• Journal of the Korean Arthroscopy Society
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• v.6 no.2
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• pp.171-176
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• 2002

Purpose : To evaluate effectiveness of arthroscopic distal clavicle resection for chronic stage 2 acromioclavicular dislocation. Material: 6 patients who had failed to respond to physical therapy were evaluate more than 6 months prospectively, which were treated with arthroscopic distal clavicular resection from february 1998 to January 2001. Result : The median preoperative Constant score changed from 32 of 100 to 37 of 100 at 3 to 6 weeks, to 49 of 100 at 3 months and to 69 of 100 at 6months. Improvement was achived at mean follow up more than 6 months after surgery. Overal $83\%$ of patient were satisfied with this procedure. but the remained case was unsatisfied because symptom was not improved more than 6 months Conclusion : Arthroscopic distal clavicle resection is useful method to treatment for chronic stage 2 acromioclavicular dislocation.

• Clinics in Shoulder and Elbow
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• v.10 no.1
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• pp.124-130
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• 2007

The acromioclavicular separation (AC separation) is a common injury, which is often accompanied by the rupture of the coracoclavicular ligament (CC ligament) in severe occasions. In rare forms of AC separation, the fracture of the coracoid process would occur rather than the rupture of the CC ligament. Only 31 cases of such injury have been reported in the English literature. We present 2 additional cases with literature review. The fracture of the coracoid process is not readily seen on anteroposterior shoulder radiograms. Severe AC separation without widening of CC distance on anteroposterior shoulder radiogram heralds the fracture of the coracoid process.

• Journal of the Korean Arthroscopy Society
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• v.15 no.1
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• pp.13-18
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• 2011

Purpose: The purpose of this study is to evaluate the radiologic and clinical results of the arthroscopic coracoclavicular fixation of the acute acromioclavicular dislocation using $TightRope^{(R)}$ (Arthrex, Inc, Naples, FL). Materials and Methods: We performed the arthroscopic coracoclavicular fixation using $TightRope^{(R)}$ in twenty patients with the Rockwood type III or V acute acromioclavicular dislocation between February, 2009, and February, 2010. Mean follow-up was 13.4(range 8~22) months. Radiologic results were evaluated by comparing the distances between the clavicle and the coracoid process with those in the contralateral sides using the acromioclavicular stress radiographs. Clinical results were made according to the KSS(Korean Shoulder Scoring System), and the cosmetic satisfaction of the patient was assessed. Results: Radiologically, 18 cases showed excellent, 1 case showed good and 1 case showed fair results. Clinically, KSS was mean 98.5 (range 92~100) points and all cases revealed satisfactory cosmetic results. Because one case complained of skin tenderness and discomfort of palpation, we closed the knot with surrounding muscle & fascia. Then local wound infection occurred, so we treated it by incision and drainage under local anesthesia and antibiotic therapy for 2 weeks. Conclusion: Arthroscopic coracoclavicular fixation using $TightRope^{(R)}$ for treating the Rockwood type III or V acute acromioclavicular dislocation showed satisfactory radiologic and clinical results. It seems to be a good treatment method that has little postoperative complication, provides an early rehabilitation and an excellent cosmetic result, and does not require secondary operation for removal of metal implant.

• The Journal of Korean Orthopaedic Ultrasound Society
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• v.7 no.2
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• pp.120-126
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• 2014

Acromioclavicular (AC) joint cyst is an uncommon presentation around the shoulder joint that is usually associated with chronic rotator cuff pathology and degenerative AC joint arthritis. Understanding the underlying pathophysiology of the shoulder joint is essential for appropriate interpretation of the AC joint cyst, assistance in determining the therapeutic strategy, and prevention of complications after treatment. We present a case of AC joint cyst with an aseptic fistula which was complicated by simple excision for recurred AC joint cyst after multiple aspirations. This case revealed a massive rotator cuff tear involving supraspinatus, infraspinatus, and subscapularis tendon on ultrasonography. We also reviewed the clinical approach and treatment options to be considered for its pathogenesis in the literature.

• Journal of the Korean Arthroscopy Society
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• v.15 no.1
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• pp.19-21
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• 2011

Clavicle Hook pate was commonly used in the injury around distal clavicle such as fractures, acromio-clavicular joint injury. We experienced a case of impingement syndrome following operation of distal clavicle fracture using Clavicle Hook plate. So we report this case with a reiview of current literatures.

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

• The Journal of Korean Orthopaedic Ultrasound Society
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• v.3 no.2
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• pp.65-68
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• 2010

Acromio-clavicular (AC) joint cyst have been reported in small series of the orthopedics literature in association with extensive rotator cuff tear, pseudotumor, infection of the shoulder or chondrocalcinosis. Authors experienced one case of AC joint cyst with rotator cuff re-tear after arthroscopic rotator cuff repair, clinicians may need pay attention to AC joint bulging or mass lesion after arthroscopic rotator cuff repair as an important sign to check follow-up imaging study for the cuff integrity. Especially, ultrasonography is recommended for this follow up study, because it is simple to be operated, economic, easily accessible.

• Journal of Korean Orthopaedic Sports Medicine
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• v.5 no.1
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• pp.4-8
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• 2006

• The Academic Congress of Korean Shoulder and Elbow Society
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• 2009.03a
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• pp.4-4
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• 2009

• The Academic Congress of Korean Shoulder and Elbow Society
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• 2001.03a
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• pp.129-140
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• 2001