737
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• 2023

본 논문에서는 대퇴골의 3D 메쉬 모델에 대해 원통형 좌표계(cylindrical coordinate system)를 생성하는 방법을 제안한다. 원통형 좌표계는 대퇴골 메쉬의 방향에 따라 장축 및 단축을 결정한 뒤, 대퇴골을 포함하는 원통(right circular cylinder)을 계산하여 생성된다. 실험을 통해, 생성된 원통형 좌표계에서 균일하게 생성한 삼각형 메쉬(triangular mesh)를 대퇴골 메쉬에 투사한 결과를 보인다.

• Journal of the Korean Orthopaedic Association
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• v.54 no.6
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• pp.567-573
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• 2019

Slipped capital femoral epiphysis (SCFE) is a rare disorder of the proximal femur in adolescents. The pathogenesis of SCFE is unclear, but it is believed to be the result of a mechanical insufficiency of the proximal femur physis. SCFE appears to caused by mechanical, endocrinal, and immunological abnormalities. Few cases have reported the SCFE associated with endocrine disorder in the domestic literature, particularly in patients over 20 years old. This paper reports two cases of SCFE associated with hypopituitarism in adults over 20 years old.

• The Journal of the Acoustical Society of Korea
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• v.28 no.6
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• pp.542-547
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• 2009

In this in vivo study, correlations of lumbar and femoral bone mineral densities (BMDs) with calcaneal speed of sound (SOS) were investigated in 36 osteoporotic women. Areal BMDs of the L2-L4 lumbar spine and the right femoral neck were measured by using dual energy X-ray absorptiometry (DEXA). SOS of the right calcaneus was measured by using ultrasound bone densitometry. Pearson's correlation coefficient (r) and level of significance (p) were used to evaluate the correlations between measurements. Lumbar BMD was highly correlated with femoral BMD (r=0.81). Lumbar and femoral BMDs exhibited similar comparable negative correlations with age (r=-0.52 and r=-0.55). A moderate negative correlation was found between calcaneal SOS and age (r=-0.45). Calcaneal SOS was significantly correlated with lumbar and femoral BMDs, with a higher correlation with femoral BMD rather than with lumbar BMD (r=0.54 and r=0.62). However, calcaneal SOS may not be an optimum index for the estimation of BMD of the most important fracture sites, such as the lumbar and the femur, because it showed lower correlations with lumbar and femoral BMDs compared to that with calcaneal BMD. Therefore, the development of a quantitative ultrasound technology for the direct measurement of acoustic properties at the lumbar and the femur is required to estimate BMD of these sites more accurately.