1.Treatment of Acute Acromioclavicular Joint Dislocation: Kirschner's Wire Trans-acromial Fixation versus AO Locking Hook Plate Fixation.
Clinics in Shoulder and Elbow 2016;19(3):149-154
BACKGROUND: The purpose of this study is to compare clinical and radiological outcomes between trans-acromial fixation with Kirschner's wire (K-wire) and AO locking hook plate fixation for acute acromioclavicular (AC) joint dislocation. METHODS: This study included 61 patients who underwent either closed reduction and trans-acromial fixation with K-wire (group A, 23 patients) or open reduction and internal fixation with AO locking hook plate (group B, 38 patients). Pain on a visual analogue scale (VAS) score, the University of California Los Angeles (UCLA) shoulder score, the American Shoulder and Elbow Surgeons (ASES) score, and active range of motion (ROM) were used in the functional evaluation. For radiological evaluation, coracoclavicular distance (CCD) was measured on both clavicular anteroposterior view and compared between groups. RESULTS: At one-year follow-up, no significant differences in VAS pain score, UCLA shoulder score, ASES score, and active ROM were observed between groups, despite five cases (22.7%, 5/23) of complication in group A. The side-to-side difference between normal and affected CCD was 2.4 ± 2.2 mm in group A and 0.2 ± 0.7 mm in group B. This difference showed a statistical significance between groups (p<0.001). CONCLUSIONS: For the treatment of acute AC joint dislocation, the K-wire trans-acromial fixation group showed a significantly greater CCD than the AO locking hook plate group. In addition, during the follow-up period, much higher incidence of complication related to implant was observed in the trans-acromial fixation group. Although clinical outcomes between groups were not significantly different, these results should be interpreted carefully.
Acromioclavicular Joint*
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California
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Dislocations*
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Elbow
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Follow-Up Studies
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Humans
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Incidence
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Joints
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Range of Motion, Articular
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Shoulder
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Surgeons
2.Leg Length Equalization by Correction of Pelvic Obliquity and Acetabular Dysplasia
Duk Yong LEE ; Yong Hoon KIM ; Kyu Chun HWANG
The Journal of the Korean Orthopaedic Association 1982;17(6):1137-1148
Fixed pelvic obliquity refers to a composite deformity induced by contractures both above and below the pelvis and the elements of this deformity are frequently interrelated during the period of growth. From the functional standpoint, leg length discrepancy is caused by deformities of the pelvis and lower extremities, such as pelvic obliquity and acetabular dysplasia, as well as by inequality of true limb bone length, and these deformities either aggravate or compensate functional discrepancy. During fhe fourteen years period, from August 1968 to August 1982, at the Department of Orthopaedic Surgery, Seoul National University Hospital, we treated 35 cases of fixed pelvic obliquity and acetabular dysplasia associated with true or functional limb length discrepancy by means of lumbodorsal fasciotomy or pelvic osteotomies such as Salters innominate osteotomy or Steels triple osteotomy, combined, if necessary, with contralateral abductor fasciotomy to gain functional limb length as well as to improve posture and balance. In many cases of residual poliomyelitis, epiphysiodesis was also performed when indicated. These cases were reviewed and following observations were made: 1. Of the 35 cases, residual poliomyelitis with 29 cases (83%) was by far the main cause of leg length discrepancy. Cerebral palsy (2cases), Legg-Perthes disease (2 cases), and fibrous ankylosis secondary to septic hip (2 cases) comprised the remainder. 2. The male-to-female ratio was about equal, being 17 to 18. 3. The average age at the time of operation was 17.9 years, the youngest being 7 years and the oldest being 30 years. The average age at the time of current follow-up was 18.8 years. 67% of those followed was skeletally mature. 4. An average of 1.35cm of bone length was gained radiographically by pelvic osteotomies. Steels triple osteotomy was more effective in gain than Salters innominate osteotomy. 5. An average of 2.43cm of functional length when standing was gained radiographically by lumbodorsal fasciotomy alone. 6. An average of 2.61cm of functional length when standing was gained radiographically by lumbodorsal fasciotomy and combined contralateral Soutters or Campbells fasciotomy. 7. An average of 3.57cm of functional length when standing was gained radiographically by lumbodorsal fasciotomy and combined ipsilateral Steel's triple osteotomy. 8. An average of 1.73cm of functional lengthening when standing was corrected radiographically by ipsilateral Soutter's fasciotomy. 9. When lumbodorsal fasciotomy and Steel's triple osteotomy were combined with contralateral Soutter's or Campbell's fasciotomy, the average radiographic gain in standing length was 3.77cm. 10. Leg length discrepancy in terms of true bone length is conventionally corrected either by epiphysiodesis or bone shortening on the longer limb, or by bone lengthening on the shorter limb. We believe that when leg length discrepancy is associated with fixed pelvic obliquity, frequently aggravating the disability functionally, lumbodorsal fasciotomy and/or pelvic osteotomies on the shorter side and, combined if necessary, Soutters or Campbells fasciotomy on the longer side, can, in many instances, successfully correct or reduce functional limb discrepancy and improve balance, posture and function. Any residual discrepancy, true or functional, may then be corrected by conventional methods.
