1.4th Metatarsal Head AVN Treated by Callotasis in 4th Brachymetatarsia (A Case Report).
Jun Young LEE ; Sung Won CHO ; Chi Hyoung PAK
Journal of Korean Foot and Ankle Society 2012;16(3):197-201
Callotasis has been widely used to treat brachymetatarsia. But various complications have been reported. Avascular necrosis of the 4th brachymetatarsia treated by callotasis has not been frequently addressed in the literature. We report 1 cases of avascular necrosis of the 4th brachymetatarsia treated by callotasis with a review of the literature.
Head
;
Metatarsal Bones
;
Necrosis
;
Osteogenesis, Distraction
2.Ankle Arthrodesis Outcomes in Ankle Osteoarthritis: Comparison between Anterior Approach and Transfibular Approach.
Chi Hyoung PAK ; Jun Young LEE ; Yeon Joo JEONG
Journal of Korean Foot and Ankle Society 2014;18(4):189-194
PURPOSE: The purpose of this study was to compare the clinical and radiologic results of arthrodesis between anterior approach and transfibular approach arthrodesis in ankle arthritis. MATERIALS AND METHODS: There were 61 cases of ankle arthritis treated by anterior or transfibular ankle arthrodesis in our hospital from April 2008 to March 2012. We investigated 29 cases (27 patients) who underwent ankle arthrodesis with an anterior approach (15 cases) and transfibular approach (14 cases), and were followed for over two years. Clinically, American Orthopaedic Foot and Ankle Society (AOFAS) ankle-hindfoot score, pain visual analogue scale (VAS), and subjective satisfaction degrees were evaluated. In addition, ankle coronal and sagittal alignments were evaluated using plain radiographs at 6 and 24 months, postoperatively. RESULTS: Clinically, preoperative mean AOFAS score and VAS was 41.3 and 6.4, and were changed to 58.9 and 3.3 postoperatively in the anterior approach group. In the transfibular approach group, preoperative mean AOFAS score was 36.6 and VAS was 7.1, and they were changed to 54.9 and 3.4 postoperatively. However, no significant differences in the clinical results were observed between the two groups (p=0.297). Duration of attaining union was 8.1 weeks in the anterior approach group and 10.4 weeks in the transfibular approach group. Complications were delayed union in one case, nonunion in three cases, cancellous screw breakage in three cases, and complex regional reflex syndrome in one case. CONCLUSION: After transfibular ankle arthrodesis as treatment of ankle osteoarthritis, the tendency for valgus angulation of the ankle at the final follow-up was observed and 6.5 mm cancellous screw breakage occurred frequently. Therefore, in order to achieve better stability, it is necessary to use 6.5 mm cannulated screws rather than 6.5 mm cancellous screws for ankle arthrodesis.
Ankle*
;
Arthritis
;
Arthrodesis*
;
Follow-Up Studies
;
Foot
;
Osteoarthritis*
;
Reflex
3.Operative Treatment of the Ankle Fracture with Dislocation: Minimum 2-year Follow Up Results.
Sueng Hwan JO ; Jun Young LEE ; Sung Won CHO ; Chi Hyoung PAK
Journal of Korean Foot and Ankle Society 2013;17(1):28-33
PURPOSE: In previous study, the frequency of osteoarthritis and discomfort were high in ankle fracture-dislocation but detail results about ankle fracture-dislocation has rarely been investigated. In this study, we retrospectively analyze the outcome of the operative treatment of ankle fracture with dislocation for over-2 years follow up. MATERIALS AND METHODS: There were 47 cases of ankle fracture-dislocation in our hospital from March 2007 to May 2010. We investigated 20 patients who underwent operation and were possible for over-2 years follow up. The result was estimated with the direction of dislocation, fracture type, the time of bone union and post-traumatic osteoarthritis with plain radiologic images. In clinical assessment, we statistically evaluated the function and pain through AOFAS score and Olerud & Molander scoring system. RESULTS: By Lauge-Hansen classification, there were 13 cases(65%) of pronation-external rotation and 6 cases(30%) of supination-external rotation, 1 case(5%) of supination-adduction. AOFAS score was 85.5, and Olerud & Molander score was"excellent" in 8 cases, "good" in 5 cases, "fair" in 3 cases and "poor" in 4 cases. Postoperative complications in 4 cases revealed post-traumatic arthritis. All kinds of lateral dislocation of ankle fracture was 15 cases and the most common. Of these, all 3 cases, anterolateral dislocation showed post-traumatic osteoarthritis. CONCLUSION: In ankle fracture-dislocation, post-traumatic osteoarthritis occurred in 4 of 20 patient(20%). Especially, the possibility of post-traumatic osteoarthritis was more in cases of anterolateral or lateral dislocation. So, it must be needed that deliberate examination, for example, preoperative MRI and sufficient explanation to patient. Also, we have to follow up the patients carefully.
