Publications (8)13.96 Total impact
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Article: Symptomatic spinal epidural lipomatosis with severe obesity at a young age.
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ABSTRACT: Symptomatic spinal epidural lipomatosis is a rare disorder characterized by overgrowth of fat in the extradural space. Most patients have an underlying endocrine disorder, such as Cushing's syndrome, or have taken exogenous steroids chronically. Although less common, obesity alone is thought to be a cause of spinal epidural lipomatosis, representing <25% of reported cases. Patients rarely become symptomatic before middle age without chronic exogenous steroid use. The usual clinical manifestations are similar to degenerative lumbar stenosis with neurogenic claudication, resulting in decreased walking and standing endurance with variable neurological deficits.This article describes 2 unique cases of spinal epidural lipomatosis, both in young patients with underlying morbid obesity who presented with acute progressive leg weakness and urinary retention. The patients had no underlying endocrinopathy, nor any history of exogenous steroid use. They underwent emergency laminectomy and removal of epidural fat, and histopathological examination confirmed the diagnosis of epidural lipomatosis. Postoperatively, the patients demonstrated significant improvement.We conducted a review of the available English literature and compared the age distribution in each group. Based on our review, our 2 patients are considerably younger than those in past reports, especially in the patient group to which the steroid was not administered. In addition, few cases exist of spinal epidural lipomatosis with acute sphincter dysfunction and paraparesis. Our cases suggest that morbid obesity can lead to juvenile spinal epidural lipomatosis with acute neurological changes.Orthopedics 01/2011; 34(6):233. · 2.66 Impact Factor -
Article: The relationship between anemia at admission and outcome in patients older than 60 years with hip fracture.
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ABSTRACT: We have reported that the functional outcome in elderly with hip fracture is related to age at admission, dementia, and anemia. In this study, we examined the relationship between hemoglobin level at admission and walking ability, as well as survival outcome at discharge. We studied 394 patients aged 60 years or older treated at our hospital for hip fracture since 1997. Anemia was defined as an admission hemoglobin level <13.0 g/dl for men and <12.0 g/dl for women. The relationships between anemia status with age at admission, gender, fracture type, residence before injury, walking ability at discharge, length of hospital stay, and survival outcome were analyzed. Anemia was observed in 266 of 394 patients. Univariate analysis identified no relationship between the status of anemia and age, gender, walking ability before injury, treatment modality, or length of hospital stay. On the other hand, 106 of 266 patients in the anemic group were residing in institutions, and as many as 72.9% of patients in the anemic group had trochanteric fracture. For walking ability at discharge, 92 of 128 patients without anemia were ambulatory compared with only 130 of 266 patients with anemia, with a significant difference between the two groups. Furthermore, there were 15 in-hospital deaths in the anemic group compared with one death in the nonanemic group. Multivariate analysis identified three independent items: age, fracture type, and walking ability at discharge, as related to the status of anemia. Hemoglobin level at admission is related to outcome in patients with hip fracture.Journal of Orthopaedics and Traumatology 09/2009; 10(3):119-22. -
Article: Resorption of thoracic disc herniation. Report of 2 cases.
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ABSTRACT: The authors describe 2 cases of thoracic disc herniation, resulting in acute myelopathy without bladder dysfunction or progressive muscular weakness; the herniated disc apparently resorbed without surgical intervention. Thoracic disc herniations are less frequent than cervical or lumbar disc herniations and are usually associated with severe neurological deficits. In these 2 cases, the herniated discs exhibited marked decreases in size, corresponding to a favorable clinical outcome within a few months after the initiation of conservative treatment with prostaglandin E(1) and/or steroids in conjunction with physical therapy. The authors conclude that thoracic herniated discs are capable of undergoing natural resorption and that conservative treatment could be indicated, even in the presence of moderate myelopathy, when the myelopathy is not accompanied by bladder dysfunction or progressive muscular weakness.Journal of Neurosurgery Spine 04/2008; 8(3):300-4. · 1.53 Impact Factor -
Article: Comparison of the prognosis among different age groups in elderly patients with hip fracture.
