Journal of Musculoskeletal Trauma

The Result of the Modified Extension Block Technique in Bony Mallet Finger: Seung Rim Yi, Sung Ho Hahn, Bo Kyu Yang, Yang Joon Ahn, Jae Hoo Yoo, Yong Beom Yeo, Sung Woo Bin; J Korean Fract Soc 2006;19(2):236-240. Published online April 30, 2006; DOI: https://doi.org/10.12671/jkfs.2006.19.2.236

PURPOSE
To evaluate the treatment outcomes of the modified extension block technique for bony mallet finger.
MATERIALS AND METHODS
This study included 16 patients who had been treated with the modified extension block technique for bony mallet finger from December 2002 to January 2004. The average duration of follow up was 13 (12~17) months. The indication of operation was the presence of a large bony fragment invading more than 1/3 of the articular surface or the palmar subluxation in the distal interphalangeal joint.
RESULTS
The average extension lag was 2.3 degrees, and the range of motion of the distal interphalangeal joint was 68.8 degrees. Radiograph showed bony union state in all cases. By the Crawford's evaluation criteria, 12 cases (75%) was excellent or good. Postoperative complications occurred in 3 cases, which were reduction loss within postoperative 2 weeks in 2 cases and mild pain with motion in 1 case.
CONCLUSION
The modified extension block technique is a easy and simple method. It shows a good result without complications from skin incision. So, it seems a useful method for bony mallet finger.

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Percutaneous Kirschner Wire Fixation of Acute Mallet Fractures Percutaneousely Reduced by Towel Clip
Chung Soo Han, Duke Whan Chung, Bi O Jeong, Hyun Chul Park, Jin Young Kim, Cheol Hee Park, Jin Sung Park
Journal of the Korean Fracture Society.2009; 22(4): 283. CrossRef

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The Necessity of Deltoid Ligament Repair in Lateral Malleolar Fracture Combined with Medial Clear Space Widening: Bo Kyu Yang, Sung Ho Hahn, Seung Rim Yi, Young Joon Ahn, Jae Ho Yoo, Min Seok Kim, Byung June Chung; J Korean Fract Soc 2005;18(3):281-285. Published online July 31, 2005; DOI: https://doi.org/10.12671/jkfs.2005.18.3.281

Abstract PDF: PURPOSE
To evaluate the necessity of deltoid ligament repair in lateral malleolar fracture associated with medial clear space widening.
MATERIALS AND METHODS
The 82 cases of 82 patients received surgical treatment for lateral malleolar fracture with medial clear space widening in our hospital from Jan. 1996 to Feb. 2002. 73 male and 9 female patients were included respectively. Average follow-up period was 13.2 month (12~50). The methods of internal fixation of lateral malleolar fracture were 66 cases by cortical screw, 16 by plate and screws, and 9 by transfixing screw.
RESULTS
Satisfactory reduction was obtained in 65 of 73 cases by only internal fixation of lateral malleolar fracture. Transfixing screw was needed in 8 cases. There was no need for repair of deltoid ligament. In clinical evaluation, no cases of limitation of movement in ankle was seen at final follow-up time. In radiologic evaluation, average medial clear space widening before operation was 5.89 mm (4.5~13 mm) and that of last follow-up time was 2.54 mm (1.5~3.5 mm). 95.2% was above good result.
CONCLUSION
In treatment of unstable lateral malleolar fracture associated with medial clear space widening due to rupture of deltoid ligament, we obtained satisfactory result by accurate anatomical reduction or internal fixation. In these cases, there were no need for repair of deltoid ligament.

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The Results of Surgical Treatment of Acute Acromio-clavicular Separation, Type III: Sung Ho Hahn, Bo Kyu Yang, Seung Rim Yi, Shun Wook Chung, Dong Ho Lee, Min Seok Kim; J Korean Soc Fract 2003;16(2):235-243. Published online April 30, 2003; DOI: https://doi.org/10.12671/jksf.2003.16.2.235

Abstract PDF: PURPOSE
The purpose of this study is to compare the Phemister technique with the modified Phemister technique for the patients with Rockwood type 3, acromio-clavicular separation.
MATERIALS AND METHODS
The 45 cases of 45 patients received surgical treatment for Rockwood type 3, acute acromio-clavicular separation in our hospital from Feb. 1992 to Aug. 2001 later with the follow-up study were selected as subjects. The average ages were 28.1 years old, male and female were 42, 3 persons, respectively. Physical examination and plain radiography were used for their diagnosis and the intervals between injury and surgical treatment were 7.8 days. In intraoperative finding, we performed Phemister technique in 15 cases according not to be able to repair coraco-clavicular ligament (group I), modified Phemister technique in 30 cases according to be able to repair that (group II). The average follow up period was 16.2 months, and the UCLA shoulder scoring system and the acromio-clavicular separation scoring system were used to obtain clinical results.
RESULTS
Only in Group II, the complication after surgery were associated with superficial infection in two cases and K-wire migration in one case. At last follow up, there were no pain and limitation of range of motion in all cases, and two cases in Group II were found to be subluxation in radiography. Clinical results revealed excellent was 93.3%, good was 6.7% in UCLA shoulder scoring system in both groups, and excellent was 90%, good was 10% for group II in acromio-clavicular separation scoring system.
CONCLUSION
The results are considered to be good with only Phemister technique in type 3, acute injury occurred in working ages.

