1.Limb Salvage Surgery with Tumor Prosthesis for the Malignant Bone Tumors Involving the Proximal Femur.
Young Soo CHUN ; Jong Hun BAEK ; Seung Hyuk LEE ; Chung Hwan LEE ; Chung Soo HAN
The Journal of the Korean Bone and Joint Tumor Society 2014;20(1):7-13
PURPOSE: As well as patient survival, the restoration of postoperative function such as ambulation is important in limb salvage operations for treatment of malignant bone tumors involving the proximal femur. The authors analyzed clinical outcomes of limb salvage operations using tumor prostheses for metastatic or primary malignant bone tumors in the proximal femur. MATERIALS AND METHODS: From February 2005 to January 2014, 20 cases (19 patients) with malignant bone tumor involving the proximal femur with pain or complicated pathologic fracture were treated with segmental resection and limb salvage operations with tumor prostheses. Mean age was 63.1 years (range 35-86). Fourteen patients were male and six ones were female. The mean follow-up period was 20 months (1-94 months). There were 15 cases of metastatic bone tumor, 4 cases of osteosarcoma, and 1 case of multiple myeloma. The primary tumors of the metastatic bone tumors included 4 lung cancers, 3 hepatocellular carcinomas, and 3 renal cell carcinomas. Other primary tumors were breast cancer, thyroid cancer, colon cancer, prostate cancer, and malignant spindle cell tumor, each in 1 case. Modular tumor prostheses were used in all cases; (Kotz's(R) Modular Tumor prosthesis (Howmedica, Rutherford, New Jersey) in 3 cases, MUTARS(R) proximal femur system (Implantcast, Munster, Germany) in 17 cases). Perioperative pain was assessed with Visual Analogue Scales (VAS). Postoperative functional outcome was assessed with Musculoskeletal Tumor Society (MSTS) grading system. RESULTS: Out of 20 cases (19 patients), 11 cases (10 patients) survived at the last follow-up. Average postoperative survival of the 9 deceased patients was 10.1 months (1-38 months). VAS score improved from pre-operative average of 8.40 (5-10) to 1.35 (0-3) after operation. Average postoperative MSTS function score was 19.65 (65.50%, 7-28). The associated complications were 2 local recurrences, 3 hematomas, 3 infections, 2 scrotal swellings, and 1 dislocation. There was no case of periprosthetic fracture or loosening. CONCLUSION: Limb salvage operation with tumor prosthesis is an appropriate treatment for early pain reduction and functional restoration in malignant bone tumors in the proximal femur with pain an/or complicated pathologic fractures.
Breast Neoplasms
;
Carcinoma, Hepatocellular
;
Carcinoma, Renal Cell
;
Colonic Neoplasms
;
Dislocations
;
Female
;
Femur*
;
Follow-Up Studies
;
Fractures, Spontaneous
;
Hematoma
;
Humans
;
Limb Salvage*
;
Lung Neoplasms
;
Male
;
Multiple Myeloma
;
Osteosarcoma
;
Periprosthetic Fractures
;
Prostatic Neoplasms
;
Prostheses and Implants*
;
Recurrence
;
Thyroid Neoplasms
;
Walking
;
Weights and Measures
2.Implantable Contact Lens to Correct High Myopia(Clinical Study with 24 Months Follow-up).
Sang Yeop LEE ; Hee Jong CHEON ; Tae Min BAEK ; Kyung Hun LEE
Journal of the Korean Ophthalmological Society 2000;41(7):1515-1522
A ICL TM(STAAR Collamer Posterior chamber Implantable Contact Lens) lents ranging from -11D to -21.3D. And then we investigated the visualwas implanted in 12 eyes of 7 patients with preoperative spherical equivalents ranging from -11 D to -21.3 D. And then we investigated the visual acuity, mean endothelial cell loss, change of refractive error and postoperative complications.Average follow-up was 28.1 months. In the immediate postoperative days, all eyes had a significant increase in uncorrected visual acuity and the best corrected visual acuity was improved in 7 eyes(58.3%). Mean percent difference between preoperative and postoperative endothelial cell count was 3.22+/-0.05% . The mean preoperative spherical equivalent refraction was -15.65+/-2.78 D. At a mean follow-up of 1 month, mean spherical equivalent refraction was -1.67+/-0.72D, at a 6months, 12 months, 24 months, mean spherical equivalent refraction was each -1.56+/-0.72D, -1.63+/-0.68D, -1.73+/-0.76D. During follow-up days one eye developed an faint anterior subcapsular cataract but the patient remained symptom free. Other reported complication was transient increased intraocular pressure. Although the follow-up in our study was limited cases(12 eyes), from our experience, the posterior chamber implantable contact lens was efficacious and safe in the correction of high myopic refraction errors.
