BACKGROUND: Some studies have considered the influence of body mass index (BMI) on the function following total knee replacement (TKR), but the cases were few and follow-up time is short in most of them.OBJECTIVE: To analyze the function outcome influenced by BMI after TKR. METHODS: A total of 320 osteoarthritis patients who were admitted in Department of Bone and Joint at Peking University People's Hospital, were involved in this study. They all received primary knee joint patellar resurfacing, including both knees replacement in 200 case of 520 knees, left 219 and right 301. The involved 320 patients underwent primary TKR performed by a single surgeon with the same type of prosthesis (Scorpio posterior stable prosthesis). The patients were divided into four groups based on obesity (overweight group, BMI 25.1-27.0 kg/m2; obese group, BMI 27.1-30.0 kg/m2; morbidly obese group, BMI > 30 kg/m2; control group, BMI < 25 kg/m2). According to the Hospital for Special Surgery (HSS) rating scale, their knee score and functional scores were recorded before replacement and at follow-ups, as well as maximal range of flexion and extension, complications. Preoperative and postoperative assessment was based on the HSS score. RESULTS AND CONCLUSION: A total of 320 patients received clinical recheck at 28.3 months (range 12-46 months). Compared with control group, patients in overweight, obese and morbidly obese groups had lower preoperative functional score (P < 0.05), but knee scores were not significantly different for any patient group. The postoperative mean HSS score of all the groups rose significantly at the last follow-up. These differences were not statistically significant among groups (P > 0.05). The rate of perioperative complications was significantly higher in the obese and morbidly obese patients (P < 0.05). Of the 181 knees in obese and morbidly obese patients, 14 knees (9.2%) had a wound complication, 1 knee (0.5%) had an infection, and 2 knees (1.3%) had an avulsion of the medial collateral ligament. The infected case developed within ten weeks after the operation, and was associated with a wound complication. Among 266 knees in the overweight patients, 6 knees (2.3%) had a wound complication. There was 1 knee (1%) of the 81 knees in the control group had a wound complication. No death or pulmonary embolism cases were observed in perioperative period. It is suggested that BMI has no obvious influence on the functional outcome following TKR in the short-term.

Diabetic Ketoacidosis (DKA) is a condition biochemically characterized by the combination of hyperglycemia, hyperketonemia and acidemia. The extracellular concentration of glucose and ketone bodies in human body can respectively increase 5 and 20 times as more as usual, and the pH of arterial blood can decrease below 7.0. Accumulation of gluccse, ketone bodies and hydrogen must be due to the imbalance of the rate of production, ulilization, and excretion of these substance. In DKA, the metabolism of several hormones and substances is probably involved in the initiation and maintenance of ketone body over-production. At present, 14 patients with DKA have been investigated and it has been found that relative insulin deficiency appears to be necessary, and the excess production of growth hormone, glucagon and catecholamincs (the urine adrenaline and noradrenaline were measured) may be also important in the pathogenesis of DKA.

0.05). The operation time in the intertrochanteric fracture group was significantly longer than the femoral neck fracture group (P

OBJECTIVE To improve the standardized management of medical waste disposal and prevent the spread of the disease to protect the human health.METHODS Establishing hospital monitoring committee of medical waste through the director of hospitce as the first responsible figure.The management system and education training for all levels staffs and inspection were established.RESULTS By making the management measures scientific and effective,it was praised by many patients and social departments for providing good diagnosing environment.CONCLUSIONS Improving the standardized management of medical waste disposal is an important messure to secure the prevention of hospital cross-infection and improve the quality of medical care.

The amount of ~3H-TdR incorporation into D?A of FRTL5 cells was expressed as CPM/?gD?A. THe responsibity of FRTL5 cells to stimulators such as TSH was expressed as % against thJ control CPM/?gDNA of the experimental group divided by that of the control. The responsibilities of FRTL5 cells which were recovered after being fr-o zen under-180℃ for a long time, to TSH 200?g/ml were 2741% and 3028% respectively, and the responsibilities of cells cultured in TSH media continuously for a long time, to TSH 200?u/ml and 2000?u/ml were 736% and 719% respectively. There was statistically significant differences between the two groups of the cells mentioned above. This showed that freezing FRTL5 Cells for a long time Such as 2 months was able to recover the decreased responsibility of the Cells due to a long continuous TSH culture.

BACKGROUND: Critical organ hypofunction and complications are common in elderly patients, so perioperative treatment becomes important for the success of total knee replacement (TKR).OBJECTIVE: To explore clinical perioperative complications of TKR in the patients over 70 years old. DESIGN, TIME AND SETTING: Retrospective analysis of case data was performed at First Hospital of Gannan Medical University and People's Hospital of Peking University from January to December 2002.PARTICIPANTS: 109 patients (168 knees), including 29 males and 80 females, underwent TKR. Of them, 50 underwent single knee surgery, aged (74.2±15.1) years (range 70-85 years), and 59 underwent bilateral knee surgery, aged (73.4±13.2) years (range 70-85 years). In addition, 92 cases (84.4%) were obesity, and 88 were complicated by internal diseases. METHODS: The surgery was performed by the same operator. All patients underwent patellar replacement with Scorpio posterior stable knee prosthesis. Knee anterior median incision and medial patellar approach was applied, and anterior and posterior cruciate ligaments were excised during the surgery, osteophyma and corpus liberum of posterior articular capsule were cleared. Patellofemoral joint track was tested until meeting the requirements. The prosthesis was fixed using antibiotics mixed with bone cement, and the incision was sutured at flexed position.MAIN OUTCOME MEASURES: Early complications following replacement; knee joint and functional evaluation.RESULTS: During surgery and 24 hours after replacement, 8 cases developed hypertension, 7 cases hypotension, and 6 cases arrhythmia. All patients safely passed the perioperative period under treatment of related departments. One case developed pulmonary embolism, 1 case deep infection, 3 cases pulmonary infection, 5 cases urinary system infection, 1 case rapid reduction of platelet caused by Subining, 1 case cognitive disturbance, and 1 case dislocation of knee joint (Charcot arthritis). According to standards of HSS, the knee joint scores were significantly improved from 26.1 prior to replacement to 82.0 at discharge, and function scores were significantly improved from 32.1 prior to replacement to 89.1 at discharge. During 12.4-month follow-up (range 3-22 months), 18 cases lost the follow up; the retention rate was 83.5%. Of 91 retention patients, knee pain disappeared or relieved, restored self-care ability, and no prosthesis loosening or infection was found. At the final follow up, the HSS knee joint scores were significantly improved from 82.0 at discharge to 85.4, and function scores were improved from 89.1 at discharge to 92.3 at discharge.CONCLUSION: Skilled operative technique and positive treatment of complication can effectively prevent perioperative infection, dislocation and other complications following total knee replacement.