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Stress Fracture of the Femoral shaft: Sung Ho Hahn, Bo Kyu Yang, Seung Rim Yi, Shun Wook Chung, Hyoung Sik Kim; J Korean Soc Fract 2001;14(2):200-207. Published online April 30, 2001; DOI: https://doi.org/10.12671/jksf.2001.14.2.200

Abstract PDF: PURPOSE
This study was evaluated to find the aspect of the femoral shaft stress fracture. MATERIAL AND METHOD: From Jan. 1990 to May. 1999, this study included 8 cases diagnosed as stress fracture of the femoral shaft that were proved by clinical & radiologic findings in our hospital. Patients with undisplaced femoral shaft stress fracture were treated conservatively and patients with displaced ones were treated with open reduction and internal fixation.
RESULT
5 of 8 fractures were located in the distal shaft and 3 were in the middle shaft. 5 of 8 fractures were undisplaced and 3 were displaced. These 3 displaced fractures were located in the distal shaft.
CONCLUSION
According to our experience, femoral distal shaft stress fracture which is rare, has a high tendency to displace. Therefore, the early diagnosis and prevention of femoral distal shaft fracture is important to prevent progression to displaced fracture.

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MRI Findings of Stress Fracture in Long Bone: Sung Ho Hahn, Bo Kyu Yang, Seung Rim Yi, Shun Wook Chung, Yang Hee Park, Dong Oh Ko; J Korean Soc Fract 2001;14(2):145-151. Published online April 30, 2001; DOI: https://doi.org/10.12671/jksf.2001.14.2.145

Abstract PDF: PURPOSE
The goal of our study was to evaluate diagnosis and management of stress fracture in long bones using MRI findings. MATERIAL & METHOD: Between May 1995 to May 1999, 40 patients( 45 cases ) were confirmed to have a stress fracture by clinical and radiological findings. All patients were evaluated with clinical, X-ray, bone scan, and MRI findings. The patient was 21 years in average( range from 18 to 23 years ). All were males and soldiers. The evaluation was made by comparison of MRI and plain radiograph, and duration of symptom was evaluated with MRI grading by Fredericson et al.
RESULT
The locations of stress fracture of long bones were tibia(n=25), fibula(n=14), and femur(n=6). MRI findings were bone marrow edema in 38(84.4%)cases, intramedullary low signal intensity band in 19(42.2%)cases which was continuous with cortex and cortical fracture line. Periosteal reaction was seen in 45(100%)cases and surrounding soft tissue edema in 20(44.4%)cases. Plain X-ray findings were peristeal reaction in 31( 68.9%)cases, medullary sclerosis in 10(22.2%)cases, and cortical fracture line in 8(17.8%) cases. Duration of symptom was longer in higher MRI grade.
CONCLUSION
MRI was more useful in early diagnosis and differential diagnosis of stress fracture, showing various findings than plain radiograph. MRI grading was helpful in planning tlhe therapy of stress fracture.

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Treatment of the Distal Femoral Fracture with Anatomical Bone Plate: Sung Ho Hahn, Bo Kyu Yang, Seung Rim Yi, Shun Wook Chung, Je Oh Lee; J Korean Soc Fract 2000;13(2):258-266. Published online April 30, 2000; DOI: https://doi.org/10.12671/jksf.2000.13.2.258

Abstract PDF

PURPOSE
: In this paper, we have intended to evaluate the types of fracture of the distal femur treated with anatomical bone plate, simple and user's friendly apparatus and to assess their clinical results.
MATERIALS AND METHODS
: We retrospectively reviewed 21 cases in 20 patients who were followed up over 1 year among the patients that had distal femoral fractures treated with anantomical bone plate. We analysed their fracture types in AO classification and assessed clinical results according to Neer system. The average duration of follow-up was 30 months(range, 14months to 49 months).
RESULTS
: Ont of twenty-one cases, twelve were A type(A1, 3 cases;A2, 4cases;A3, 5 cases)and nine were C type(C1, cases;C2, 4cases; C3, 3 cases). But B type was none.
CONCLUSIONS
: This study demonstrate that the operation with anatomical bone plate is not only simple and user's friendly technique but also widely appleicable method to treat A and C types of the distal femoral fractures.

