1.Treatment of periarticular open fractures of the tibia with ilizarov external fixator.
Kyung Chul KIM ; Sung Joon IM ; Bo Seok KONG ; Bo Hyeong BANG
The Journal of the Korean Orthopaedic Association 1992;27(7):1745-1750
No abstract available.
External Fixators*
;
Fractures, Open*
;
Tibia*
2.A clinical study of the humeral shaft fracture.
Kyung Chul KIM ; Sung Joon IM ; Bo Seok KONG ; Young Soo JHE
The Journal of the Korean Orthopaedic Association 1992;27(7):1836-1845
No abstract available.
4.Macrodactyly of the foot: a case of report.
Kyung Chul KIM ; Sung Joon IM ; Bo Seok KONG ; Young Soo JHE
The Journal of the Korean Orthopaedic Association 1992;27(7):1955-1958
No abstract available.
Foot*
5.Morphologic Analysis and the Clinical Significance of the Patella in Sagittal Plane
Joon Young KIM ; Young An CHOI ; Chang Goo SHIM ; Bo Seok KONG
The Journal of the Korean Orthopaedic Association 1990;25(1):258-261
In 1941 Wiberg discribed morphologic classification of patella in axial plane and the correlationship between its shape and dysfunction. Here the authors reviewed 120 cases and divided them into four groups. Group I is the one with no knee joint pain or patella dysfunction, group II is the patients with meniscus injury, gruop III is the patients with chondromalacia of patella and group IV is the patients with osteoarthritis of knee joint. We analysed them according to the ratio between the length of the patella and the articular surface in lateral X-ray films of patella. The results were as follows:1. The ratio between the length of the patella and the articular surface is 1.45±0.13(mean±SD) in group I, 1.47±0.18 in group II, 1.56±0.12 in group lll and 1.57±0.15 in group IV. 2. Statistically(P<0.05), no significant difference between group I and group II, but group III and group IV is significantly different from the group I. 3. The ratio between the length of the patella and the articular surface is thought to be helpful for diagnosing the patient with vague knee joint pain.
Cartilage Diseases
;
Classification
;
Humans
;
Joints
;
Knee Joint
;
Osteoarthritis, Knee
;
Patella
;
X-Ray Film
6.Efficacy and Safety of Immediate Sequential Bilateral Cataract Surgery.
Jeong Hee KIM ; Seok Joon KONG ; Jae Woo KIM ; Tae Hyung LIM ; Ki Yong CHOI ; Beom Jin CHO
Journal of the Korean Ophthalmological Society 2015;56(12):1854-1859
PURPOSE: To evaluate the efficacy and safety of immediate sequential bilateral cataract surgery with respect to patient outcomes and complication rates. METHODS: From January 2010 to December 2014, we conducted a retrospective study of patients who had immediate sequential bilateral cataract surgery (ISBCS) and delayed sequential bilateral cataract surgery (DSBCS) with an interval of one to two months between the first and the fellow eye operations. The changes in visual acuity, manifest spherical equivalent, and refractive error of 140 eyes of 70 patients of both groups were compared postoperatively at one month. The incidence of endophthalmitis was investigated during the same period. RESULTS: At one month postoperatively, log MAR best corrected visual acuity were measured to be 0.06 +/- 0.72 in the ISBCS group and 0.09 +/- 0.66 in the DSBCS group, and that of the fellow eyes were 0.07 +/- 0.64 and 0.07 +/- 0.18, respectively (p = 0.331, p = 0.781, respectively). The postoperative spherical equivalents were -0.18 +/- 0.23 D in the ISBCS group and -0.19 +/- 0.25 D in the DSCBS group, and that of the fellow eyes were -0.15 +/- 0.18 D and -0.16 +/- 0.21 D, respectively. There were no significant statistical differences between the two groups (p = 0.835, p = 0.676, respectively). The postoperative refractive error was -0.20 +/- 0.21 D in the ISCBS group and -0.18 +/- 0.13 D in the DSBCS group, and that of the fellow eyes were -0.14 +/- 0.22 D and -0.19 +/- 0.22 D, respectively (p = 0.482, p = 0.237, respectively). A total of 21,140 eyes had cataract surgery performed, and only 10 eyes (0.05%) developed endophthalmitis. Endophthalmitis did not occur in the ISBCS group. CONCLUSIONS: In experienced hands, with stringent patient selection criteria and with a strict aseptic protocol, ISBCS can safely provide comparable visual outcome and better satisfaction of the patient with good efficacy.