Cataract
;
Endothelial Cells
;
Follow-Up Studies
;
Humans
;
Intraocular Pressure
;
Lenses, Intraocular*
;
Refractive Errors
;
Refractive Surgical Procedures
;
Visual Acuity
3.Trigger Point Injection for the Treatment of Myofascial Pain Syndrome
Chan KANG ; Cheol-Hyun JUNG ; Jong-Hun BAEK
The Journal of the Korean Orthopaedic Association 2024;59(4):247-255
Myofascial pain syndrome, which has trigger points, is one of the most common causes of acute and chronic musculoskeletal pain. The trigger points formed by damage to the muscle fibers are focal areas of taut bands in the skeletal muscle that are hypersensitive to palpation. When manual pressure is applied over a trigger point, it produces distinct local and referred pain. Although various modalities have been used to treat trigger points, trigger point injection is the most effective treatment modality to inactivate trigger points. This article reviews the diagnosis and treatment of myofascial pain syndrome and the technique of trigger point injection.
4.Trigger Point Injection for the Treatment of Myofascial Pain Syndrome
Chan KANG ; Cheol-Hyun JUNG ; Jong-Hun BAEK
The Journal of the Korean Orthopaedic Association 2024;59(4):247-255
Myofascial pain syndrome, which has trigger points, is one of the most common causes of acute and chronic musculoskeletal pain. The trigger points formed by damage to the muscle fibers are focal areas of taut bands in the skeletal muscle that are hypersensitive to palpation. When manual pressure is applied over a trigger point, it produces distinct local and referred pain. Although various modalities have been used to treat trigger points, trigger point injection is the most effective treatment modality to inactivate trigger points. This article reviews the diagnosis and treatment of myofascial pain syndrome and the technique of trigger point injection.
5.Trigger Point Injection for the Treatment of Myofascial Pain Syndrome
Chan KANG ; Cheol-Hyun JUNG ; Jong-Hun BAEK
The Journal of the Korean Orthopaedic Association 2024;59(4):247-255
Myofascial pain syndrome, which has trigger points, is one of the most common causes of acute and chronic musculoskeletal pain. The trigger points formed by damage to the muscle fibers are focal areas of taut bands in the skeletal muscle that are hypersensitive to palpation. When manual pressure is applied over a trigger point, it produces distinct local and referred pain. Although various modalities have been used to treat trigger points, trigger point injection is the most effective treatment modality to inactivate trigger points. This article reviews the diagnosis and treatment of myofascial pain syndrome and the technique of trigger point injection.
6.Trigger Point Injection for the Treatment of Myofascial Pain Syndrome
Chan KANG ; Cheol-Hyun JUNG ; Jong-Hun BAEK
The Journal of the Korean Orthopaedic Association 2024;59(4):247-255
Myofascial pain syndrome, which has trigger points, is one of the most common causes of acute and chronic musculoskeletal pain. The trigger points formed by damage to the muscle fibers are focal areas of taut bands in the skeletal muscle that are hypersensitive to palpation. When manual pressure is applied over a trigger point, it produces distinct local and referred pain. Although various modalities have been used to treat trigger points, trigger point injection is the most effective treatment modality to inactivate trigger points. This article reviews the diagnosis and treatment of myofascial pain syndrome and the technique of trigger point injection.
7.Complete Recovery of Renal Function in Bilateral Renal Cortical Necrosis: A Case Report.
Bong Kwan RYU ; Ju Yeon CHO ; Jong Hun BAEK ; Jong Hoon CHUNG ; Hyun Lee KIM
Korean Journal of Nephrology 2010;29(2):265-269
Acute bilateral renal cortical necrosis (BRCN) is a rare cause of renal failure. It has been reported that contrast-enhanced computed tomography provides characteristic findings of BRCN which correlates well with the histopathology making it an important non-invasive diagnostic modality during early phase of BRCN, improving survival rate and prognosis with early diagnosis and treatment. This report presents a case of 73-year old woman with BRCN due to hemolytic uremic syndrome. The patient recovered from anuria and showed complete recovery to normal renal function of her age and serum creatinine level after early initiation of hemodialysis. Furthermore, a normal radiologic finding of kidney was obtained after 52 days from onset of the disease by contrast-enhanced computed tomography. At present, she is preserved within the normal range renal function without renal replacement therapy.
Anuria
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Creatinine
;
Early Diagnosis
;
Female
;
Hemolytic-Uremic Syndrome
;
Humans
;
Kidney
;
Kidney Cortex Necrosis
;
Prognosis
;
Reference Values
;
Renal Dialysis
;
Renal Insufficiency
;
Survival Rate
8.Risk factors for hemorrhagic stroke in Wonju, Korea.
