• 한국임상수의학회지
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• 제35권3호
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• pp.88-92
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• 2018

Osteochondroma (OC) is a cartilage-capped exostosis. In horses, OC commonly develops on the caudal distal metaphysis of the radius (CDMR). The purpose of study was to describe the outcomes of arthroscopy for the treatment of OC on CDMR. Diagnosis was based on clinical signs (lameness and distention of carpal sheath), radiography (location and size of OC), and ultrasonography (location of OC, torn deep digital flexor tendon, fibrin, and effusion of carpal sheath). Arthroscopy was performed on 68 Thoroughbred horses with OC on CDMR. Sixty of the 68 cases showed deep digital flexor tendinitis as a result of sharp protuberances of the OC. All horses survived, and 62 of the 68 cases returned to athletic function (racing) after arthroscopy. The present study demonstrated that arthroscopy is useful for treating OC of CDMR in horses.

• 대한족부족관절학회지
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• 제12권2호
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• pp.220-223
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• 2008

Osteochondroma is the most common benign bone tumor which commonly occurs in the metaphysis of the long bones such as proximal humerus, tibia, and distal femur. It is rarely found in bones of the foot. Although they are benign lesions, when they occur in the foot, they are typically identified earlier than other regions because of the low proliferation of subcutaneous tissue in the region and may cause symptoms. We experienced a rare case of osteochondroma in a 60-year-old male which cause pain and swelling of the fourth toe.

• Clinics in Shoulder and Elbow
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• 제19권3호
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• pp.172-175
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• 2016

Osteochondromas are one of the most common benign bone tumors usually involving extraarticular metaphysis of long bone. Solitary intra-articular osteochondroma arising from the elbow joint has rarely been reported. We present a case of 23-year-old female who had pain and limited motion of the left elbow as a result of intraarticular osteochondroma of the distal humerus. Arthroscopic excision of the osteochondroma yielded complete relief of symptoms. Absence of recurrence was confirmed radiographically at two years after surgery. To the best of our knowledge, this is the first report of osteochondroma of the elbow successfully treated arthroscopically.

• 대한족부족관절학회지
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• 제6권2호
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• pp.233-237
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• 2002

Osteogenic sarcoma is the most common primary malignant tumor of bone in which tumor cells form neoplastic osteoid or bone or both. Classic osteogenic sarcoma usually involves the metaphysis of the more rapidly growing long bones (distal femur, proximal tibia). Osteogenic sarcoma of the foot is rarely noted and only a few well documented cases have been reported. Osteogenic sarcoma of foot can clinically, radiographically, and histologically mimic several benign lesions and tumor-like lesions, so it sometimes leads to late diagnosis and delayed treatment. We experienced a case of primary osteogenic sarcoma on left calcaneus in 66-years-old female and report it with a review of references.

• 대한골관절종양학회지
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• 제5권1호
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• pp.17-22
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• 1999

Over 60 cases were enlisted, but only 31 cases among 24 patients were eligible with a minimum follow-up of 1 year and complete medical documents with imaging data. There were 18 boys and 6 girls, and 7 patients had bilateral lesions. The age of the patients ranged from 2 to 20 years(mean:10.5 years). At their first visit, most lesions had a highly characteristic location and radiographic appearance of radiolucent lesion(s) ranging from 1 to 3cm, except for one case of 5.5 cm in the posteromedial comer of distal femoral metaphysis. The margins were generally well-defined, although some were ill-defined. After reviewing our cases from the viewpoint of clinical course and radiographic patterns, we divided these lesions into two types. Type I is the osteolytic lesion excavated into the posteromedial aspect of the distal femur without cortical defect; and type II is the buldged out lesion of the femur with cortical irregularity into the surrounding soft tissues. Both types have distinctive clinical courses. Type I lesions were easy to make a definite diagnosis with plain radiographs alone, but in type II, it was sometimes very difficult to differentiate it from malignant tumors or chronic localized osteomyelitis. For this lesion, Gd-enhanced MRI was the most effective method for differential diagnosis. In this study, biopsy was not necessary to confirm the diagnosis. Clinical symptoms of type I were very minor or even absent. Many of them were accidentally found after minor trauma around the knee joint. Clinical symptoms disappeared far earlier than radiographical lesions. No treatment such as restriction of activity or drugs was necessary. For type II, the clinical symptoms were more accentuated and lasted longer, and it was necessary to restrict the activity for a certain period in many cases. However, all were self-limited.

• 한국임상수의학회지
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• 제27권1호
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• pp.117-120
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• 2010

A 5-years-old 3.7 kg intact female Pomeranian dog was presented with the history of swelling and pain in the distal part of the right forelimb. The swollen lesion was firm as bony material on palpation. On radiographic examination, there was a well-marginated, radiolucent, and expansile bone lesion in the distal metaphysis of the right ulna. Because of very narrow zone of transition, well-defined margins and absence of any periosteal reactivity, benign bone cyst was strongly suspected. The lesion was removed by en bloc resection and packed the space with $Gelfoam^{(R)}$ and aneurysmal bone cyst was finally diagnosed according to histopathological examination. Normal gait was showed on postoperative day 9 and there have been no pain and complication for 1 year since then.

