To evaluate the characteristics of MR findings in osteomyelitis, retrospective MR image interpretations were made in 18 patients with osteomyelitis proved either either by surgery(n=17) or clinical course(n=1). Osteomyelitis was acute in five patients, subacute in five, chronic in seven, and healed in one. Area of active inflammation had low marrow marrow signal intensity on T1-weighted images, high signal intensity on T2-weighted images inhomogeneously. It has been said that morrphologic characteristics of osteomyelitis in MR improved the accuracy in diagnosis of osteomyelitis and that gadolinium enhanced MR image further assisted in the planning of surgery. Out study was performed to observe the signal intensity change or morphologic change of bone marrow, cortex, periosteal reaction, and soft tissue which are specific for osteomyelitis. Multiple inhomogensous round marrow lesions were noted with central high signal intensity and peripheral low signal intensity on T1-weighted images, and central low signal intensity and peripheral high signal intensity on T2 weighted images in two patients. Intra and extraosseous abscesses showed rim enhancement after gadopentetate dimeglumine injectron. The signal intensity of the relatively higher than the internal area of the abscess on T1-weighted images. Cortical bone destruction showed high signal intensities T2-weighted images with destruction patterns of fine radial, circumferential, vertical or wedge shaped. MR imaging, by displaying specific signal intensities and morphological changes of bone marrow, cortex, periosteal reaction and soft tissue, would be an aid in early diagnosis and in planning for appropriate conservative and operative therapeutic procedures for osteomyelitis.
Abscess ; Bone Marrow ; Diagnosis ; Early Diagnosis ; Extremities* ; Gadolinium ; Gadolinium DTPA ; Humans ; Inflammation ; Magnetic Resonance Imaging* ; Osteomyelitis* ; Retrospective Studies

No abstract available.
Synovitis, Pigmented Villonodular*

There are many problems in treatment of intertrochanteric fractures due to osteoporosis and unstable pattern of fractures in old ages and they are different from those in young ages, for example, type of fracture, degree of osteoporosis, and general condition, ect. Anthors studied about the prognostic factors of 42 cases among 88 patients with intertrochanteric fractures, who were treated and followed up from Jan. 1982 to Dec. 1987. 1. The patients under 50 years old were mainly males(94.4%) and its chief cause of injury was traffic accident or fall down(72.2%). The cause of injury over 50 years old was slip down on ground(62.9%). 2. The osteoporosis was increased according to increased age of patients and then the unstable type of fracture was increased. In yaung patients, the unstable intertrochanteric fracture was rare despite of high violent injury. 3. The bone union of the follow-up patients was gained at average 13.8 weeks. 4. The sliding degree of lag screw was increased with unstable fracture and the incidence of metal protrusion into joint cavity was increased in the patients of eccentric fixation of lag screw into femoral head. 5. The all cases of complication were occured in osteoporotic patients over 50 years old and their causes were inadequate fixation of unstable fracture. 6. The most important factors in prognosis of intertrochanteric fractures are initial pattern of fractures, degree of osteoporosis and adequacy of reduction state(postop.).
Accidents, Traffic ; Follow-Up Studies ; Head ; Hip Fractures ; Humans ; Incidence ; Joints ; Osteoporosis ; Prognosis

PURPOSE: We evaluated the usefulness of quantitative spiral CT to predict postoperative lung function in patients undergoing pulmonary resection. MATERIALS AND METHODS: Fourteen patients in whom pneumonectomy or segmentectomy were performed underwent preoperative chest spiral CT and pulmonary function test(PFT). Six patients underwent postoperative follow-up PFT. Ten patients underwent preoperative radioisotope(RI) lung perfusion scan. Preoperative CT data were postprocessed with contiguous pixel method ranged from -9107HU to -500HU to quantify total functional lung volume(TFLV) and regional volume to be resected(RFLV). Postoperative lung function was predicted by following formula;Predicted postoperative PFT value=preoperative PFT x 1-RFLV/TFLV). CT predicted value was compared with postoperative measured PFT value and those value of RI perfusion scan. RESULTS: CT predicted values were very close to postoperative measured value and RI predicted value, and were correlated well with postoperative measured values (FVC: r=0.988, P<0.001 ;FEV1: r=0.994, P<0.001) and RI predicted values (FVC :r=0.976, P<0.001 ;FEVl: r=0.974, p<0.001). CONCLUSION: Quantitative spiral CT was useful to predict postoperative lung function and could be an effective alternative to RI perfusion scan.
Follow-Up Studies ; Humans ; Lung* ; Mastectomy, Segmental ; Perfusion ; Pneumonectomy ; Thorax ; Tomography, Spiral Computed*

No abstract available.
Mandible* ; Osteoblastoma*

No abstract available.
Mandible* ; Osteoblastoma*

While there is little controversy about the surgical resection for the torn discoid lateral meniscus, there are some contradictory reports for the treatment of discoid lateral meniscus without tear. Some authors argue that initial treatment should be observation after diagnostic arthroscopy in the cases without tear. Others reported that excellent results were obtained after partial resection of the discoid lateral meniscus without tear or with slight degeneration. We reviewed our series of symptomatic discoid lateral menisci without tear, confirmed by arthroscopic examination. We retrospectively reviewed 8 knees in 8 patients who had had partia! Meniscectomy for discoid latera1 meniscus without tear, confirmed by arthroscopic examination. They were 5 males and 3 females. The average age was 22.8 years (range, 7 to 57 years). The average duration of follow-up was 2 years and three months. The patients had continuing pain and locking or snapping preoperatively. Preoperative MRI had grade Il intrameniscal signal in all the cases. The patients were evaluated hy Lysholm pain score and total Lysholm score. There were 7 complete types and one incomplete type. The average Lysholm pain score and the total Lysholm score improved from 13.1, 67.8 preoperatively to 28.8. 97.9, at the last follow-up, respectively. Mechanical symptoms including click and 1ocking were disappeared in all, and no complication was obser ved. We suggest that symptomatic discoid lateral meniscus should he resected e.ven though there is no tear visible on arthroscopy, especially when the MRl shows grade lI intrameniscal signal.
Arthroscopy ; Female ; Follow-Up Studies ; Humans ; Knee ; Magnetic Resonance Imaging ; Male ; Menisci, Tibial* ; Retrospective Studies

No abstract available.
Dislocations* ; Knee Joint* ; Knee*

Most loci associated with type 2 diabetes mellitus (T2DM) discovered to date are within noncoding regions of unknown functional significance. By contrast, exonic regions have advantages for biological interpretation.

Most loci associated with type 2 diabetes mellitus (T2DM) discovered to date are within noncoding regions of unknown functional significance. By contrast, exonic regions have advantages for biological interpretation.