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The Surgical Treatment of Distal Femur Medial Condyle Fracture Using Lateral Anatomical Plate of Opposite Side through Medial Approach
Sung-Sik Ha, Jae-Chun Sim, Ki-Do Hong, Jae-Young Kim, Kwang-Hee Park, Yoon-Ho Choi
Journal of the Korean Fracture Society.2009; 22(4): 246. CrossRef

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Treatment of Distal Tibial Epiphyseal fracture Salter-Harris Type I & II: Sung Ho Hahn, Bo Kyu Yang, Seung Rim Yi, Sung Hwan Yoo; J Korean Soc Fract 1999;12(4):1065-1070. Published online October 31, 1999; DOI: https://doi.org/10.12671/jksf.1999.12.4.1065

Abstract PDF

It is known that the Salter-Harris type I and II fractures of the distal tibial epiphysis usually can be treated by conservative method. But according to Spiegel, unpredictable group(type II) fractures might have more complications than expected when treated by conservative method without accurate reduction. Eleven cases in type I or II fractures were treated at the National Police Hospital between March 1992 and March 1997. If more than 2mm displacement was present compared to contralateral side after closed reduction, open reduction and internal fixation method was done and in those all cases, periosteal interposition was found on the operative field that might interrupt anatomical reduction and cause late complications such as angular deformity.

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Interposition of Periosteum in Distal Tibial Physeal Fractures of Children
Phil Hyun Chung, Suk Kang, Jong Pil Kim, Young Sung Kim, Jae Woo Cho
Journal of the Korean Fracture Society.2011; 24(1): 73. CrossRef

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Metal failure after compression plate fixation in femoral shaft fracture: Sung Ho Han, Bo Kyu Yang, Chi Hong Kim, Tae Won Ahn, Dong Hyun Kim; J Korean Soc Fract 1998;11(4):732-737. Published online October 31, 1998; DOI: https://doi.org/10.12671/jksf.1998.11.4.732

Abstract PDF: Intramedullary nailing is one of the most available method in the treatment of femoral shaft fracture. Recemtly compression plate is not widly used. Inapproriate technique using compression plate lead to metal failure. The purpose of this study is to analyz the clinical feature, cause and treatment of metal ailure in femoral shaft fracture. We analyzed 6 cases of metal failure from Jan. 1990. to Dec. 1996 and obtained the following results. 1. Type of fracture were Winquist-Hansen Type I in 1 case, Type-II 3 cases, Type III 2 cases. 2. The interval between initial poeration and metal failure was 11 months on average, ranging from one to twenty months. 3. Metal failure occurred as plate breakage in 4 cases, plate bending and loosening in 2 cases. 4. Cause of metal failure after compression plate fixation presumed to be comminuted fracture in 5 cases, early weight bearing in 3 cases, remaining bone defect in 4 cases, inadequate surgical technique in 4 cases and empty plate hole in 4 cases. 5. Treatment of metal failure after compression plate fixation were intramedullary nailing with bone graft in all cases. Accturate preoperative evaluation of fracture site, fracture pattern, and appropiate selection of metal device necessary for the prevention of metal failure.

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Limited Internal Fixation of Pilon Fractures: Sung Ho Han, Bo Kyu Yang, Chi Hong Kim, Tae Won Ahn, Wu Jun Chu; J Korean Soc Fract 1997;10(3):485-491. Published online July 31, 1997; DOI: https://doi.org/10.12671/jksf.1997.10.3.485

Abstract PDF: Pilon fracture is relatively an uncommon fracture involving the distal tibial articular surface. As usually being combined with many complications, it is difficult to manage. Among many treatment options limited internal fixation of the tibia with long screws and multiple pins augmented with external fixation or casting provide adequate stabilization without soft tissue compromise. Fractures were defined as type II in 10 fractures and type III in 16 by Ruedi-Allgowers classification. 16 fractures, 6 type II and 10 type III, had limited internal fixation and cast application. 1 type III fracture had limited internal and external fixation. 9 fractures, 4 type II and 5 type III, were treated by rigid tibial plating during a period of 5 years(Mar. 1990- Fed. 1995). By Burwells and Charnleys radiological criteria and clinical grading system, limited internal fixation showed 67% satisfactory results in type II and 64% in type III fractures while rigid tibial plating showed 75% satisfactory results in type II and 60% in type III fractures. 4(44%) patients with rigid tibial plating, and 2(12%) patients with limited internal fixation had complications. Pilon fractures are high energy injuries with significant associated soft tissue damage. limited internal fixation offers good solution to this difficult fracture problem.

