• Clinics in Shoulder and Elbow
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• 제1권1호
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• pp.19-25
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• 1998

Appropriate clinical examination and imaging may lead to early diagnosis and treatment of the shoulder impingement syndrome, thus preventing progressing to a complete tear of rotator cuff. The impingement syndrome was caused by repeated entrapment and compression of supraspinatus tendon between the proximal end of humerus inferiorly, particullary its greater tuberosity. and one or m <)re component of coracoacromial arch superiorly. The purpose of this study is to critically, evaluate the result of twenty-five consecutive subacromial decompression with impingement syndrome and to assess the diagnostic accuracy of MR imaging by using oblique coronal and oblique sagittal plan. These patients were treated by arthroscopic subacromial decompression after their pains failed to improve with conservative therapy over three month. The average follow up was 25 month(range, 12 to 50). The mean age was 43 year old. The results were rated based on subjective response and the UCLA shoulder rating scale of the result. Ten patients(40%) were rated as excellent, 11patients(44%) were good. while four patients(16%) were fair. Radiologic evaluation suggested that the oblique sagittal plan of MRI can be helpful in evaluation of bony and soft-tissue structure of the coracoacromial arch and determining depth of bony resection. There were no infection or neurovascular injury. In reviewing our result, it appears that the arthroscopic subacromial decompression can be successful sugery for shoulder impingement syndrome and diagnostic accuracy of supplimentary oblique sagittal view of MRI was relatively higher than oblique coronal view alone for apprqpriate surgical plan.

• 대한골관절종양학회지
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• 제1권1호
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• pp.45-51
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• 1995

The incidence of metastatic bony lesion has been increased recently, with the advanced therapeutic modalities of malignant tumors. The purpose of this study was to evaluate the effectiveness of surgical treatment in impending or established pathologic fractures due to metastasis in extremity. From 1981 to 1992, thirty two patients who had established or impending pathologic fractures in extremity had been treated surgically. The locations of metastasis, were lower extremity in 24 cases(femsral head and neck;5, intertrochanteric;7, subtrochanteric;8, femoral shaft;4) and upper extremity in 8 cases(proximal humerus;2, humoral shaft;6). The method of surgery was excision of tumor mass and rigid internal fixation to allow immediate mobilization, except 2 cases of amputation. The results were analysed by two criteria. The first was the grade of performance status that was made by modification of Functional Classification of New York Heart Association. The second was the degree of pain relief. The performance status was improved at least one grade in all patients and the mean improvement was 1.7 grades. The satisfactory pain relief was achieved in 81% of patients. Postoperatively, most of the patients had only slight to moderate limitation of physical activities and they became comfortable at rest and ordinary activities. The solitary metastatic lesions showed better pain relief(92%) than multiple metastasis(75%). The curative surgery was done in 3 cases, and they showed more than 24 months of disease-free survival.

• 대한골관절종양학회지
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• 제12권1호
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• pp.71-77
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• 2006

연골 육종은 가장 흔한 원발성 골육종 중 하나로, 간엽성 연골육종을 제외하면 대체로 저 악성도 병변이며, 다발성 발현이나 원격 전이가 드문 것으로 알려져 있다. 다발성 내연골종(Ollier's disease)과 Maffucci's 증후군에서 다발성 연골육종이 발생한 례가 드물게 보고되었으며, 아직까지 한 관절을 사이에 두고 그 근위부와 원위부에서 연골육종이 동시에 발생한 례는 보고된 적이 없었다. 저자들은 30세 남자 환자에서 폐나 내장의 전이를 동반하지 않고, 한쪽 견관절을 사이에 두고 견갑골의 견봉과 상완골에서 동시에 발생한 다발성 연골육종을 경험하였으며, 이를 "동시성 다발성 관절 근접 연골육종"이라 명하였다. 견봉에 위치한 병변은 소파술과 함께 동종 골이식과 시멘트 충전술을 시행하였으며, 근위 상완골 병변은 설상 절제술과 시멘트 충전술을 시행하였다. 수술 후 18개월까지 재발의 증거가 관찰되지 않았으며, 통증 없이 전 범위 운동이 가능하였다.

• 대한골관절종양학회지
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• 제14권1호
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• pp.62-67
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• 2008

섬유성 골 이형성증이 골육종, 연골육종, 섬유육종 등으로 악성 변환을 하는 것은 매우 드무나 잘 알려져 있다. 악성 변화가 흔히 일어나는 부위는 두경부, 근위 대퇴골, 상완골, 골반골, 경골, 및 견갑골 순이다. 41세 다발성 섬유성 이형성증 환자가 상완골의 동통을 주소로 내원하였다. 방사선 상 상완골 간부의 골 팽윤 및 파괴를 보였다. 생검 상 저악성도의 연골육종으로 진단하여 변연부 절제를 하였으나 7개월 만에 근위부에서 국소 재발 후 재 절제한 표본은 연골아세포형 골육종으로 진단하였다. 다발성 섬유성 이형성증에서 속발한 연골아세포형 골육종을 저악성도 연골육종으로 오진하여 치료방침에 오류가 있었던 1례를 문헌고찰과 함께 보고하는 바이다.