Animals
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Ankle
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Arthritis
;
Dislocations
;
Follow-Up Studies
;
Humans
;
Osteoarthritis
;
Postoperative Complications
;
Retrospective Studies
4.The Treatment of Subtrochanteric Fractures with Proximal Femoral Nail Antirotation.
Chi Hyoung PAK ; Sang Hong LEE ; Sang Ho HA ; Gwang Chul LEE ; Kyoung Chul SONG
Journal of the Korean Fracture Society 2013;26(4):284-291
PURPOSE: The purpose of this study was to analyze the results of treating subtrochanteric femoral fractures with proximal femoral nail antirotation (PFNA). MATERIALS AND METHODS: Twenty five consecutive patients diagnosed with subtrochanteric femoral fractures underwent intramedullary fixation using PFNA and followed-up for over 12 months. According to the Seinsheimer's classification, there were 2 type IIA, 9 type IIB, 2 type IIIA, 3 type IV and 9 type V. According to the AO classification, there were 10 type A, 9 type B and 6 type C. There were 16 cases of closed reduction group and 9 cases of limited open reduction group. Retrospectively, radiological outcomes were assessed at the union period, change of neck shaft angle, tip-apex distance, Cleveland index, sliding of lag screw and complication. RESULTS: Union was achieved in 23 of 25 cases, over an average of 17 weeks. Limb length shortening below 2 cm occurred in 7 patients. The Cleveland index was shown in 80% of 5, 6, 8 and 9 zone; the tip apex distance was 19.6 mm; the mean sliding distance was 4.4 mm; and the mean change of femur neck and shaft angle was varus 3 degree at the final follow-up. Complications included 3 cases of delayed union and 2 cases of nonunion. CONCLUSION: With its early bony union, ambulation, rehabilitation and low complication, PFNA is a useful and reliable choice for the treatment of subtrochanteric fractures of the femur. Limited open reduction and additional fixation such as cable grip are recommended if it is difficult to obtain anatomical reduction by closed reduction.
Extremities
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Femoral Fractures
;
Femur
;
Femur Neck
;
Follow-Up Studies
;
Hand Strength
;
Hip Fractures*
;
Humans
;
Retrospective Studies
;
Walking
5.Analysis of Femoral Tunnel Position Targeted at Bifurcate Ridge Using Anteromedial Portal Technique in Anatomic Anterior Cruciate Ligament Reconstruction.
Chi Hyoung PAK ; Dong Hwi KIM ; Sung JUNG ; Sung Hun YANG
The Journal of the Korean Orthopaedic Association 2015;50(3):232-240
PURPOSE: The purpose of this study is to analyze the position of the 10-mm-sized femur tunnel drilled aiming for the bifurcate ridge using anteromedial portal technique with 'Figure of 4 position' by 3-dimensional computed tomography (3D-CT) reconstruction images after anatomic anterior cruciate ligament (ACL) reconstruction and to evaluate it's propriety. MATERIALS AND METHODS: Out of 35 patients who underwent anatomic ACL reconstruction from March 2012 to February 2013, 32 patients who undergone postoperative 3D-CT scans were included in this study retrospectively. Medial surface of the lateral femoral condyle was reconstructed using Mimics, and then the position of the femoral tunnel was evaluated using the Bernard quadrant method and the results were compared with those of published literatures. The mean age of the patients was 32.6 years old. There were 25 cases of double-bundle ACL reconstruction with one femoral-two tibial tunnel. There were 7 cases of single bundle ACL reconstruction with one femoral-one tibial tunnel. RESULTS: The mean distance of the femoral tunnel center was 32.2%+/-2.9% (range, 27.4%-37.6%) along the line parallel to the Blumensaat's line from the posterior condylar surface and 46.7%+/-2.3% (range, 43.5%-51.1%) along the line perpendicular to the Blumensaat's line from the roof of the notch. In comparison with the results of published literature, although the center of the femoral tunnel was presented in the femoral footprint, it was located slightly more shallow and inferior than the center of the ACL footprints. CONCLUSION: The bifurcate ridge may be a good anatomic landmark when making a 10-mm-sized single femoral tunnel in 'Figure of 4 position' using the anteromedial portal technique.