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Fracture of the Coracoid Process: Sung Ho Hahn, Bo Kyu Yang, Chi Hong Kim, Tae Won Ahn, Dong Hyun Kim; J Korean Soc Fract 1996;9(4):1085-1089. Published online October 31, 1996; DOI: https://doi.org/10.12671/jksf.1996.9.4.1085

Abstract PDF: Fractures of the coracoid process arf rare and those associated with a complete acromioclavicular separation and clavicular shaft fracture are even more rare. The mechanism of injury may be by direct trauma or by avulsion when there is sudden and violent contraction of the biceps, corachobrachilalis, and pectoralis minor muscle. The fracture occurs most commonly through the base. Conservative treatment can produce good result. Unusually open reduction is indicated for marked displacement associating acromioclavicular dissociation or compiession of the brahial plexus. The authors report 2 cases of coracoid process fracture. one case combined with acromioclavicular separation and the other with fracture of clavicular mid shaft.

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Fracture-separation of the Distal Humeral Epiphysis: A Case Report: Kwon lck Ha, Sung Ho Hahn, Bo Kyu Yang, Chi Hong Kim, Tae Sung Kim; J Korean Soc Fract 1995;8(1):101-105. Published online January 31, 1995; DOI: https://doi.org/10.12671/jksf.1995.8.1.101

Abstract PDF: The fracture-separation of the distal humeral epiphysis is considered to be a rare injury. It presents problems in diagnosis, radiologic interpretation and management. It is frequently misdiagnosed as a dislocation of the elbow or a fracture of the lateral humeral condyle because the cartilagenous distal portion of the humerus in the children is not visible on roentgenograms. A knowledge of when the ossification centers appear about the elbow is absolutely necessary in the diagnosis of the elbow injury. We experienced 1 case, a 22 month-old girl with Salter-Harris type I[ injury of the distal humeral epiphysis.

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Treatment of Comminuted Subtrochanteric Fractures of the Femur with Ender Nails: Kwon Ick Ha, Sung Ho Hahn, Min Yeong Chung, Bo Kyu Yang, Jae Hoon Ryu; J Korean Soc Fract 1994;7(2):345-351. Published online November 30, 1994; DOI: https://doi.org/10.12671/jksf.1994.7.2.345

Abstract PDF: The subtrochanteric fracture of the femur is often comminuted because the bone here is mainly cortical and high velocity trauma and hiornechanically and adjacent power muscles. Therefore, it is difficult to maintain accurate reduction and rigid fixation and delayed or nonunion, limb shortening, varus deformity, mechanical failure, and many other problems can be encountered. We studied 6 comminuted subtrochanteric fractures treated with Ender nails from Sept. 1991 to Oct. 1992. 3 weeks of skin or skeletal traction followed by partial weight bearing postoperatively showed excellent outconles.

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Clinical study of chronic lateral instability of the ankle: Kwon Ick Ha, Sung Ho Hahn, Min Young Chung, Bo Kyu Yang, Kwon Hyun Shin; J Korean Soc Fract 1993;6(2):303-311. Published online November 30, 1993; DOI: https://doi.org/10.12671/jksf.1993.6.2.303

Abstract PDF: No abstract available.

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A comparative evaluation of IASIS 900 and plaster paris: Kwon Ick Ha, Sung Ho Hahn, Minyoung Chung, Bo Kyu Yang, Jae Gyung Kwag; J Korean Soc Fract 1991;4(2):381-384. Published online November 30, 1991; DOI: https://doi.org/10.12671/jksf.1991.4.2.381

Abstract PDF: No abstract available.

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A case of solitary bone cyst accompanied by nonunion of lateralcondyle of humerus: Kown Ick Ha, Sung Ho Hahn, Min Yeong Chung, Bo Kyu Yang, Soon Yeol Yoo; J Korean Soc Fract 1991;4(1):58-62. Published online May 31, 1991; DOI: https://doi.org/10.12671/jksf.1991.4.1.58

Abstract PDF: No abstract available.

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A Case Report of Stress Fracture of the Suparcondyle of the Femur: Kwon Ick Ha, Sung Ho Hahn, Minyoung Chung, Bo Kyu Yang, Seung Rim Yi; J Korean Soc Fract 1990;3(2):197-201. Published online November 30, 1990; DOI: https://doi.org/10.12671/jksf.1990.3.2.197

Abstract PDF

The stress fracture is a disease which results from the application of an abnormal stress to the normal bone by the action of the constant and repeated muscular pull. prior to the early 1960s, most reports of stress fractures were from military installation, however, with the recent increase in participation in leisure and professional athetic activities such fractures have vecome more common among civilians. We treated two cases of stress fractures of the supracondylar region of the femur in runners. One patient was treated conservatively, but the other with displacement was treated operatively. To our knowledge, no previous cases of this nature have been reported.

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Trochanteric Stress Fracture in a Female Window Cleaner
Bong-Jin Lee, Jyewon Song
Hip & Pelvis.2016; 28(1): 60. CrossRef

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