One case of osteoid osteoma in the lamina of the fifth lumbar spine with hamstring muscle tightness was experienced and successfully treated by surgery at the department of orthopedic surgery in Seoul National University Hospital. Literature on the subject was reviewed in detail.
Muscle Tonus ; Orthopedics ; Osteoma, Osteoid ; Seoul ; Spine

Marfan Syndrome is a rare congenital disease characterized by the abnormalities of Sheletal system, eye and cardio-vascular system which was initially desiribed by Marfan in 1896. One case of marfan syndrome was treated at the department of Orthopedic Surgery, College of Medicine, Seoul National University for multiple skeletal deformities. Moderate degree of scoliosis was treated with Milwaukee brace and finger deformities with Z-plasty and full thickness skin graft.
Braces ; Congenital Abnormalities ; Fingers ; Marfan Syndrome ; Orthopedics ; Scoliosis ; Seoul ; Skin ; Transplants

Two hundreds cases of spine tuberculosis were treated surgically for the period of 7 years between 1970 and 1976 at Seoul National University Hospital and following results were obtained. 1. Many patients failed to be treated with conservative method. Spontaneous fusion was found in 10% of 200 cases with long duration of disease. Anterior fusion was performed in 166 cases and posterior fusion was carried out in 34 cases. In those 34 cases, anterior currettage was combined in 7 cases, anterior fusion combined in 19 cases in which 7 cases were performed anterior and posterior fusion at one stage. Posterior fusion alone was carried out only in 8 cases. 2. Anterior fusion is indicated for: a. decompression in cord involvement b. confirmation of diagnosis c. involvement of one joint space in children d. mild to moderate kyphosis in adult 3. Anterior and posterior fusion is indicated in: a. severe kyphosis for solid funsion b. involvement of more than two joint spaces in children to prevent increasing kyphosis c. one stage operation was technically possible and has many advantages 4. Posterior fusion is indicated in: a. poor general condition b. technically difficult cases.
Adult ; Child ; Decompression ; Diagnosis ; Humans ; Joints ; Kyphosis ; Methods ; Seoul ; Spine ; Tuberculosis

We assessed the accuracy of Goldmann or Schi-(phi)tz tonometric readings in the gas filled vitrectomized eyes. We performed pars plana vitrectomy with or without lensectomy in 8 rabbit eyes, and in 6 enucleated porcine eyes. Fluid-air exchange was done at the end of the procedure. Intraocular pressure was measured using Goldmann tonometer and Schi-(phi)tz tonometer and was compared with true pressure which was monitored by manometer with indwelling catheter in the intravitreal cavity. Goldmann and Schi-(phi)tz tonometry always showed lower presure value than manometeric one(P<0.05) and the discrepancy was greater at higher range of intraocular pressure. Between these two methods Goldmann tonometry was more accurate in the rabbit eye (P>0.05).
Catheters, Indwelling ; Intraocular Pressure* ; Manometry ; Reading ; Vitrectomy

Illumination and access of instruments to peripheral fundus are limited by lens in phakic vitrectomy. The purpose of this study was to determine if curved endoilluminator could enhance visibility of peripheral fundus in phakic virectomy. Ten consecutive cases of pars plana vitrectomy were done for vitreous opacity. Indirect laser photocoagluation was done to make four reference points of distance from optic disc to nasal ora serrata. We evaluated the respective extent of nasal peripheral view with the use of curved or straight endoilluminator which was inserted through temporal scleral port. When compared with the straight endoilluminator, the curved endoilluminator enhanced the visualization of peripheral fundus(p<0.05). A curved endoilluminator may be a useful surgical adjunct during the phakic vitrectomy and other advantages and disadvantages of its use are discussed.
Lighting* ; Retinaldehyde* ; Vitrectomy*

Choroidal detachment after retinal detachment surgery is relatively common but preoperative choroidal detachment is very rare. We reviewed three cases of choroidal detachment associated with primary rhegmatogenous retinal detachment to see whether there were common features that may be of help in early diagnosis and treatment. The patients were elderly and presented with markedly decreased vision, profound hypotony and inflammatory cells in anterior chamber. Indirect ophthalmoscopy revealed rhegmatogenous retinal detachment with choroidal detachment and proliferative vitreoretinopathy. They were treated with preoperative and postoperative steroid and undergone surgery including vitrectomy. The follow-up periods were 8, 6 and 2 months respectively. Choroidal detachment disappeared, successful reattachment of retina was achieved and corrected visual acuity was improved in all cases. Choroidal detachment associated with rhegmatogenous retinal detachment seems to be associated with hypotony, intraocular inflammation and unstable vascular system. Careful assessment and proper management including surgical procedure seem to improve its prognosis.
Aged ; Anterior Chamber ; Choroid* ; Early Diagnosis ; Follow-Up Studies ; Humans ; Inflammation ; Ophthalmoscopy ; Prognosis ; Retina ; Retinal Detachment* ; Retinaldehyde* ; Visual Acuity ; Vitrectomy ; Vitreoretinopathy, Proliferative

