• Clinics in Shoulder and Elbow
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• 제25권4호
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• pp.282-287
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• 2022

Background: Muscular forces drive proximal humeral fracture deformity, yet it is unknown if arm position can help mitigate such forces. Our hypothesis was that glenohumeral abduction and humeral internal rotation decrease the pull of the supraspinatus and subscapularis muscles, minimizing varus fracture deformity. Methods: A medial wedge osteotomy was performed in eight cadaveric shoulders to simulate a two-part fracture. The specimens were tested on a custom shoulder testing system. Humeral head varus was measured following physiologic muscle loading at neutral and 20° humeral internal rotation at both 0° and 20° glenohumeral abduction. Results: There was a significant decrease in varus deformity caused by the subscapularis (p<0.05) at 20° abduction. Significantly increasing humeral internal rotation decreased varus deformity caused by the subscapularis (p<0.05) at both abduction angles and that caused by the supraspinatus (p<0.05) and infraspinatus (p<0.05) at 0° abduction only. Conclusions: Postoperative shoulder abduction and internal rotation can be protective against varus failure following proximal humeral fracture fixation as these positions decrease tension on the supraspinatus and subscapularis muscles. Use of a resting sling that places the shoulder in this position should be considered.

• Clinics in Shoulder and Elbow
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• 제11권1호
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• pp.62-65
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• 2008

견갑골의 견봉에서 일어나는 골절은 오구돌기, 관절와와 같은 다른 견갑골 부위의 골절과 동반되거나 견봉쇄골 관절 탈구와 동반되는 경우가 흔하며, 이들 대부분의 골절은 전위가 많지 않아 보존적인 방법으로 치료가 가능하다. 저자들은 견갑부 주위 골절의 동반 없이 단독으로 견봉 후외측부위에 골절 및 전위가 있는 환자에서 유관나사 및 K-강선을 이용한 내고정으로 좋은 기능적 결과를 경험하였기에 견봉 골절 내고정을 위한 술기적 특징 및 문헌적 고찰을 보고하고자 한다.

• Clinics in Shoulder and Elbow
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• 제19권3호
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• pp.143-148
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• 2016

Background: The purpose of our study was to evaluate the accuracy of reduction based on postoperative computed tomography (CT) images after arthroscopic stabilization using tightrope system for unstable distal clavicle fracture. Methods: Twelve patients with distal clavicle fracture combined with coracoclavicular (CC) ligament injury (type II, V) who received arthroscopically assisted fixation using a flip button device were evaluated for accuracy of reduction using 3-dimensional postoperative CT scan by measuring the degree of distal clavicular angulation and clavicular shortening. Results: Immediate postoperative plain radiograph confirmed restoration of the CC distance (CCD) in 10 patients. At final follow-up, the CCD remained reduced anatomically on plain radiographs in these patients. All patients showed excessive posterior angulation and shortening compared to the opposite side. The average Constant score recovered to 94.8 at final follow-up. Conclusions: Indirect reduction and arthroscopic subacromial approach with flip button fixation of unstable distal clavicle fractures demonstrated favorable clinical results despite unavoidable posterior angulation of distal clavicle and shortening the total length of clavicle.

• Clinics in Shoulder and Elbow
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• 제17권4호
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• pp.201-204
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• 2014

Pulmonary embolism is a serious complication, which is well known in patients undergoing total hip or total knee arthroplasty or lower extremity fracture surgery. But, there are few literatures concerning pulmonary embolism after upper extremity surgery. Pulmonary embolism after minor upper extremity fracture surgery is extremely rare. We report a case of 66-year-old female patient that developed pulmonary embolism after percutaneous cannulated screw fixation for a greater tubercle fracture of the proximal humerus with literature review.

• 대한견주관절학회:학술대회논문집
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• 대한견주관절학회 2002년도 아시아견관절학술대회
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• pp.11-19
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• 2002

This prospective clinical study evaluates the 5-10 year results of the BiPolar shoulder Arthroplasty in patients with end-stage RotatorCuff Arthropathy. The study group consisted of 48 patients (59 shoulders). Average age was 72 years and average FU time was 73 months. Results showed that the average UCLA score went from 7.9 Pre-op to 23.3 Post-op. Final Constant score averaged $52\% (unadjusted). Pain relief using the VAS was 1.2(were 0=no pain. 15 = excruciating pain). ROM improved by an average of $20^\circ$. There were 2 reoperations because of periprosthetic fractures. Despite rather poor functional results, these patients were satisfied with their pain relief and the functional gains accompanying pain relief would be an added benefit.