Acetabulum
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Ankylosis
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Bone Lengthening
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Cerebral Palsy
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Congenital Abnormalities
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Contracture
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Extremities
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Follow-Up Studies
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Hip
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Leg
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Legg-Calve-Perthes Disease
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Lower Extremity
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Osteotomy
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Pelvis
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Poliomyelitis
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Posture
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Seoul
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Socioeconomic Factors
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Steel
3.Home Treatment of Rotator Cuff Disease.
Jae Myeung CHUN ; Byeong Choel KIM ; Key Yong KIM
The Journal of the Korean Orthopaedic Association 1998;33(7):1803-1810
We treated 617 patients who were diagnosed as rotator cuff disease at the Department of Orthopaedic Surgery, Asan Medical Center in Korea between March, 1995 and December, 1996. We evaluated 175 cases who were followed up over five months and were treated according to our home treatment protocol. Average follow-up period was eleven months(range, five to eighteen months). We educated every patient who were not suspected of having full thickness tear of the rotator cuff based on clinical and MRI findings. According to patients condition, we treated them with both stretching and strengthening exercise or strengthening exercise only. This physician-directed home treatment was occasionally supported by the use of NSAID in case severe pain. Patients did stretching and strengthening exercise in 93(53%)cases, and strengthening exercise initially in 82(47%)cases. One hundred and forty five(83%) cases had satisfactory results. Home treatment of the rotator cuff disease is effective, convenient and not dangerous. We recommend this physiciandirected home treatment for primary management of almost all the patient with rotator cuff disease except full thickness tear of the rotator cuff tendon.
Chungcheongnam-do
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Clinical Protocols
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Follow-Up Studies
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Humans
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Korea
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Magnetic Resonance Imaging
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Rotator Cuff*
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Tendons
4.Prosthetic Replacement of the Hip
Key Yong KIM ; Young Tae KIM ; Shi Wook CHUN
The Journal of the Korean Orthopaedic Association 1982;17(2):345-354
Prosthetic replacement was performed in 31 patients (32 cases) with femoral neck fractures at National Medical Center from 1968 to 1981. We reviewed the records of 28 patients having Austin-Moore prosthetic arthroplasty in 29 cases, and of 3 patients having Thompson prosthetic arthroplasty; then obtained following results. l. Of the 31 patients, 23 were female and 8 were male. The left hip was involved in 20 patients, right in 10, and the both sides in one. 2. The age range was between 35 and 84 years, with the average age of 61.2 years. 74.2% of patients were older than 51 years of age. 3. The most common cause of fracture was slipping or fall (65.6%), and the fracture sites were subcapital in 11 (34.4%), transcervical in 12 (37.4%), and basilar in 3 (9.4%). 4. Three cases (9.4%) were operated within a week, and 21 cases (65.6%) more than 3 weeks after injury. Good results were obtained in fresh fracture which was operated within a week. 5. In comparing the blood loss in Moores and modified Gibson's surgical approaches, the average total loss by the former was 1,290 ml and 1,720 ml by the latter. 6. In complications, one case of fracture of the posterior rim of acetabulum with subsequent subluxation and two cases of fracture of the greater trochanter were notable as operative complicatiens. 7. In a follow-up study averaging 13.1 months, good to excellent results were obtained in 8 cases, fair in 6, poor or bad in 5, respectively.
Acetabulum
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Arthroplasty
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Female
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Femoral Neck Fractures
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Femur
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Femur Head
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Follow-Up Studies
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Hip
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Humans
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Male
5.New modified method ofsouthern blot to search for oncogene alteration in breast cancer.