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ABSTRACT: The outcome of treatment of hip fractures in different age groups in the elderly population is largely unknown. Hence, we stratified elderly patients with hip fracture into age groups and compared the prognosis in various age groups. Among 459 patients with hip fracture treated at our hospital from 1997, 430 patients aged 65 years or above at the time of injury were studied. The patients comprised 98 males and 332 females and the ages at injury ranged from 65 to 103 years (mean 83.4 years). There were 167 cases of femoral neck fracture and 263 cases of trochanteric fractures. Surgery was performed in 383 cases, while 47 cases were treated conservatively. The subjects were classified by age into young-old for those aged 65-74 years (group A, n = 55), middle-old for those aged 75-84 years (group B, n = 172), old-old for those aged 85-94 (group C, n = 180), and oldest-old for those aged 95 years or above (group D, n = 23). The functional and survival prognosis at discharge in each group was investigated. Numbers of patients who were ambulatory at discharge among those ambulatory before injury were 43 of 49 (87.8%) in group A, 113 of 152 (74.3%) in group B, 86 of 138 (62.3%) in group C, and 5 of 14 (35.7%) in group D, showing worse recovery of walking ability as age advanced. Among those ambulatory before injury, 42 patients in group A, 139 patients in group B, 130 patients in group C, and 12 patients in group D underwent surgery and of these patients, 38 patients (90.5%) in group A, 109 patients (78.4%) in group B, 83 patients (63.8%) in group C, and 5 patients (41.7%) in group D were ambulatory at discharge. On the other hand, the numbers of patients who were ambulatory at discharge among those receiving conservative treatment were 5 of 7 (71.4%) in group A, 4 of 13 (30.8%) in group B, 3 of 8 (37.5%) in group C, and 0 of 2 (0%) in group D, showing better walking ability in surgical patients than in conservatively treated patients even in the elderly. There were two in-hospital deaths in group B, 11 in group C, and two in group D. Five of the 15 deaths were inoperable cases due to poor performance status at admission. Walking ability at discharge and survival prognosis worsened as age advanced. On the other hand, since surgical cases achieved better walking ability than conservatively treated cases, efforts should be made to achieve better functional prognosis even in the old-olds, including surgery together with early ambulation and rehabilitation.Indian Journal of Orthopaedics 01/2008; 42(1):29-32. · 0.50 Impact Factor -
Article: A simple scoring system to predict ambulation prognosis after hip fracture in the elderly.
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ABSTRACT: We conducted a study on elderly patients with hip fracture to examine whether it is possible to predict the ambulation status of these patients upon hospital discharge. One hundred and eighty six patients with femoral neck or trochanteric fracture, who were ambulant prior to fracture, were studied. Thirteen factors that may affect walking ability were selected and subjected to multivariate analysis. Of 186 patients, 145 regained walking ability at discharge. Factors significantly affecting walking ability at discharge were (1) anemia, (2) dementia and (3) abnormal chest X-ray. Each patient was scored on the basis of the above factors (1 = yes, 0 = no), and the total was used as the predictive score. A simple scoring system composed of these three factors was useful for the prediction of [corrected] the ambulation status upon hospital discharge.Archives of Orthopaedic and Trauma Surgery 10/2007; 127(7):603-6. · 1.37 Impact Factor -
Article: Pseudogout attack induced during etidronate disodium therapy.
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ABSTRACT: We report the first case of pseudogout attack in the distal interphalangeal (DIP) joints during etidronate disodium therapy. A 64-year-old woman had intermittent administration of etidronate disodium (Didronel; Sumitomo, Osaka, Japan) alone because of osteoporosis. Each cycle consisted of a daily dose of 200 mg for 2 weeks, repeating every 12 weeks. Two weeks after completing the third cycle, severe pain and swelling occurred in the DIP joints of the right middle, ring, and left ring finger; and skin ulcer formation was observed on the dorsal side of the DIP joints of the right middle and ring fingers as well as the left ring finger. Because monoclinic calcium pyrophosphate crystals were detected in the synovial fluid from the DIP joints of the right middle finger, we diagnosed these symptoms as induced by pseudogout attack. Oral loxoprofen sodium at a daily dose of 180 mg resulted in rapid symptom resolution. A decrease in function of calcium metabolism in elderly persons has been reported to be a cause of pseudogout attack. On the other hand, distal interphalangeal joint arthritis presenting as Heberden's nodes is a common condition in elderly patients. Therefore, pseudogout attack should be considered as an adverse drug reaction when administering bisphosphonate in elderly patients with Heberden's nodes.Modern Rheumatology 02/2006; 16(2):117-9. · 1.58 Impact Factor -
Article: Arthroscopic surgery for septic arthritis of the hip joint in 4 adults.