• Clinics in Shoulder and Elbow
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• 제10권1호
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• pp.92-98
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• 2007

목적: 근위 상완골 골절의 치료 방법은 일반적으로 Neer 분류법에 의하고, 심하게 전위된 3분 골절 및 4분 골절의 경우 상완골두 치환술의 적응증이 된다. 저자들은 근위 상완골의 분쇄 골절로 인하여 상완골두 치환술을 시행 받고, 최소 1년 이상 추시 가능하였던 10례의 단기적 임상적 결과를 보고 하고자 한다. 대상 및 방법: 저자들은 1999년 7월부터 2005년 3월까지 상완골 근위부 골절로 상완골 두 치환술을 시행 받은 환자 중 최소 1년 이상 추시 가능 하였던 10명(10 견관절)의 환자를 대상으로 하였다. Neer 분류법에 의하면 5명은 3분 골절이었고, 나머지 5명은 4분 골절이었으며 외상 후 수술까지 소요 시간은 평균 6.1일 이었다. 남자 4명, 여자 6명이었고, 평균 연령은 67.4세(최소 56세, 최고 76세)였다. 술 후 견관절 기능은 Constant score와 SST(Simple shoulder test) 및 UCLA 평가법(modified UCLA score for hemiarthroplasty)을 이용하여 평가하였다. 결과: 최종 방문 시 Constant 점수는 평균 51.4(최저 34점, 최고 60점)점이었고, 변형된 SST의 경우는 12개 문항 중 평균 7.8개 문항이 가능하다고 하였다. 수상 당시 액와동맥 파열 및 상완신경총 손상이 있었던 1예를 제외한 경우 Constant score는 평균 53.5(최저 44점, 최고 60점)점 이었고, SST의 경우는 12개 문항 중 평균 7.2($1{\sim}8$)개 문항이 가능하다고 하였다. 최종 추시 UCLA score는 동통, 기능성, 근력 및 운동 범위 항목 각각이 평균은 8.2($6{\sim}10$)점, 6.6($2{\sim}8$)점, 6.9($4{\sim}8$)점 이었고, 총점 21.7($12{\sim}26$)점 이었다. UCLA 평가법에 의한 결과는 우수 3예, 양호 6예, 불량 1예 이었고 불량의 경우는 혈관 및 신경 손상이 있었던 1예 이었다. 환자의 주관적 만족도는 10명의 환자 중 2명의 환자는 흡족, 7명의 환자는 양호한 결과라고 하였으나, 1명의 경우는 불만이었다. 결론: 단기 추시 결과이지만, 상완골 두 치환술은 관혈적 정복술이 어려운 상완골 근위부 골절에있어서 일차적 치료방법이라고 생각된다. 상완골 두 치환술은 고령의 환자에게 있어서 강직을 예방할 수 있고 일상적인 생활이 가능하도록 하는 수술 방법이나, 관절운동 범위 및 근력의 회복은 충분하지 않았다.

• Journal of Trauma and Injury
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• 제18권1호
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• pp.41-46
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• 2005

Background: We evaluated the clinical and the radiological results of treatment for humeral shaft fractures by using an antegrade intramedullary nail. Methods: Thirty-nine (39) cases of humeral shaft fractures treated with antegrade intramedullary nail were evaluated. Bone union was evaluated with simple radiographic findings, and a functional evaluation was done using the American Shoulder and Elbow Surgeons (ASES) score. Results: The average duration until union was 14.1 weeks. On the functional evaluation using the ASES score, 15 cases were excellent, 19 cases good, 3 cases fair, and 2 cases poor. Conclusion: We conclude that antegrade intramedullary nailing has a good clinical and radiological result for treatment of humeral shaft fractures.