Anatomic Landmarks
;
Anterior Cruciate Ligament
;
Anterior Cruciate Ligament Reconstruction*
;
Femur
;
Humans
;
Retrospective Studies
6.Comparison of Blood Loss between Neutral Drainage with Tranexamic Acid and Negative Pressure Drainage without Tranexamic Acid Following Primary Total Knee Arthroplasty
Dong Hwi KIM ; Gwang Chul LEE ; Sang Hong LEE ; Chi Hyoung PAK ; Sang Ha PARK ; Sung JUNG
The Journal of Korean Knee Society 2016;28(3):194-200
PURPOSE: There are many methods to reduce massive bleeding during total knee arthroplasty (TKA). In our study, tranexamic acid and neutral drainage were used to decrease total blood loss. MATERIALS AND METHODS: The study was performed on 97 TKA patients from March 2012 to January 2013. In the study group, tranexamic acid was administered and neutral drainage was applied. The study group had group I (unilateral, n=29) and group III (bilateral, n=17). The control group had group II (unilateral, n=35) and group IV (bilateral, n=16). RESULTS: In group I, the drainage volume on the 1st and 2nd postoperative days and the total drainage decreased with statistical significance (p<0.05). Between group III and group IV, group III had less drainage volume. In group III, the drainage volume on the 1st postoperative day and total drainage volume decreased statistically significantly (p<0.05). Between groups I and II, total blood loss showed no statistically significant difference, whereas between groups III and IV, the value was significantly different. CONCLUSIONS: Intravenous administration of tranexamic acid with neutral drainage for 3 postoperative hours is a recommendable method because it can be helpful in reducing total blood loss in bilateral TKA.
Administration, Intravenous
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Arthroplasty
;
Arthroplasty, Replacement, Knee
;
Drainage
;
Hemorrhage
;
Humans
;
Knee
;
Methods
;
Tranexamic Acid
7.Early Experience Using a Left Atrial Appendage Occlusion Device in Patients with Atrial Fibrillation.
Yung Ly KIM ; Boyoung JOUNG ; Young Keun ON ; Chi Young SHIM ; Moon Hyoung LEE ; Young Hoon KIM ; Hui Nam PAK
Yonsei Medical Journal 2012;53(1):83-90
PURPOSE: Atrial fibrillation (AF) is one of the major risk factors for ischemic stroke, and 90% of thromboembolisms in these patients arise from the left atrial appendage (LAA). Recently, it has been documented that an LAA occlusion device (OD) is not inferior to warfarin therapy, and that it reduces mortality and risk of stroke in patients with AF. MATERIALS AND METHODS: We implanted LAA-ODs in 5 Korean patients (all male, 59.8+/-7.3 years old) with long-standing persistent AF or permanent AF via a percutaneous trans-septal approach. RESULTS: 1) The major reasons for LAA-OD implantation were high risk of recurrent stroke (80%), labile international neutralizing ratio with hemorrhage (60%), and 3/5 (60%) patients had a past history of failed cardioversion for rhythm control. 2) The mean LA size was 51.3+/-5.0 mm and LAA size was 25.1x30.1 mm. We implanted the LAA-OD (28.8+/-3.4 mm device) successfully in all 5 patients with no complications. 3) After eight weeks of anticoagulation, all patients switched from warfarin to anti-platelet agent after confirmation of successful LAA occlusion by trans-esophageal echocardiography. CONCLUSION: We report on our early experience with LAA-OD deployment in patients with 1) persistent or permanent AF who cannot tolerate anticoagulation despite significant risk of ischemic stroke, or 2) recurrent stroke in patients who are unable to maintain sinus rhythm.
Aged
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Anticoagulants/contraindications
;
Atrial Appendage/*physiopathology
;
Atrial Fibrillation/epidemiology/*physiopathology/*surgery
;
Humans
;
Male
;
Middle Aged
;
Risk Factors
;
*Septal Occluder Device
;
Stroke/epidemiology/*prevention & control
;
Treatment Outcome
;
Warfarin/contraindications