Eung Chun KIM ; Ki Yong CHUNG ; Joong Shin KANG
Journal of the Korean Surgical Society 1991;41(3):289-298
No abstract available.
Breast Neoplasms*
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Breast*
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Oncogenes*
6.Desmoplastic Trichoepithelioma.
Chun Wook PARK ; Si Yong KIM ; Won HOUH
Korean Journal of Dermatology 1985;23(2):245-247
Desmoplastic trichoepithelioma, a tumor of hair follicle, is usually seen as solitary lesions. Its clinical configuration is hard and annular, asympromatic, white or yellowish and varied in size from 3 to 8 mm, but the appearance of these lesion is not so distinctive to hair follicle tumors that the diagnosis is estabilished by the histopathologic findings. Microscopical findings of desmoplastic trichoepithelioma consist of narrow strands of tumor cells, horn cyst, desmoplastic stroma. We present here a case of desmoplastic trichoepitheliorna, which develops as 6 mm sised papule on the left cheek in a 57-year-old woman.
Animals
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Cheek
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Diagnosis
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Female
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Hair Follicle
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Horns
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Humans
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Middle Aged
7.Characteristics of Magnetic Resonance(M.R.) and Comprehension of its Imaging Mechanism.
Jae Chun CHANG ; Mi Soo HWANG ; Son Yong KIM
Yeungnam University Journal of Medicine 1987;4(1):1-15
Magnetic resonance (MR) is rapidly emerging technique that provides high quality images and potentially provides much more diagnostic information than do conventional imaging modalities. MRI is conceptually quite different from currently used imaging methods. The complex nature of MRI allows a great deal of flexibility in image production and available information, and key points are as follows. 1. MR offers a non-invasive technique with which to generate in vivo human images without ionizing radiation and with no known adverse biological effects. 2. Imaging mechanism of MRI is quite different from conventional imaging modality and for more accurate diagnostic application, It is necessary for physician to understand imaging mechanism of MRI 3. M.R. makes available basic chemical parameters that may provide to be useful for diagnostic medical imaging and more specific pathophysiologic information which are not available by alternate techniques. 4. M.R. can be produced by number of different methods. This flexibility allows the imaging technique to be applicated for particular clinical purpose. Multiplanar and three dimensional imaging may extend the imaging process beyond the single section available with current CT. 5. Future directions include efforts to; a. Further development of hard ware b. More fastening scan time c. Respiratory and cardiac gated imaging d. Imaging of additional nuclei except hydrogen. e. Further development of contrast media f. MR in vivo spectroscopy g. Real time MR imaging
Comprehension*
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Contrast Media
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Diagnostic Imaging
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Humans
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Hydrogen
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Magnetic Resonance Imaging
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Pliability
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Radiation, Ionizing
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Spectrum Analysis
8.Rotator Cuff Repair Without Bony Trough.
Jae Myeung CHUN ; Jean CHOE ; Key Yong KIM
The Journal of the Korean Orthopaedic Association 1998;33(2):393-399
Surgical repair has been widely accepted for full thickness tear of the rotator cuff. In traditional method, hony trough on the greater tuberosity of the humerus has heen used for tendon to hone suture. Recently, there have been some suggestions that hony trough would not he essential for repairing the rotator cuff. Purpose of this study was to investigate the clinical result of rotator cuff repair without bony trough. We evaIuated the clinical results of 23 operative repairs of the full-thickness tear of the rotator cuff, using modified ASES scoring system, at an average of l4 months postoperatively. For these cases, all the tendon to hone sutures were done without makin bony trough. There were 3 cases of small tear. 14 case of medium tear, 1 case of large tear and 5 cases of massive tear. Mini-open repairs with arthroscopic acromioplaslies were used for 9 cases with small or medium sized tear. Open acromioplasties and repairs were done for 14 cases. Nine cases were rated excellent (39%), and twelve cases showed good results (52%). Two cases showed fair results (9%). Averagc increase of score was 40 (ranee, 18 to 78). There were no complications or deteriorations of function. No patient needed additional surgery. Repair without hony trough is more simple and easier than the traditional method making bony trough. There would he possibility of less tension to the tendons and preserving more natural course of tendons. The authors believe that this method provides larger contact surface between the tendon and hone. The repairing method without hony trough is considered to he a safe and efficient method for the full thickness tear of the rotator cuff. This technique can he useful not only for ordinary open repair, but also for mini-open repair.