• 대한골관절종양학회지
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• 제15권2호
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• pp.155-159
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• 2009

투명세포연골육종은 모든 연골육종의 2%를 차지하는 매우 드문 저등급성 종양이다. 주로 긴뼈의 뼈끝에서 발생하며 대퇴골과 상완골의 근위부에서 가장 흔하고, 견갑골을 포함한 납작뼈에는 드물다. 25-50세 사이의 연령에서 호발하며, 20세 이전의 발생은 흔치 않다. 조직학적으로 종양 세포는 소엽상 무리를 지어 관찰되며, 투명하고 풍부한 세포질을 특징적으로 가진다. 저자들은 8세 여아의 견갑골에서 발생된 투명세포연골육종을 보고하고자 한다.

• Clinics in Shoulder and Elbow
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• 제18권2호
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• pp.61-67
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• 2015

Background: The purposes of the study were to examine rotator cuff tendon degeneration with respect to harvesting location, to determine a rationale for debridement of the torn end, and thus, to determine adequate debridement extent. Methods: Twenty-four patients with a full-thickness rotator cuff tear were included in the study. Tendon specimens were harvested during arthroscopic rotator cuff repair from three locations; from torn ends after minimal regularization of fraying (native end group, NE group), from torn ends after complete freshening of the frayed end (freshened end group, FE group), and from the macroscopically intact portion just distal to the musculotendinous junction (musculotendinous junction group, MTJ group). Control samples were harvested from patients admitted for surgery for proximal humerus fracture. Harvested samples were evaluated using a semi-quantitative grading scale. Results: Mean total degeneration scores in the NE group ($13.3{\pm}3.21$), the FE group ($12.5{\pm}2.30$), and in the MTJ group ($10.8{\pm}3.10$) were significantly higher than those in the normal control group ($5.0{\pm}2.87$; all p<0.001). Mean total degeneration score in the NE group was significantly higher than that in the MTJ group (p=0.012), but was not from that of the FE group. Mean total degeneration score in the FE group was not significantly different from that of the MTJ group. Conclusions: Tendon degeneration exists throughout the entire tendon to the macroscopically intact portion of full-thickness rotator cuff tear. Therefore, aggressive debridement to grossly normal appearing, bleeding tendon is unnecessary for enhancing healing after repair.

• Clinics in Shoulder and Elbow
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• 제23권3호
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• pp.144-151
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• 2020

Background: This study was designed to evaluate characters of the rotator cuff tear (RCT) recognized after primary shoulder dislocation in patients older than 40. Methods: From 2008 to 2019, patients who visited two hospitals after dislocation were retrospectively reviewed. Inclusion criteria were patients over 40 who had dislocation, with magnetic resonance imaging (MRI) undergone. Exclusion criteria were patients who lost to follow-up, combined with any proximal humerus fracture, brachial plexus injury, and previous operation or dislocation history in the ipsilateral shoulder. Also patients who had only bankart or bony bakart lesion in MRI were excluded. We evaluated RCTs that were recognized by MRI after the primary shoulder dislocation with regard to tear size, degree, involved tendons, fatty degeneration, the age when the first dislocation occurred, and the duration until the MRI was evaluated after the dislocation. Results: Fifty-five RCTs were included. According to age groups, the tear size was increased in coronal and sagittal direction, the number of involved tendons was increased, and the degree of fatty degeneration was advanced in infraspinatus muscle. Thirty-two cases (58.2%) conducted MRI after 3 weeks from the first shoulder dislocation event. This group showed that the retraction size of the coronal plane was increased significantly and the fatty accumulation of the supraspinatus muscle had progressed significantly. Conclusions: Age is also a strong factor to affect the feature of RCT after the shoulder dislocation in patients over 40. And the delay of the MRI may deteriorate the degree of tear size and fatty degeneration.

• Clinics in Shoulder and Elbow
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• 제21권4호
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• pp.179-185
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• 2018

Background: We analyzed the angle between the glenoid anterior surface and glenoid axis, the range of the glenoid apex and the location of the glenoid apex for assistance during shoulder surgery. Methods: Sixty-two patients underwent a computed tomography of the shoulder with a proximal humerus fracture. In the range of the glenoid apex, the ratios of the distribution of triangles with a Constant anterior and posterior area of the glenoid were measured. The location of glenoid apex was confirmed as the percentage of the position with respect to the upper part of the glenoid with the center of the part, analyzed the angle between the glenoid anterior surface and glenoid axis was measured. Results: The angle between the glenoid anterior surface and glenoid axis was $19.80^{\circ}{\pm}3.88^{\circ}$. The location of the glenoid apex is $60.36%{\pm}9.31%$, with the upper end of the glenoid as the reference. The range of the glenoid apex was $21.16%{\pm}4.98%$. When the height of the glenoid becomes smaller, the range of the glenoid apex tends to become larger (p=0.001) and the range of the glenoid apex becomes wider (p=0.001) as the glenoid width narrows. Conclusions: We believe the anatomical measurements of the glenoid will be helpful for a more accurate insertion in glenoid component. It is thought that more accurate insertion is possible if we can set other anatomical measurements using computed tomography imaging of the glenoid which can develop into the study of other anatomical measurements.