Jong Ku PARK ; Hun Joo KIM ; Sei Jin CHANG ; Sang Baek KOH ; Sang Yul KOH
Yonsei Medical Journal 1998;39(3):229-235
Although stroke is a great public health challenge in Korea, there have have been few epidemiologic studies of the risk factors stroke. A case-control study was performed to evaluate the risk factors for hemorrhagic stroke in Wonju, Korea. Ninety-five subarachnoid hemorrhage (SAH) and 102 intracerebral hemorrhage (ICH) patients aged 21-86 years, and 267 controls were recruited among the inpatients of Wonju Christian Hospital during 1994-1995. Information was gathered through interview and examinations. After adjustment for age and sex, family and past history of hypertension, drinking habits, age of menarche, height, weight, body mass index, waist and hip circumference, earlobe crease, prothrombin time, white blood cell count, hemoglobin, and total cholesterol were all found to be significantly associated with both SAH and ICH. The risk factor significantly associated only with ICH was smoking habits. In multiple logistics analyses, the independent risk factors for SAH and ICH were the same. Those included family and past history of hypertension, age of menarche, earlobe crease, prothrombin time, white blood cell count, hemoglobin and total cholesterol. In general, the risk factors for SAH and ICH were similar with each other, except smoking habits. Risk factors found in this study congruent with previous studies were family and past history of hypertension, drinking habits, body mass index, prothrombin time, white blood cell count, and hemoglobin. Those incongruent or rather newly found were age of menarche, a big physique, earlobe crease, and total cholesterol.
Adult
;
Case-Control Studies
;
Cerebral Hemorrhage/etiology*
;
Cerebrovascular Disorders/etiology*
;
Female
;
Human
;
Korea
;
Male
;
Middle Age
;
Risk Factors
;
Subarachnoid Hemorrhage/etiology*
9.Comparison of Anterior Capsule Opening after Silicone Intraocular Lens Implantation with and without Capsular Tension Ring.
Hee Jong CHEON ; Sang Yeop LEE ; Tae Min BAEK ; Kyung Hun LEE
Journal of the Korean Ophthalmological Society 2000;41(11):2349-2356
To evaluate the effect of capsular tension ring on prevention of capsular opening reduction induced by CCC in Phacoemulsification with silicone intraocular lens implantation, we prospectively studied 60 patients (60 eyes)who were operated from Sept, 1997 to Jun, 1998 at our hospital.All patients had standardized Phacoemulsification, continuous curvilinear capsulorhexis, and intraocular lens implantation performed by the same surgeon.Patients were randomized into two groups based on capsular tension ring insertion.We compared uncorrected visual acuity (UCVA), spherical equivalent (SE), astigmatism and the data obtained by the Anterior Eye Segment Analysis System (EAS-1000), anterior chamber depth, IOL tilting, decenteration, and anterior capsule opening area at 1 week and 1, 3, 6 months after surgery.Two groups showed a similar pattern of change of UCVA, SE and astigmatism. There are no statistical significances in comparison of anterior chamber depth and IOL decenteration in two groups, but IOL tilting of group II is greater than that of group I at 6 months after surgery.The mean anterior capsular opening area at 1, 3, 6 months postoperatively was smaller than that of 1 week in two groups, but no statistical significances were observed in group II (1, 3, 6 months, P = or > .05).The mean percentage reduction of group I was significantly smaller than that of group II at 3 and 6 months (P<.05)after surgery.Capsular tension ring might prevent a contraction of capsular opening and might enhance the stability of IOL.
Anterior Chamber
;
Anterior Eye Segment
;
Astigmatism
;
Capsulorhexis
;
Humans
;
Lens Implantation, Intraocular*
;
Lenses, Intraocular*
;
Phacoemulsification
;
Prospective Studies
;
Silicones*
;
Visual Acuity
10.Sequence and Phylogenetic Analyses of the M and S Genomic Segments of Hantaan and Seoul Viruses.
Ki Joon SONG ; Sang Hyun KIM ; Jong Hun KIM ; Young Eun LEE ; Luck Ju BAEK ; Yong Ju LEE ; Jin Won SONG ; Jeong In YANG
Journal of the Korean Society of Virology 1998;28(4):327-335
Hantaan (HTN) and Seoul (SEO) viruses, murid rodent-borne hantaviruses, are known to causes hemorrhagic fever with renal syndrome (HFRS) in Korea. To determine the genomic diversity and molecular phylogeny of HTN and SEO viruses found in Korea, we amplified for part of M and S genomic segments of hantaviruses from sera of HFRS patients and lung tissues of hantavirus seropositive striped-field mice. Both M and S segment of 16 HTN and 2 SEO viruses were amplified by nested reverse transcripton-polymerase chain reaction. Based on 324 nucleotides in the M genomic segment, the HTN and SEO strains showed 93.8~100% and 99.1~99.4% homologies, respectively. Similarly, based on 230 nucleotides in the S genomic segment, HTN and SEO strains showed 90.9~100% and 100% homologies, respectively. Phylogenetic analysis of M and S segments indicated that HTN strains could be divided into at least two main groups in M and S trees and the sequence differences detected among the S and M genomic segments of HTN viruses are consistent with reassortment having taken place between HTN virus strains.
Animals
;
Hantavirus
;
Hemorrhagic Fever with Renal Syndrome
;
Humans
;
Korea
;
Lung
;
Mice
;
Muridae
;
Nucleotides
;
Phylogeny
;
Seoul virus*
;
Seoul*