The prognosis of infectious endophthalmitis has improved considerably in recent years with refinements in early diagnosis, proper antibiotic therapy and vitreous surgery. But the disease is still potentially catastrophic in spite of proper intervention. The purpose of this study was to evaluate the effect of continuous intravitreal irrigation(lavage) after vitrectomy and lensectomy in intractable endophthalmitis. We injected cultured Pseudomonas(1.5 X 10(5)organism/0.1ml) into the anterior chamber or vitreous cavity of 11 rabbits. In both experimental group(8 eyes) and control group(3 eyes), vitrectomy and lensectomy was done 12 hours after inoculation. In the experimental group, silicone tube was installed thru pars plana sclerotomy site as an infusion and drainage port. Vitreous cavity was irrigated for 3 days with normal saline(1000 ml/day) mixed with amikacin (10 mg/day) and dexamethasone(60 mg/day) via this silicone tube. In the control group, we injected 0.1 ml amikacin(100 microgram/0.1 ml) into vitreous cavity at the end of operation and on daily basis for 3 days. Both groups underwent subconjunctival(25 mg/day) and intramuscular (25 mg/kg/day) injection of amikacin for postoperative 3 days. Electroretinograms of two experimental eyes were taken to evaluate retinal toxicity. On postoperative 7th day, all eyes were enucleated to evaluate inflammatory and toxic changes with light microscope. Electroretinograms of experimental eyes became extinguished on the 7th postoperative day. But we observed that the experimental group showed less inflammatory change than control group in the vitreous cavity and retina.
Amikacin ; Anterior Chamber ; Dexamethasone ; Drainage ; Early Diagnosis ; Endophthalmitis* ; Prognosis ; Rabbits ; Retina ; Retinaldehyde ; Silicones ; Vitrectomy

The subretinal neovascularization(SRN) is the leading cause of blindness in various retinal degenerative disease. Yet the mechanism of subretinal new vessel formation is not fully known. We induced SRN using laser photocoagulation in the rabbit and investigated the efficacy of various combinations of laser parameters. In the present study, eighteen eyes of nine pigmented rabbits underwent argon laser photocoagulation, with different settings of power, spot size, and exposure time, Fluorescein angiography was performed 1, 3 and 8 wks after photocoagulation to evaluate the development of SRN, and the light microscopic and electron microscopic examination was done to verify it at the 3rd and 8th week. The mean incidence of SRN was 48.6%, SRN developed with the highest incidence(67%) when using the setting of 1000mW, 0.2 sec, 250 micrometer (P<0.01). Intraoperative retinal hemorrhage increased the incidence of SRN up to 76.4%(P<0.05). Our result provides the most efficient laser parameters to induce experimental SRN in the pigmented rabbits.
Argon* ; Blindness ; Fluorescein Angiography ; Incidence ; Light Coagulation ; Rabbits* ; Retinal Hemorrhage ; Retinaldehyde

Little is known about the natural history and management of choroidal neovascularization (CNV) which developed as a complication of laser photocoagulation for central serous chorioretinopathy (CSC). We experienced two patients with CNV which developed after laser treatment for CSC. Submacular membranectomy was performed on both cases after the confirmation of subretinal CNV with optical coherence tomography. One patient received photodynamic therapy for recurrent CNV. The vision of both patients has been improved over 6 months of follow up. These cases suggest that active intervention, including submacular surgery, improves the visual prognosis of this condition.
Adult ; Choroid Diseases/*surgery ; Choroidal Neovascularization/etiology/*surgery ; Diagnostic Techniques, Ophthalmological ; Female ; Human ; Interferometry ; Laser Coagulation/*adverse effects ; Light ; Male ; Retinal Diseases/*surgery ; Tomography ; Treatment Outcome ; Visual Acuity

Multifocal choroiditis and panuveitis(MCP) is a clinical syndrome characterized by vitritis, and punched-out fundus lesions mimicking presumed ocular histoplasmosis. We diagnosed MCP in a twenty-eight years old woman with the complaint of decreased vision and floater symptom. Retinochoroidal anastomosis via one of retinochoroidal scars was noted in this case. The patient was treated with oral and periocular steroid and ws observed for 11 months during which choroidal neovascularization and macular edema ws not developed. We present this case because, as far as our knowledge goes, There has been no reported case of MCP with retinochoroidal anastomosis.
Choroid* ; Choroidal Neovascularization ; Choroiditis* ; Cicatrix ; Female ; Histoplasmosis ; Humans ; Macular Edema ; Panuveitis*