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Open and comminuted mid-distal fractures often result from high-energy trauma, and a concomitant poor blood supply often leads to skin necrosis, infection, and bone union. To circumvent such complications, we used limited-reduction and bilateral-external fixators to treat open and comminuted mid-distal tibial fractures with compromised soft tissue. A retrospective series of 34 patients who had open and comminuted mid-distal tibial fractures and treated by bilateral-external fixators with limited-internal fixation were analyzed. Patients were followed for 10-25 months (mean 12 months) post-treatment and osseous union was achieved in each case. The average union time was 16.3 weeks. Based on the Johner- Wruhs criteria, the retrospective series consisted of 21 'excellent' cases, 8 'good' cases, 4 'fair' cases, and a 'poor' case. The total percentage of 'excellent' and 'good' cases of fracture recovery was 85.29%. Bilateral-external and limited-internal fixators pro- vided high bone union rate and excellent ankle-joint motion. Hence, it is an appropriate surgical approach for treating open and comminuted mid-distal tibial fractures with compromised soft tissue.This study aimed to investigate the effect of pre- operative neuromuscular electrical stimulation (NMES) on postoperative quadriceps muscle strength, functional status, and quality of life in patients with fast-track total knee arthroplasty (TKA). This prospective study was carried out at Orthopedics department from September 2017 to October 2018. A total of 40 patients were randomly divided into NMES (n=20) and control group (n=20). Patients in NMES group were asked to use home NMES device daily for 20 minutes, 5 times a day, for 6 weeks before surgery. The control group was placed on the 6-week waiting list for surgery without any preoperative intervention. Standard home exercise program was applied to both groups after discharge. The patients were evaluated baseline, preoperatively (6-weeks after baseline) and at the 4th and 12th weeks after surgery. Knee range of motion, quadriceps muscle strength, patient-reported (WOMAC and KOOS) and performance-based activity limitation (30-second chair-stand test, 40-meter fast-paced walk test, and stair-climb test) were evaluated at each visit. Preoperative NMES resulted in significant improvement in KOOS-function in daily living and WOMAC total score (p≤0.05) but had a non-significant trend toward to improve quadriceps muscle strength, KOOS-pain and -other symptoms, performance- based activity limitation, and quality of life scores (p>0.05). However, there was no significant difference between groups in the postoperative period (p>0.05). NMES has beneficial effects in terms of patient- reported and performance-based physical functions and quality of life in preoperative period ; however, it does not provide any additional benefit for post- operative outcomes in patients with fast-track TKA.Platelet-rich plasma injections have been proposed as an option for Conservative management of knee Osteoarthritis to provide symptomatic relief and also to delay the need for surgical intervention. Although almost all the current literatures provide some evidence on the benefits of this technique compared with Visco- supplementation, no studies have been performed to compare their Clinical outcomes. The purpose is to compare the Clinical outcomes provided by intra- articular injection of either Platelet rich plasma or Hyaluronic acid to treat knee Osteoarthritis. Study Design Randomized Controlled Trial 200 Patients with a history of Symptomatic knee Osteo- arthritis (Kellgren-Lawrence grade 2 or 3) were randomized to undergo 3 blinded intra-articular in- jections of either Platelet rich plasma or Hyaluronic acid. The Interval between successive injections was 2 weeks. Patients were evaluated prospectively before the injection and then at 2, 6, 12, 24, 30 and 36 months. Evaluation was based on International Knee Documentation Committee (IKDC), Visual analog scale, VOMAC Score and the re- injection rate; 189 patients reached the final evaluation. Both platelet rich plasma and Hyaluronic acid were effective in improving knee Symptoms and functional status over time and remained stable over time up to 18 months Post-injection (No re-injection has been performed to any patient incorporated in this study during the first 18 months). The performed re-injections have been significantly lower in the PRP group. Rapamycin Both platelet rich plasma and Hyaluronic acid were effective in improving knee Symptoms and functional status over time and remained stable over time up to 18 months Post-injection. The rate of the required re-injections has been significantly lower in platelet rich plasma group. platelet rich plasma provide longer duration of symptomatic relief, longer duration of functional status improvement and lesser number of needed re-injections than Hyaluronic acid when the patients have been followed through 36 months.Tenosynovial giant cell tumor (TGCT) is defined by the World Health Organization (WHO) as a family of lesions most often arising from the synovium of joints, bursae and tendon sheaths. It is composed of synovial- like mononuclear cells, admixed with multinucleate giant cells, foam cells, siderophages and inflammatory cells (1). It can have various clinical manifestations, and is therefore subdivided in a diffuse and a localized/ nodular subtype. Furthermore, the lesions can have an intra- or extra-articular location. The purpose of this paper is to present the case of a 41-year-old male suffering from multifocal extra- and intra-articular TGCT of the right knee, with involvement of the pes anserinus bursa and an anterior cruciate ligament (ACL) autograft respectively. The ACL reconstruction was performed 11 years prior to the diagnosis of the TGCT, using tendons harvested from the pes anserinus. Our case illustrates the risk of transferring TGCT from an extra- to intra-articular location during ACL reconstruction, when using tendons of a pes anserinus prone to develop this condition. To our knowledge, no similar case was published in the literature so far.To date, the use of biomarkers for assessing individual severity of osteoarthritis (OA) is limited, and the correlation of histological scores with biomarkers for individual animals in the destabilization of the medial meniscus (DMM) model of OA has not been well investigated. Accordingly, this study investigated how well representative biomarkers in the DMM model reflected specific changes in individual animals. Rats were randomly divided into the OA group and the sham group. OA model was established by destabilization of the medial meniscus (DMM). After 2,4,6,8,10 and 12 weeks (n=14, each week), the concentrations of CTXII, COMP, C2C, and OC in serum were measured, and cartilage degeneration, osteophytes, and synovial membrane inflammation, typical of OA, were scored using Osteoarthritis Research Society International (OARSI) scoring system. Additionally, the correlation between each biomarker and the specific changes in osteoarthritis was analyzed for individual animals using the Generalized Estimating Equation (GEE). Statistical analysis showed a low correlation between CTXII and osteophyte score of the medial femur (coefficient = -0.0088, p= 0.0103), COMP and osteophyte score of the medial tibia (coefficient = -0.0911, p= 0.0003), and C2C and synovial membrane inflammation scores of the medial femoral (coefficient = 0.054, p= 0.0131). These results suggest that representative OA bio- markers in individual animals in the DMM model did not reflect histological scores well.Repeated joint bleeding leads to chronic synovitis, cartilage damage and bone alterations which result in haemophilic arthropathy and are associated with pain, functional impairment and poor quality of life. There are evidence that Hyaluronic Acid (HA) and Platelet-rich Plasma (PRP) have different mechanisms of action in the treatment of arthropathy for this reason we decided to use both components. The aim of this study is to compare, the efficacy, safety and duration of a single intra-articular injection of PRP against PRP+HA for pain, bleeding episodes and joint health, in the same patient with bilateral hemophilic knee arthropathy. Twenty-one men patients (42 knee joints) were treated with intra- articular injections of PRP or PRP+HA. All of them were haemophilia type A severe. The mean age was 36.6 years (21-72). All patients were evaluated for Haemophilia Joint Health Score (HJHS), pain (VAS), the number of bleeding episodes (BE) in the last 30 days, before treatment, at three and six months after treatment. Statistically significant improvement were shown for both knee joints at three and six months after treatment for VAS and BE (P less then 0.00001). The HJHS score did not significantly improve for either knee in the 6-month period after injection. A single PRP or PRP+HA injection is safe and effective in treating haemophilic arthropathy of the knee for up to 6 months follow-up, reducing pain, bleeding episodes and delaying total knee arthroplasty.The aim is to study whether a 3 day course of Tranexamic acid (TXA) is more effective in reducing blood loss following a TKR than a 1 day course. 250 patients were prospectively randomised into Group A (n=138; Perioperative and additional oral TXA for two days) and Group B (n=112; only perioperative TXA). Total Blood loss was calculated by the Haemoglobin (Hb) loss method at 4 days and compared in both groups using Mann Whitney test. The mean peri- operative blood loss in group A was 631.69 ± 264.99 ml as compared to 685.55 ± 239.033 ml in group B (p=0.0434). Use of TXA for 3 days following a TKR can be more effective in reducing blood loss.More durable total knee arthroplasties (TKAs) are needed, due to the rising life expectancy, the higher activity levels of patients and the growing concerns about aseptic loosening being caused by metal hypersensitivity. In response, different hypoallergenic metal coatings have been developed for TKAs. However, possible adverse effects of these different metals (cobalt-chromium-molybdenum, zirconium, titanium and tantalum) have been neglected. The aim was to summarize the local and systemic adverse effects (including metal hypersensitivity), survival ratios, patient-reported outcome measures (PROMs) and the plasma metal ion concentrations of the different TKA coatings. A literature search on PubMed and EMBASE was performed. In total, 15 studies were found eligible. Common adverse effects of TKA were infection, loosening, pain, instability and hyper- coagulation disorders. Serious adverse effects related to TKA implants were not reported. The survival ratios and patient-reported outcome measures seem to confirm these good results. In contrast with chromium and cobalt, no significant differences were reported in the nickel, molybdenum and titanium concentrations. No significant differences between the hypoallergenic and standard TKA implants were found in terms of adverse effects, survival ratios and PROMs. A causal relationship between the common adverse effects and the different metals is unlikely. Due to the heterogeneity of the TKA implants used, no firm conclusions could be made. Further research with longer follow-up studies are needed to find possible adverse effects and differences. Thus far, the hypoallergenic implants seem to perform equal to the standard implants.

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