• Journal of radiological science and technology
• /
• v.37 no.3
• /
• pp.203-209
• /
• 2014

Usefulness and clinical availability for surgery efficiency were evaluated by conducting pre-operative planning with a model manufactured by desktop 3D printer by using clavicle CT image. The patient-customized clavicle fracture model was manufactured by desktop 3D printer of FDM wire laminated processing method by converting the CT image into STL file in Open Source DICOM Viewer Osirix. Also, the model of the original shape before damaged was restored and manufactured by Mirror technique based on STL file of not fractured clavicle of the other side by using the symmetry feature of the human body. For the model, the position and size, degree of the fracture was equally printed out. Using the clavicle model directly manufactured with low cost and less time in Department of Radiology is considered to be useful because it can reduce secondary damage during surgery and increase surgery efficiency with Minimal invasive percutaneous plate osteosynthesis(MIPO).

• Clinics in Shoulder and Elbow
• /
• v.12 no.2
• /
• pp.240-244
• /
• 2009

Purpose: This study examined the outcomes of closed reduction and fixation of the coracoid process fracture using a suture anchor in a patient with combined acromioclavicular dislocation for which the coraco-clavicular ligament was intact. Materials and Methods: A 26 year-old male patient with a coracoid process fracture that was associated with a type III acromioclavicular joint dislocation was operated on with anchor suture fixation. This is the first trial of this operative procedure. Results: At the postoperative follow-up at 3 months, complete union of the coracoid process fracture was seen. The shoulder had a full range of motion and the shoulder function was normal. Conclusion: Closed reduction and fixation using one suture anchor for treating coracoid process fracture is a safe, effective procedure.

• Journal of Korean Orthopaedic Sports Medicine
• /
• v.5 no.1
• /
• pp.58-62
• /
• 2006

Purpose: To evaluate the result of operative treatment with plate and wire fixation for fractures of the distal clavicle. Materials and Methods: We assessed 9 cases of fractures of the distal clavicle that were treated by plate and wire fixation from March 2001 to July 2003 and followed up over 1year. We used the reconstruction plate as a buttress and performed cerclage wiring to fix comminuted fracture site. The functional result of shoulder was evaluated by the scoring system of Rowe. Results: The average periods of bony union was 9 weeks in all cases. According to Rowe scoring system, the functional result was exellent in 7 cases and good in 2 cases. There was no LOM of shoulder and traumatic arthritis in AC joint. But there was skin irritation in 1 case. Conclusion : The operative method by reconstruction plate and wire fixation for distal clavicular fracture was useful when there were comminuted fracture. This method seems to be simple and satisfactory in terms of improvement of range of motion of shoulder, restoration of function and rare complication.

• Clinics in Shoulder and Elbow
• /
• v.13 no.1
• /
• pp.27-33
• /
• 2010

Purpose: Most clavicular fractures can be healed by conservative treatment, although there are many factors that influence healing. The aim of the present study was to analyze factors that influence (i) bone union of midshaft fractures of the clavicle treated conservatively and (ii) bone functioning, after union. The long-term goal was to determine which treatments are adequate. Materials and Methods: We evaluated factors that have an effect on bone union and bone function after union. We evaluated age, fracture site, comminution, displacement, shortening and other factors. Among 523 clavicular midshaft fractures that presented between January 2004 and Jun 2009 at our Department of Orthopaedic Surgery, we identified 270 who had conservative treatment and 173 patients who had surgical treatment. Results: The period required for bone union increased with the degree of displacement. For the group below 12 years of age, and the group without comminution, it took half the time to achieve bone union compared with the other groups. Displacement mostly occurred within 2 weeks after conservative treatment. Conclusion: In patients with a comminuted clavicular midshaft fracture, we might, because of expected delays in bone union, delay the start of rehabilitation until patients are more than 13 years old. Because the degree of displacement may be increased within 2 weeks during conservative treatment, we can think about surgical treatments.

• Journal of the korean academy of Pediatric Dentistry
• /
• v.36 no.3
• /
• pp.456-463
• /
• 2009

Cleidocranial dysplasia(CCD) is a congenital disorder of skeletal and dental abnormality, which is a mesodermal dysfunction influencing many tisssues and organs. Skeletal abnormalities in CCD are delayed closure of cranial suture and fontanelle, presence of wormian bone and clavicle aplasia. CCD also has an effect on long bones, phalanges, spine, pelvis, muscles, and central nervous system. Dental manifestations include retention of deciduous teeth, multiple supernumerary teeth, delayed eruption or impaction of permanent teeth and formation of cysts around nonerupted teeth. However, due to lack of any substansive medical or physical disability, diagnosis is often late, thereby causing masticatory and psychological problems caused by delayed eruption of permanent teeth after exfoliation of deciduous teeth. For this reason, CCD requires early diagnosis, and the patient's appearance must be improved. Also, provision for a functional masticatiory mechanism by treatment of surgical removal of supernumerary teeth followed by orthodontic eruption of the natural permanent teeth at an adequate time is necessary.