• 대한골관절종양학회지
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• 제14권2호
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• pp.198-202
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• 2008

유골 골종은 골격계의 모든부위에서 발생 가능하지만, 10~20세 남아에서 대퇴골 근위부와 경골의 간부에서 주로 발생하는 것으로 알려져 있고 5세 미만의 소아환자에서 주관절에 발생하는 경우는 아주 드물다. 2세 소아에서 주관절에 발생한 유골 골종은 비정형적인 증상과 방사선 소견 그리고 환자와의 의사소통이 어렵기 때문에 진단이 지연 될 수 있다. 저자들은 2세 여아에서 주관절에 활액막염과 관절내 핵을 갖는 원위 상완골 골간단부에 발생한 유골골종 1예를 치험하였기에 보고하는 바이다.

• 대한족부족관절학회지
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• 제20권3호
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• pp.140-144
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• 2016

Osteochondroma is one of the most common bone tumors. It can occur anywhere, although it is most frequent mainly around the metaphysis of long bones. Prediction sites are distal femur, proximal humerus, proximal tibia, and so on. However, osteochondroma in sesamoid is very rare. Herein, we report a case of a 56-year-old woman with symptomatic extra-articular osteochondroma in hallucal sesamoid with a brief literature review.

• 운동영양학회지
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• 제24권1호
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• pp.1-8
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• 2020

[Purpose] This study compared differences in trabecular bone architecture and strength caused by jump and running exercises in rats. [Methods] Ten-week-old male Wistar rats (n=45) were randomly assigned to three body weight-matched groups: a sedentary control group (CON, n=15); a treadmill running group (RUN, n=15); and a jump exercise group (JUM, n=15). Treadmill running was performed at 25 m/min without inclination, 1 h/day, 5 days/week for 8 weeks. The jump exercise protocol comprised 10 jumps/day, 5 days/week for 8 weeks, with a jump height of 40 cm. We used microcomputed tomography to assess microarchitecture, mineralization density, and fracture load as predicted by finite element analysis (FEA) at the distal femoral metaphysis. [Results] Both jump and running exercises produced significantly higher trabecular bone mass, thickness, number, and fracture load compared to the sedentary control group. The jump and running exercises, however, showed different results in terms of the structural characteristics of trabecular bone. Jump exercises enhanced trabecular bone mass by thickening the trabeculae, while running exercises did so by increasing the trabecular number. FEA-estimated fracture load did not differ significantly between the exercise groups. [Conclusion] This study elucidated the differential effects of jump and running exercise on trabecular bone architecture in rats. The different structural changes in the trabecular bone, however, had no significant impact on trabecular bone strength.

• 대한골관절종양학회지
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• 제6권1호
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• pp.22-29
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• 2000

목적 : 유골 골종의 치료에서 소파술 및 절제술을 이용한 치료 결과를 보고하고 영상증폭 장치하에 K-강선을 경피적으로 삽입후 핵을 Halo-mill로 제거하는 수술을 시행한 경우에도 양호한 결과를 얻어 치료법의 하나로 사료되어 보고한다. 대상 및 방법 : 1990년 3월부터 1998년 1월까지 유골 골종으로 진단하고 수술적 치료를 시행한 환자 20명을 대상으로 하였다. 남자가 14례, 여자가 6례였으며 연령분포는 7세부터 42세 까지 평균 20.8세였다. 추시기간은 최저 1년에서 최고 5년 6개월로 평균 3년 2개월이었다. 발생부위는 대퇴골이 9례로 가장 많았고, 경골이 6례, 척추 2례, 척골 1례, 상악골 1례 그리고 두개골이 1례였다. 대퇴골에 발생한 9례중 근위 골간단부는 5례, 경부가 2례, 그리고 골간부가 2례였다. 경골에 발생한 6례는 근위 골간단부와 원위 골간단부에 각각 1례 발생하고 나머지 4례는 골간부에 발생하였다. 정확한 진단과 병소를 찾아내기 위한 방사선학적 검사는 단순 방사선촬영, 골주사, 전산화 단층촬영과 자기공명영상을 이용하였다. 수술방법은 절제술과 소파술이외에 Halo-mill을 이용해 경피적으로 병소를 절제해 내는 방법을 사용하였다. 한편 척골에 발생한 1례의 경우에는 인공관절 전치환술을 시행하였다. 결과 : 단순 방사선촬영 소견상 골 경화의 중심부에 투명상을 나타내는 핵을 보이는 전형적인 소견을 보인 경우는 방사선 자료의 검토가 가능했던 15례중 10례였으며 나머지는 골피질의 경화소견만 보였다. 골주사는 14례에서 시행되었으며 전례에서 비정상적인 방사능 섭취의 증가가 나타났다. 전산화 단층촬영과 자기공명영상을 시행한 각 10례와 4례 중 병소를 확인하지 못한 경우는 전산화 단층촬영에서 1례가 있었다. 치료는 소파술 6례, 절제술 11례,Halo-mill을 사용한 경피적 절제술 2례, 그리고 인공 주관절 치환술 1례를 시행하였다. Halo-mill을 사용한 2례에서 모두 7mm 크기의 Halo-mill을 사용하여 절제술을 시행하였다. 추시 결과 모든 례에서 증상의 소실을 보였으며 재발한 경우는 없었다. 조직학적 소견상, 특징적인 병소를 확인하지 못하고 과골화 소견을 보인 1례를 제외하고는 모든 례에서 특징적인 병소를 확인하였다. 결론 : 유골 골종의 완치를 위해서는 병소를 완전히 제거하는 것이 중요한데 이를 위한 방법으로 보편적인 소파술이나 절제술이 사용될 수 있으나, 핵의 정확한 위치 및 크기가 확인되고 경피적으로 도달가능하며 Halo-mill로 핵을 제거할 수 있는 경우에는 Halo-mill을 이용한 경피적 병소 제거술의 사용이 가능할 것으로 사료된다.