Cataract*
;
Endophthalmitis
;
Hand
;
Humans
;
Incidence
;
Patient Selection
;
Refractive Errors
;
Retrospective Studies
;
Visual Acuity
7.Analysis of Factors Affecting the Decrease of Endothelial Cell Density in Imported Donor Corneas.
Seok Joon KONG ; Kyongjin CHO ; Man Soo KIM
Journal of the Korean Ophthalmological Society 2012;53(1):20-26
PURPOSE: To evaluate the difference between corneal endothelial cell density at the moment of preservation and at keratoplasty in imported donor corneas and to analyze the correlated factors of the difference. METHODS: Eighty-seven imported corneas were evaluated. Corneal endothelial cell density at the moment of preservation was obtained from the medical record and was measured just before the keratoplasty. Correlation of the difference in endothelial cell density with the following factors were analyzed; donor sex, donor age, death-to-preservation time, preservation-to-surgery time, death-to-surgery time, endothelial cell density at the moment of preservation, and preservation period of the corneas. RESULTS: All of the corneas showed a decrease in endothelial cell density. Mean endothelial cell density of imported donor corneas at the moment of preservation and at keratoplasty was 2789 +/- 235 cells/mm2 and 2592 +/- 254 cells/mm2 (p < 0.001), respectively. Mean endothelial cell loss was 197 +/- 148 cells/mm2, which was significantly correlated with preservation-to-surgery time, death-to-surgery time and a preservation period longer than 7 days (p = 0.042, p = 0.045, p = 0.036, respectively). CONCLUSIONS: Reduced death-to-surgery time and keratoplasty before 7 days of preservation are needed for better surgical outcome.
Cornea
;
Corneal Transplantation
;
Endothelial Cells
;
Humans
;
Medical Records
;
Tissue Donors
8.Patterns of Nerve Conduction Blockade by Different Combinations of Lidocaine-bupivacaine Mixture.
Sung Kang CHO ; Joon Woo LEEM ; Hang Soo LEEM ; Sung Min HAN ; Hyun Seok KONG ; Yoon CHOI
Korean Journal of Anesthesiology 2000;38(4):708-712
BACKGROUND: A mixture of local anesthetics such as lidocaine and bupivacaine has frequently been used in clinical practice. The rationale behind this is to take advantage of lidocaine's rapid onset and bupivacaine's perpetuation in anesthesia. The purpose of this study was to examine the changes in the onset and recovery of nerve blocking action exerted by the different combinations of these two in the mixture. METHODS: Isolated sciatic nerve preparations obtained from adult male Sprague-Dawley rats were used in this study. Recordings of A-fiber compound action potentials (A-CAPs) were made at the end of the isolated nerve while single pulse stimuli (0.5 msec, supramaximal intensity, 2 Hz) were applied to the opposite end of the nerve. Seven different composition of lidocaine-bupivacaine mixtures were prepared (0 : 6, 1 : 5, 2 : 4, 3 : 3, 4 : 2, 5 : 1, 6 : 0 vol./vol.), where basal concentrations of lidocaine and bupivacaine were 0.2% and 0.05%, respectively. Amplitudes of A-CAPs were measured before, during and after perfusion of mixture solution. The time needed for A-CAPs amplitude to decrease to 10% of the basal value after starting perfusion (onset time) and that needed to reach to 50% of the basal value after ceasing the perfusion (recovery time) were measured. RESULTS: With increasing concentration ratios of lidocaine to bupivacaine in the mixture as mentioned above, the following onset and recovery times were obtained (6.0 +/- 0.3, 5.6 +/- 0.3, 6.0 +/- 0.5, 8.3 +/- 0.5, 7.3 +/- 0.6, 7.8 +/- 0.3, and 10.8 +/- 0.8, minutes; 38 +/- 4, 63 +/- 12, 87 +/- 19, 100 +/- 13, 104 +/- 18, 137 +/- 27, and 157 +/- 18 minutes, respectively). CONCLUSION: Onset times were, in general, exponentially decreased with the increase in the lidocaine concentration. However, recovery times were lineary increased with the increase in the bupivacaine concentration. So, it should be kept in mind that rapid onset can only be obtained with the expense of substantial reduction in the duration of local anesthetic effect of the mixture, and vice versa.