• Clinics in Shoulder and Elbow
• /
• v.11 no.1
• /
• pp.41-45
• /
• 2008

Purpose: To review the clinical and radiological results after an open reduction and internal fixation with a T-shaped LCP for unstable distal clavicle fractures. Materials and Methods: From February 2005 to June 2006, ten patients with distal clavicle Neer type II fractures were treated with an open reduction and internal fixation with a T-shaped LCP. Bony union was identified by plain radiography. The clinical results were analyzed according to the UCLA scoring system. Results: The mean time to fracture union was 9weeks and union was achieved in all cases. The mean UCLA score was 33.4 (30-35); excellent in 8 cases and good in 2 cases. In one case, loosening of one distal screw was occured and mild AC joint subluxation was observed in another case. Conclusion: 3.5 mm T-shaped LCP fixation is a useful technique for treating unstable distal clavicle fractures. This procedure provide stable fixation with no further AC joint injury.

• Journal of the korean academy of Pediatric Dentistry
• /
• v.32 no.4
• /
• pp.703-708
• /
• 2005

Cleidocranial Dysplasia(CCD) is a congenital disorder of skeletal and dental anomaly with an autosomal dominant mode of inheritance. CCD Shows a generalized defect in intramembranous bones, such as the skull, clavicles, and endochondral bones, such as the long bones and the remainder of the skeleton. The specific clinical feature of CCD is an aplasia & hypoplasia of one or both clavicles, frontal & parietal bone bossing, incomplete fontanels and sutures closure of cranial bone. Generally, relative mandibular prognathism is seen, because maxillar is underdeveloped. Dental anomalies of CCD are prolonged primary teeth, delayed eruption of the permanent teeth and multiple supernumerary teeth. Almost patients of CCD can not recognize their dental abnormality until the permanent teeth eruption was begining. So it is difficult to decide the proper timing of the treatment of patients of CCD. Pedodontists should understand the development of the dentition in CCD patient and start the treatment of CCD patient in proper time.

• The Journal of the Korean bone and joint tumor society
• /
• v.12 no.2
• /
• pp.103-111
• /
• 2006

Purpose: Sternocostoclavicular hyperostosis (SCCH) is a disease of unknown etiology, which is characterized by periosteal reaction and endosteal hyperossification of the sternum, clavicles and upper ribs as well as ossification of the surrounding soft tissue. SCCH is a well recognized but uncommon condition which is important differential diagnosis to consider to avoid misdiagnosis and to differentiate the condition from malignant process. But few studies have reported long-term clinical result of SCCH. We report long-term clinical result of SCCH. Materials and Methods: From 1986 to 2000, 17 cases of SCCH were followed up over two to 14 years. We evaluated the radiologic, pathologic and clinical results. Results: Four men and thirteen women were studied. The age when first symptom appeared were raged from17 to 60(average-48.7) There are no specific bacteriological, serological or histological finding. Usually a permanent increase in the erythrocyte sedimentation rate is found. The radiological examination showed the signs of proliferate destructive arthritis in most case. The majority of patients respond to NSAIDs and antibiotics. Conclusion: Sternocostoclavicular hyperostosis is uncommon benign condition, but important condition in the differential diagnosis of inflammatory or malignant process of this joint.

• Clinics in Shoulder and Elbow
• /
• v.12 no.2
• /
• pp.167-172
• /
• 2009

Purpose: We wanted to evaluate the results of treating acromioclavicular joint dislocation using an AO hook plate. Materials and Methods: Between February 2008 and September 2009, 10 patients underwent implant removal after surgical treatment of acromioclavicular joint dislocation using a AO hook plate. The Constant-Murley scoring system was administered postoperatively for evaluating the clinical results, and simple X-ray was taken for evaluating the state of reduction. Results: All cases showed satisfactory results on the clinical and radiological study. The mean Constant-Murley score at follow-up was 90.5 (range: 84~95). Three patients had some degree of discomfort with the hook plate, but these symptoms were relieved on removal of the plate. The radiological evaluation showed restoration of the vertical displacement of the clavicle in all the patients. No complications occurred such as infection, plate failure or redislocation after removal of the plate. Conclusion: The short term follow-up results of treating acromioclvicular joint dislocation using an AO hook plate were satisfactory both clinically and radiologically.

• Clinics in Shoulder and Elbow
• /
• v.10 no.2
• /
• pp.220-226
• /
• 2007

Purpose: The distal clavicle has a biomechanical structure different from that of the proximal or middle 1/3 clavicle, and delayed union or nonunion occurs frequently in a distal clavicle fracture. The authors obtained favorable results from an open reduction and bone grafting of the distal clavicle nonunion. We report the results together with review of the relevant literature. Materials and Methods: The subjects were 8 patients(average age, 38.9) who had undergone surgery for distal clavicle nonunion from August 2003 to May 2006. Nonunion occurred after surgical treatment in 4 cases, and after conservative treatment in the other 4. In all cases, the patients complained of pain. Results: The mean follow-up duration was 14 months, and radiological union was observed in 8 weeks on average. In all cases, the range of shoulder joint motion was normal at the end of the follow-up observation. In the functional evaluation, 7 cases showed excellent results and 1 case showed good results. Conclusion: Surgical treatment is a safe and reliable treatment for distal clavicle fracture nonunion because it can achieve early rehabilitation and union.