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ABSTRACT: PURPOSE: Arthroscopic surgery for septic coxarthritis has not become a well-established technique despite its minimally invasive nature. The authors performed arthroscopic surgery and intraoperative high-volume irrigation on 4 adult patients with septic coxarthritis. This minimally invasive procedure was successful in treating these patients, and there was no recurrence of arthritis or other complications. The purpose of this article is to introduce this 3-directional-approach method of arthroscopic surgery for septic coxarthritis. Type of Study: Case study of arthroscopic surgery for septic arthritis of the hip joint in 4 adults. METHODS: There were 3 women and 1 man with an average age of 58 years. The length of time from onset of symptoms to surgery averaged 36 days. One patient had diabetes; another had subarachnoid hemorrhage and was being treated with steroidal drugs. The etiologic agent was found to be Staphylococcus aureus infection in 2 patients, Serratia sp. in 1 patient, and group-B Streptococcus in 1 patient. Three-directional-approach arthroscopic surgery and intraoperative high-volume irrigation were performed using 20 to 25 L of physiologic saline on the 4 patients. Continuous postoperative intra-articular irrigation was not performed. RESULTS: Inflammatory reactions subsided within 4 weeks of surgery in 3 of the 4 patients and within 6 weeks in the other patient. At the time of the final examination, the postoperative follow-up period ranged from 1 to 6 years and none of the patients had ankylosis of the hip joint. CONCLUSIONS: Three-directional-approach arthroscopic surgery in combination with intraoperative large-volume irrigation is an effective technique for treating septic arthritis of the hip joint because the joint can be preserved and it is less invasive than other open arthrotomy techniques.Arthroscopy The Journal of Arthroscopic and Related Surgery 04/2001; 17(3):290-297. · 3.02 Impact Factor -
Article: Prospective analysis of clinical evaluation and self-assessment by patients after decompression surgery for degenerative lumbar canal stenosis.
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ABSTRACT: Objective measures including neurological findings, radiographic evaluation, and the Japanese Orthopaedic Association (JOA) score are commonly used for the evaluation of surgical outcomes. Because many surgeries are performed primarily to improve quality of life, a patient's subjective evaluations are also important for accurately assessing surgical outcomes. Currently available instruments for assessing quality of life include the Short-Form 36 (F-36), the Oswestry disability index (ODI), and the visual analog scale (VAS) clinical pain scale. The aims of this study were to measure surgical outcomes by using both objective measures and subjective measures including patient self-assessments and psychological changes; to assess the adequacy of the JOA alone for measuring outcome; and to determine which measures, the SF-36v2, ODI, VAS, or JOA correlate with the VAS pain scale score in lumbar canal stenosis. We performed a prospective study to measure surgical outcomes for lumbar canal stenosis using traditional objective measures such as neurological findings and subjective measures such as performance of ADLs, patient self-assessments, and psychological changes. Forty-two surgical patients with a mean age of 66.8+/-10.9 years at the time of surgery were included in the study. All cases were followed for more than 2 years. Surgical indications included no response to conservative treatment and neurological deterioration. Neurological symptoms were classified as nerve root type, cauda equine type, or combined type. We performed surgical decompression at the location of the dural or root indentation by myelography. The concomitant diagnosis causing the spinal stenosis was degenerative spondylolisthesis in 20 cases undergoing posterolateral fusion with pedicle screws. Surgical outcomes were assessed by comparing preoperative and 24-month postoperative JOA scores for low back pain, SF-36v2, ODI-v2, and VAS scores. Statistical analysis was performed by using the analysis of variance. A p value<0.05 was considered statistically significant. Objective clinical measures, patient self-assessments, and psychological changes were measured before and at 24 months postoperatively. We also examined which measurements correlated with the VAS scale for pain evaluation, thereby relating patient satisfaction to surgery outcome. All JOA, SF-36v2, ODI-v2, and VAS scores significantly improved postoperatively. The physical component summary (PCS) of the SF-36 v2 showed significant improvement, although all scores remained less than the Japanese norm-based scores (NBSs). The mental component summary (MCS) exhibited such a significant improvement that all postoperative subscales were higher than the Japanese NBS. JOA scores significantly correlated only with postoperative lower-extremity VAS score. All PCS and two MCS scores significantly correlated with the VAS score for low back pain. Parts of the PCS and MCS significantly correlated with the lower-extremity VAS. The ODI significantly correlated with both the preoperative and postoperative VAS scores for low back pain as well as with the postoperative lower-extremity VAS score. The JOA, SF-36, ODI, and VAS questionnaires are all useful instruments for measuring surgical outcomes. The VAS score is a better assessment of physical rather than mental health. The ODI is more reflective of patients' subjective symptoms. Finally, the SF-36 is particularly informative because it includes questions addressing both psychological and physical status. Therefore, when combined, the SF-36v2, VAS, and ODI scores are a valuable complement to the JOA scores in evaluating outcomes of surgery for lumbar canal stenosis.The Spine Journal 8(2):380-4. · 3.29 Impact Factor
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2008
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Yamanashi University
Kōfu-shi, Yamanashi-ken, Japan
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