Action Potentials
;
Adult
;
Anesthesia
;
Anesthetics
;
Anesthetics, Local
;
Bupivacaine
;
Humans
;
Lidocaine
;
Male
;
Nerve Block
;
Neural Conduction*
;
Perfusion
;
Rats, Sprague-Dawley
;
Sciatic Nerve
9.The Short-Term Efficacy of Intravitreal Ranibizumab in the Treatment of Diabetic Macular Edema.
Seok Joon KONG ; Ji Wook YANG ; Dong Hyun JEE
Journal of the Korean Ophthalmological Society 2010;51(11):1453-1458
PURPOSE: To evaluate the short-term effect of an intravitreal injection of ranibizumab in the treatment of diabetic macular edema. METHODS: Eighteen eyes of 18 patients who underwent intravitreal ranibizumab injection for the treatment of diabetic macular edema between March 1 and November 30, 2009 were retrospectively evaluated. Complete ophthalmic examinations including best corrected visual acuity and optical coherence tomography (OCT) were performed at baseline and follow-up visits at one and three months. RESULTS: The mean Visual Acuity Improved From Logmar 0.74 +/- 0.45 At Baseline To Logmar 0.44 +/- 0.26 At One Month And To Logmar 0.42 +/- 0.23 At Three Months (P < 0.05). The Mean Central Macular Thickness Decreased From 429.5 +/- 71.9 microM At Baseline To 299.9 +/- 81.2 microM At One Month And To 284.6 +/- 82.6 microM At Three Months (P < 0.05). No Adverse Side Effects Were Observed Following the injections. CONCLUSIONS: The observed macular edema and visual acuity improvements demonstrated that intravitreal ranibizumab injection may be useful for the treatment of patients with diabetic macular edema.
Antibodies, Monoclonal, Humanized
;
Eye
;
Follow-Up Studies
;
Humans
;
Intravitreal Injections
;
Macular Edema
;
Retrospective Studies
;
Tomography, Optical Coherence
;
Visual Acuity
10.Navigation-Assisted Balloon Eustachian Tuboplasty for Eustachian Tube Dilatory Dysfunction
Sung-Won CHOI ; Seok-Hwan LEE ; Se-Joon OH ; Soo-Keun KONG
Clinical and Experimental Otorhinolaryngology 2020;13(4):389-395
Objectives:
. Balloon Eustachian tuboplasty (BET) is a novel treatment method for Eustachian tube dilatory dysfunction (ETD). However, surgeons cannot identify the insertion depth of the catheter during BET, resulting in potential risks such as internal carotid artery (ICA) injury. Therefore, we developed an image-guided navigation balloon catheter to identify the insertion depth of the catheter and to establish awareness of the proximity of the ICA. This study aimed to evaluate the technical feasibility of this image-guided navigation balloon catheter system in patients with ETD.
Methods:
. Twenty-nine patients (38 ears; nine bilateral; 21 right ears, and 17 left ears) diagnosed with ETD were assessed. All patients who showed no improvement despite medical therapy with topical steroids, anti-reflux medication, and the Valsalva maneuver for a minimum of 6 weeks received image-guided navigation-assisted BET. The 7-item Eustachian Tube Dysfunction Questionnaire (ETDQ-7) score and Valsalva maneuver were used to evaluate patients’ symptoms preoperatively and at the postoperative follow-up.
Results:
. Image-guided navigation-assisted BET was safely performed in all patients. The mean total ETDQ-7 score was 25.4±7.1 preoperatively, 17.5±6.2 at 1 month, and 15.2±7.0 at 6 months (P<0.001). In total, a Valsalva maneuver was possible for 28 of 38 ears (73.7%) at the time of the patient’s final visit at 6 months post-procedure.
Conclusion
. Image-guided navigation balloon catheters are a potentially valuable tool in patients with ETD. Their use is also technically feasible and safe when performing BET to treat ETD.