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Myung-Sang Moon

Publications and source records attributed to Myung-Sang Moon.

7 recordsLinked to original sources

Treatment of dens fracture in adults: A report of thirty-two cases.

Thirty-two adult patients with dens fractures (30 type II and 2 type III) were treated from 1983 to 2002 at the authors' institutions. The age of the patients ranged from 23 to 58 years. The postoperative follow-up period ranged from 1 to 10 years. The objective of this retrospective study was to evaluate the effectiveness of the osteosynthesis after screw fixation and postoperative bracing. In the 32 cases, 19 patients underwent single screw and 13 underwent double screw fixation. Postoperatively, light head halter traction was applied with the patients in bed for 1 to 4 weeks followed by a halo-vest for 8 to 14 weeks. Fractures healed in 9 weeks on average. There were no cases of delayed union. The overall results were excellent in 26 cases (81.3%), good in 5 (15.6%), and fair in 1 (3.1%) patient (who had a type Il fracture). There were no difference in dens union patterns between those receiving one-screw and two-screw fixation, and there were no complications during or after the operative procedure. Postoperatively there were no restriction of motion in the neck and no residual neck pain. Direct osteosynthesis of the fractured dens with screws is an effective procedure for unstable type II and III fracture of the dens. Postoperative external immobilization with a cervical brace seems to be an important contributing factor to the equal fusion rates in both groups of patients.

Adult↗

Pott's paraplegia in patients with severely deformed dorsal or dorsolumbar spines: treatment and prognosis.

STUDY DESIGN: Pott's paraplegic patients with severe spinal deformity were reviewed retrospectively after being treated with chemotherapy and/or decompressive surgery. OBJECTIVES: To determine the most appropriate treatment protocol and to predict the prognosis for Pott's paraplegics with severe spinal deformity. SETTING: Catholic University of Korea Medical Center and Moon-Kim's Institute of Orthopedic Research, Seoul, Korea from 1971 to 1996. METHOD: In this study, there were 33 patients (eight children and 25 adults), ranging from 13 to 56 years of age. They developed spinal tuberculosis at the age of 9 years (range, 2-29 years), and remained neurologically symptom free from an average of 16 years (range, 4-27 years). Four adults who responded well to treatment initially suffered relapses of paraplegia. Only six patients had previously received a full course of triple chemotherapy. Seven (two children, five adults) had healed disease, and 26 (six children, 20 adults) had active disease. Eleven cases had frequent drainage from the sinuses. Kyphoscoliosis was found in 11 patients: four children and seven adults. The remaining patients had kyphosis only. Among the 26 patients with active tuberculosis, 10 had triple chemotherapy itself and the rest had additional decompression surgery (10 anterior and six posterior). All seven patients with healed tuberculosis were subjected only to surgery (two anterior and five posterior). RESULTS: In seven patients with healed tuberculosis, surgery did not improve neurologically except in one child patient. In four patients, the severity of paralysis remained unchanged and two patients, deteriorated neurologically after surgery. In six children with active tuberculosis, there were remarkable neurological recoveries by either conservative treatment or surgical decompression. Seven adults with active tuberculosis recovered slowly, improving by one or two Frankel grades (three Frankel C, three D, one E). In 11 out of 13 surgically treated adults with active disease, paralysis that had persisted for less than 3 months gradually improved by one or two Frankel grades. One Frankel A and one Frankel B paraplegic patients who had paralysis that had lasted through 6 months did not recover after surgery. CONCLUSION: The neurological recovery of Pott's paraplegics with severe spinal deformity resulted in three different outcomes: (1) severe deformity is different from moderate and mild deformities; (2) patients with healed tuberculosis had poorer prognosis than patients with active tuberculosis; (3) children had better prognosis than adults. Furthermore, patients with paralysis persisting over 6 months did not recover neurologically after surgery.

Adolescent↗

Conservative treatment of tuberculosis of the lumbar and lumbosacral spine.

Fifty-six adults (average age, 38 years) with active tuberculosis of the lumbar and lumbosacral spine were treated conservatively with triple chemotherapy for 12 to 18 months. The minimum followup was 3 years. Three methods of assessments of the chronologic changes of sagittal spinal deformity were used on lateral radiographs of the lumbar spine obtained with the patient standing: deformity, kyphos angles, and total lumbar lordosis. The lumbosacral joint angle was measured for tuberculosis of the lumbosacral joint. The disease healed in all patients with a minimum increase of kyphosis, although in 23 patients there was minimal new involvement of the adjacent vertebral bodies within 6 months of treatment. The pattern of the involved vertebral body collapse in tuberculosis of the lumbar and lumbosacral joints was vertical (telescoping), along a longitudinal axis that minimized the progression of kyphosis. The outcome was judged on the basis of residual kyphosis (British Medical Research Council criteria) and found to be favorable in 96.4% (54 patients). Triple chemotherapy for lumbar and lumbosacral tuberculosis is effective in curing the disease and in minimizing the residual kyphosis through early diagnosis and immediate initiation of chemotherapy. The pattern of vertebral body collapse is the telescoping type, which is the determining factor in minimizing residual spinal deformity.

Adult↗

Strenuous walking exercise and spontaneous fracture of the femoral neck in the elderly.

Spontaneous fractures of the hip which developed after strenuous walking exercise in 8 elderly people are reported. All patients had Singh hip index 4 or below at the time of initial examination and walked from 8,000 to 10,000 steps per day. This presentation aims to arouse the attention of physicians, recreational sports coaches, and elderly people to the deleterious effects of strenuous walking exercise on bone, and it looks for an optimal level of walking exercise according to the elderly patient"s bone quality. Walking exercise should be stopped immediately if pain in the hip develops and continues without relief for several days or more. The optimal walking frequency per day should be prescribed on the basis of the Singh index or T-score of BMD. If the BMD is 1/3 to 1/2 of normal, walking frequency should be adjusted to 1/3 to 1/2 of those of the normal adult with good bone quality.

Journal Article↗