Humans
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Humerus
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Rotator Cuff*
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Shoulder
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Sutures
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Tendons
9.Measurement of Proximal Humerus in Korean Adult Skeleton.
Jae Myeung CHUN ; Ewy Ryong CHUNG ; Key Yong KIM
The Journal of the Korean Orthopaedic Association 1999;34(1):219-226
PURPOSE: To obtain basic anatomical data of proximal humerus of Korean adult skeleton. MATERIALS AND METHODS: Fifty-two dry humeri of Korean adults were measured with a caliper and goniometer. Measured parameters were retroversion, angle of the bicipital groove, bicipital groove-shaft angle, neck-shaft angle, diameters of the humeral head, dimension of the greater tuberosity, distance between humeral head and greater tuberosity, and length of the humerus. All of the eight parameters were measured twice. The correlations between retroversion and diameters of the humeral head, retroversion and length of the humerus, retroversion and angle of the bicipital groove, diameters of the humeral head and length of the humerus were analyzed by student t-test using SAS system. RESULTS: Retroversion was 34.2 degree with high individual variation, ranging from 17.0 degree to 50.0 degree. The angle of the bicipital groove was 36.2 (22.0-54.0) degree. The bicipital groove-shaft angle was 7.4 (1.0- 16.0) degree. The neck-shaft angle was 136.3 (120.0-150.0) degree. The superior-inferior diameter of the humeral head was 43.3 (35.5-52.0) mm, and anterior-posterior diameter was 39.9 (33.5-46.0) mm. The dimension of the greater tuberosity was 29.8 (19.0-46.0) mm, and the distance between humeral head and greater tuberosity was 7.9 (4.5-12.0) mm. The length of the humerus was 303.7 (265.0-388.0) mm. There was significant correlation between the head diameters, the retroversion, and the length, but no correlation between the retroversion and the angle of the bicipital groove. CONCLUSIONS: It is suggested that high individual variation of retroversion should be considered in case of arthroplasty. The humeral head was elliptical in shape. The mean narrow diameter of the humeral head was about 40 mm. The greater tuberosity was about 30 mm in dimension, and located 8 mm inferior to the humeral head. The bicipital groove was not a reliable reference in determining retroversion.
Adult*
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Arthroplasty
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Head
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Humans
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Humeral Head
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Humerus*
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Skeleton*
10.Arthroscopic Fixation for Unstable SLAP Lesion Using Biodegradable Tack.
Yong Girl RHEE ; Young Kyu KIM ; Young Soo CHUN
The Journal of the Korean Orthopaedic Association 1998;33(3):508-514
Twenty six consecutive patients with superior labrum anterior to posterior (SLAP) lesions of the shoulder involving the hiceps attachment to the labrum were fixed with biodegradable tack through a new lateral portal arthroscopically and reviewed to evaluate the efficacy of the biodegradable tack tixation in the unstable SLAP lesion. The tack was placed at the posterosuperior aspect of biceps attachment and directed toward anteroinferior via lateral portal just lateral to the acromial margin. Mean follow up duration was 18 months (range, 8 to 27). According to Snyder s classification, 24 cases were type ll, 1 case was type III and 1 case was type IV. lsolated SLAP lesion was nine cases (35%,) in our series. Thirteen cases were associated with the unidirectional anterior instability, one case with the multidirectional instability, 2 cases with the full thickness tear of the rotator cuff and 1 case with the acromioclavicular injury. Preoperative scores increased postoperatively by using the American Shoulder and Elbow Society (ASES) evalualion system in all cases. ln isolated SLAP lesions, pain scores improved from 3.0 to 4.2, stability scores from 3.7 to 5.0, and function scores from 2.7 to 3.4. In associated SLAP lesions, pain scores improved from 3.2 to 4.2, stability scores from 3.5 to 4.8 and function scores from 3.1 to 3.9, Overall scores improved from 71 to 93 in associated SLAP lesions and improved from 67 to 90 in isolated lesions. Eiehteen patients(69%) achieved excellent results and 6 patients(23% ) ohtained good results. And there were no complications related to the use of biodegradable implant. Thus, arthroscopic fixation is recommendable in the management of the unstable SLAP lesions.
Absorbable Implants
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Classification
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Elbow
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Follow-Up Studies
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Humans
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Rotator Cuff
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Shoulder