• 대한정형외과스포츠의학회지
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• 제5권1호
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• pp.63-68
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• 2006

목적: 전위성 쇄골 간부 골절의 치료로 관혈적 정복술 후 LCP를 사용하여 내고정을 시행한 환자를 대상으로 방사선학적, 임상적 결과를 분석하여 전위성 쇄골 간부 골절의 치료에 있어서 LCP의 유용성을 알아보고자 하였다. 대상 및 방법: 2003년 5월부터 2004년 11월까지 본원에서 쇄골 간부 골절에 대해 LCP를 이용한 관혈적 정복, 금속내 고정술을 시행하고 6개월 이상 추시가 가능하였던 26례를 대상으로 하였다. 수술 후 최종 평가는 방사선 결과와 fang s criteria를 이용한 임상적 결과로 분석하였다. 결과: 수술 후 평균 9.3주에 모든 예에서 지연유합 없이 골유합 되었으며 임상적으로 Kangs criteria에 따라 구분한 결과, 우수 이 상이 22례로 나타났다. 특히, 견관절 운동은 상완골 골절이 동반된 두 경우를 제외한 24례에서 2.9주내에 정상 범위로 빠른 회복을 보였다. 합병증으로는 견관절 운동 장애 2례, 수술 절개 부위의 켈로이드 형성 1례였으며 그 이외에 다른 주요 합병증은 없었다. 결론: 전위성 쇄골 간부 골절에서 LCP를 이용한 관혈적 정복 및 금속내 고정술은 기존의 금속판에 비해 수술 후 합병증을 줄이고 효과적인 골유합과 조기 견관절 운동에 도움을 줄 수 있는 좋은 치료 방법 중 하나라고 사료된다.

• Clinics in Shoulder and Elbow
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• 제20권4호
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• pp.208-216
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• 2017

Background: This study compared the clinical and radiological outcomes of the single calcar screw plate and Polarus nail techniques for the treatment of the proximal humerus fractures. Methods: Seventy-two patients diagnosed with displaced proximal humerus fracture were enrolled for the study. Of these, 50 patients underwent the locking plate surgery with a single calcar screw (plate group), whereas 22 patients underwent the Polarus nail surgery (nail group). The plate group was further divided into plate 1 group (with medial support), and plate 2 group (without medial support). The radiological and functional results of both groups were compared to the nail group. Results: The ${\alpha}$ angle 1 year after surgery was significantly different between plate 1 and plate 2, and plate 2 and nail groups (p=0.041, p=0.043, respectively). The ratio that does not satisfy the reference value of ${\gamma}$ angle was 2.8% in plate 1, 7.1% in plate 2 and 22.7% in nail group (p=0.007); there was a significant difference between plate 1 and nail group, and plate 2 and nail group (p=0.014, p=0.033, respectively). Conclusions: No significant differences were observed in the clinical results between locking plate and Polarus nail. However, in the plate 2 group and nail group, the rate of failure to maintain reduction during the 1-year period after surgery was statistically and significantly higher than the plate 1 group (level of evidence: level IV, case series, treatment study).

• Clinics in Shoulder and Elbow
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• 제22권1호
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• pp.29-36
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• 2019

Background: The execution of fibular allograft augmentation in unstable proximal humerus fractures (PHFs) was technically demanding. In this study, the authors evaluated the clinical and radiographic outcomes after tricortical iliac allograft (TIA) augmentation in PHFs. Methods: We retrospectively assessed 38 PHF patients treated with locking-plate fixation and TIA augmentation. Insertion of a TIA was indicated when an unstable PHF showed a large cavitary defect and poor medial column support after open reduction, regardless of the presence of medial cortical comminution in preoperative images. Radiographic imaging parameters (humeral head height, HHH; humeral neck-shaft angle, HNSA; head mediolateral offset, HMLO; and status of the union), Constant score, and range of motion were evaluated. Patients were grouped according to whether the medial column support after open reduction was poor or not (groups A and B, respectively); clinical outcomes were compared for all parameters. Results: All fractures healed radiologically (average duration to complete union, 5.8 months). At final evaluation, the average Constant score was 73 points and the mean active forward flexion was $148^{\circ}$. Based on the Paavolainen assessment method, 33 patients had good results and 5 patients showed fair results. The mean loss of reduction was 1.32 mm in HHH and 5.02% in HMLO. None of the parameters evaluated showed a statistically significant difference between the two groups (poor and not poor medial column support). Conclusions: In unstable PHFs, TIA augmentation can provide good clinical and radiological results when there are poor medial column support and a large cavitary defect after open reduction.