| 1 | Degenerative meniscus: Pathogenesis, diagnosis, and treatment options显示文摘The symptomatic degenerative meniscus continues to be a source of discomfort for a significant number of patients. With vascular penetration of less than onethird of the adult meniscus, healing potential in the setting of chronic degeneration remains low. Continued hoop and shear stresses upon the degenerative meniscus results in gross failure, often in the form of complex tears in the posterior horn and midbody. Patient history and physical examination are critical to determine the true source of pain, particularly with the significant incidence of simultaneous articular pathology. Joint line tenderness, a positive Mc Murray test, and mechanical catching or locking can be highly suggestive of a meniscal source of knee pain and dysfunction. Radiographs and magnetic resonance imaging are frequently utilized to examine for osteoarthritis and to verify the presence of meniscal tears, in addition to ruling out other sources of pain. Non-operative therapy focused on nonsteroidal anti-inflammatory drugs and physical therapy may be able to provide pain relief as well as improve mechanical function of the knee joint. For patients re-fractory to conservative therapy, arthroscopic partial meniscectomy can provide short-term gains regarding pain relief, especially when combined with an effective, regular physiotherapy program. Patients with clear mechanical symptoms and meniscal pathology may benefit from arthroscopic partial meniscectomy, but surgery is not a guaranteed success, especially with concomitant articular pathology. Ultimately, the long-term outcomes of either treatment arm provide similar results for most patients. Further study is needed regarding the short and long-term outcomes regarding conservative and surgical therapy, with a particular focus on the economic impact of treatment as well. | Richard Howell Neil S Kumar Nimit Patel James Tom | 2014 | World Journal of Orthopedics2014，5，5： | 8 |
| 2 | A review of jellyfish aggregations, focusing on India’s coastal waters显示文摘A review of jellyfish aggregations focused on India’s coastal waters was conducted,with the aim to enhance understanding of conducive conditions and subsequent ecological impacts.Jellyfish swarming,as well as their beach strandings,have been reported from many areas of the world—including India’s coastal waters.A variety of natural(winds,tidal fronts,surface currents,water temperature,salinity,turbidity,dissolved oxygen)and anthropogenic(water quality deterioration,overfishing,translocation,habitat modification)factors play pivotal roles in triggering jellyfish aggregations.Jellyfish aggregation events in the forms of their swarming in coastal waters and beach strandings have resulted in ephemeral nuisances such as water quality deterioration,food chain alterations,hindrance in seawater uptake by power plants,clogging of nets during fishing operations,and tourism declines.Several well-known Indian tourist beaches(e.g.,Puri,Chennai,Goa,and Mumbai)have experienced beach strandings.Despite recurrence of such events,jellyfishes are relatively less scientifically investigated and monitored in Indian coastal waters.Therefore,it is important to determine the environmental conditions that trigger jellyfish swarming,in order to develop effective monitoring and prediction strategies.This study additionally proposes a conceptual framework towards development of a jellyfish monitoring system for Indian waters using satellite and model data. | Sanjiba Kumar Baliarsingh Aneesh Anandrao Lotliker Suchismita Srichandan Alakes Samanta Nimit Kumar T.M.Balakrishnan Nair | 2020 | Ecological Processes2020，9，1： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员