• Clinics in Shoulder and Elbow
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• 제25권4호
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• pp.304-310
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• 2022

Background: The Boileau classification distinguishes three surgical neck fracture patterns: types A, B, and C. However, the reproducibility of this classification on plain radiographs is unclear. Therefore, we questioned what the interobserver agreement and accuracy of displaced surgical neck fracture patterns is categorized according to the modified Boileau classification. Does the reliability to recognize these fracture patterns differ between orthopedic residents and attending surgeons? Methods: This interobserver study consisted of a randomly retrieved series of 30 plain radiographs representing clinical practice in a level 1 and a level 2 trauma center. Radiographs were included from patients (≥18 years) who sustained an isolated displaced surgical neck fracture if they were taken ≤1 week after initial injury. A ground truth was established by consensus among three senior orthopedic surgeons. All images were assessed by 17 orthopedic residents and 17 attending orthopedic trauma surgeons. Results: Agreement for the modified Boileau classification was fair (κ=0.37; 95% confidence interval [CI], 0.36-0.38) with an accuracy of 62% (95% CI, 57%-66%). Comparison of interobserver variability between residents and attending surgeons revealed a significant but clinically irrelevant difference in favor of attending surgeons (0.34 vs. 0.39, respectively, Δκ=0.05, 95% CI, 0.02-0.07). Conclusions: The modified Boileau classification yields a low interobserver agreement with an unsatisfactory accuracy in a panel of orthopedic residents and attending surgeons. This supports the hypothesis that surgical neck fractures are challenging to categorize and that this classification should not be used to determine prognosis if only plain radiographs are available.

• 대한골관절종양학회지
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• 제8권3호
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• pp.96-105
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• 2002

목적: 견관절 주위 원발성 골 종양 환자에서 시행한 사지 구제술의 종양학적, 기능적 결과를 평가하고자 하였다. 대상 및 방법: 1982년에서 2001년 사이에 견관절 주위 원발성 골 종양으로 본원에서 사지 구제술을 시행 받은 환자 중 추시 관찰이 가능한 2 9명을 대상으로 하였다. 평균 연령은 35세, 평균 추시 기간은 7년 1개월(1년 2개월~19년 9개월)이었고, 골육종 7예, 연골육종 14예, 방골성 골육종 1예, 혈관외피종 1예, 거대세포종 6예였다. 사지 구제술의 방법으로는 시멘트 충전술을 7예에서, 시멘트 주형 관절성형술 및 골수강내 정 삽입술을 10예에서, 종양 대치물 삽입술을 7예에서 이용하였으며, 5예에서는 절제만 시행하거나, 골이식, 관절 유합술 등을 실시하였다. 술 후 기능 평가는 근골격계 종양 학회(Musculoskeletal Tumor Society)의 상지 근골격계 종양 환자 기능 평가 방법을 이용하였다. 결과: 추시 도중 6예에서 국소 재발 하였고, 2예에서 폐 전이로 재발 하였고, 2예에서는 국소 재발과 폐전이가 모두 있었으며 3명이 사망하였다. 구제된 상지의 생존율은 최종 추시상 88.6%였으며, 재발이나 전이가 있을 경우 열등한 사지의 생존율을 보였다(p=0.012). 근골격계 종양 학회 기능 평가상 구제된 상지의 기능 점수는 평균 80%(24점, 18~30점)였다. 치료방법에 따른 기능 점수는 시멘트 충전술 86%, 시멘트 주형 관절성형술 및 골수강내 정 삽입술 71%, 종양 대치물 삽입술 83%점으로 시멘트 주형 관절성형술 및 골수강내 정 삽입술이 통계적으로 유의하게 좋지 않은 결과를 보여주었다(p=0.034). 합병증으로 요골 신경 마비와 액와 신경 마비가 각각 1예 있었으며, 생 비골 이식편의 이탈로 재수술을 받은 경우가 1예, 창상 감염이 1예 있었다. 결론: 견관절 주위 악성 골 종양과 거대 세포종의 치료에 있어서, 사지 구제술은 종양학적, 기능적으로 만족할 만한 결과를 얻을 수 있는 방법으로 사료된다.