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Background: Osteoarthritis is more common in females. It is because osteoarthritis in post-menopausal women is associated with higher body weight, higher subcutaneous fat, calcium deficiency and weaker muscles linked to hormonal changes. The purpose of this study was to evaluate the role of high tibial osteotomy fixed with angle stable plate in treatment of osteoarthritis of knee. Material and Methods: In our study 10 cases were operated by modified coventry technique, 10 cases were operated by open wedge osteotomy with non locking plates and bone graft and 104 cases were operated by medial open wedge osteotomy and iliac graft secured by locking plate. In these cases full weight bearing was allowed at 8 week, 6 week and 3rd post operative day respectively. Radiographical analysis include post operatively change in tibio-femoral angle. Mean follow up of these cases was 2 year. Results: In our study thee knee pain and function score were significantly improved (p value

Aim: To improve the clinical outcomes and to detect the significant predictors of outcome of rotator cuff repair, such as age, sex, side, tear size, fixation methods, smoking, and associated pathology have been investigated in the Indian population. Methods: Forty patients (27 male and 13 female) were included in the study who had complete degenerated rotator cuff tear, managed by arthroscopic single or double row repair technique and follow up till one year at a single institution. Postoperatively, patients were followed up regularly for 4 weeks, and at the final follow-up evaluated using a modified UCLA score. Physical examination and range of motion were analyzed and documented. Results: More than 87.5% of the patients showed good and excellent results. Thirty patients (75%) showed good results, 3 patients (7.5%) showed excellent results. There were no statistically significant relations of outcome with age, sex, side of the tear, size of tear, alcohol or smoking. Patients showed a 65% drop sign negative compared to a 35% drop sign negative cases which are statistically significant. Belly press test was negative in all patients. Mean UCLA score of both favorable and unfavorable results in terms of improvement of post-operative score compared to pre-operative UCLA score was statistically significant. Conclusions: We conclude that the functional outcome was very satisfactory with excellent results. Our study found that post-operative clinical outcomes are not associated with age, sex, side, and size of the tear. Our results depicted that the arthroscopic rotator cuff repair could be the considerable option for repairing rotator cuff repair.

Anterior cruciate ligament injury is one of the most common injuries around knee and poses quiet a lot management controversies. Anterior cruciate ligament has a pivot role in function and stability of the knee joint along with all other ligaments, being a prime stabilizer preventing the anterior translation of tibia over femur. Acute anterior cruciate ligament injury causes recurrent episodes of instability, pain and decreased motion. Anterior cruciate ligament reconstruction allows return to pre injury levels even in athletes, delays development of early osteoarthritis and reestablish the stability of the joint. Graft fixation during ACL reconstruction can be achieved with use of either metal screws or bio absorbable screws. Bio absorbable screws usage provide better visibility in postoperative MRI and also avoid removal at later stage. However there are controversies regarding the ideal graft, ideal fixation device, ideal time and technique of reconstruction. In this study we have compared the metal and bio absorbable screw for fixing the graft and reported the result.

Background: The posteromedial fragment of tibial plateau fracture remains unrecognized for a long time, leading to inadequate fixation with conventional methods and resulting in early varus collapse. So our study is to observe any significant change in functional and radiological outcome in tibial condylar fracture with posteromedial fragment fixed with buttress plates. Materials and methods: We studied 20 patients of tibial plateau fracture with posteromedial fragment fixed with buttress plate at Narayan Medical College and Hospital, Jamuhar, Sasaram, from first march 2017 to 28 February 2018. This study was a prospective observational study. Direct posterior approach in prone were employed in six patients and posteromedial approach in supine employed in 14 patients. Early knee mobilisation started on 1st day weight bearing restricted for 11-13 weeks postoperatively. Minimum 6 months follow up done. Rasmussen clinical and radiological scoring system was used.Results: Age of the patients ranged from 18-70 years with most of patients belong to 31- 50yrs of age group who are more prone for road traffic accidents. The majority of the patients were male (M: F = 3:1). The majority of the fractures were found to be type 4(30%) type5 (30%) and type6 (40%) of Schatzker’s classification. The functional and radiological outcome were comparable and no statistical difference was found with other study (p>0.05).Conclusion: Fixation of posteromedial fragment of tibial plateau fracture with buttress plate provides high union rates, acceptable complications rates as well as satisfactory clinical outcome and radiological outcome.

The aim of this study is to compare and evaluate functional, clinical and radiological outcome achieved by open reduction and internal fixation by Philos plate & percutaneous k-wire fixation of proximal humerus fracture in the elderly patients. In conclusion, locking Compression plate has a distinct advantage in treatment of proximal humeral fractures. This is due to angular stability, compression of fragment particularly in comminuted fractures and in Osteoporotic bones in elderly patients, thus allowing early mobilization. Percutaneous k-wire fixation can be a viable option in elderly patients where several comorbidities. They are particularly useful where we are dealing with patients who have constraint of finances and anesthestic risks of long hours of surgery.

Background: Vertebral fractures are the most common type of osteoporotic fractures. These are developing into a significant health problem worldwide as about 30% of the patients above 50 years suffer from a fracture secondary to osteoporosis. Osteoporotic vertebral fractures may be treated with rest and analgesics. Some fractures may also require surgery. Percutaneous procedure like vertebroplasty and kyphoplasty done under local anaesthesia can reduce the pain and restore height of vertebral body without need for an open surgery. The aim of the study was to assess the clinical and radiological outcomes following unilateral percutaneous vertebroplasty under local anaesthesia. Methods: 21 patients who underwent unilateral vertebroplasty for symptomatic osteoporotic compression fracture between August 2019 and July 2020 were included in the study. Unilateral vertebroplasty using an 11-gauge trocar through transpedicular technique was performed under c-arm guidance. Patient was mobilized as soon as tolerated. Oswestry disability index and visual analogue scale were assessed pre-operatively, in the immediate post-op and at 1-year follow up. Results: There were 15 females and 6 males. The mean age was 70.04±6.07 years. The pre-op ODI score was 76.8±7.6. The pre-op VAS score was 7.66±0.71. The average time period from fracture to vertebroplasty is 4.19±3.19 days. The immediate post-operative VAS score was 5.76±0.8 and the ODI score was 62.85±7.17. The VAS at final follow up was 1.23±1.19. ODI at final follow up was 9.04±3.19. There was a showed a significant improvement when preoperative, immediate post-operative ODI and VAS scores and final follow up (p

International audience; Abstract In recent years, the notion of ‘Quantum Materials’ has emerged as a powerful unifying concept across diverse fields of science and engineering, from condensed-matter and coldatom physics to materials science and quantum computing. Beyond traditional quantum materials such as unconventional superconductors, heavy fermions, and multiferroics, the field has significantly expanded to encompass topological quantum matter, two-dimensional materials and their van der Waals heterostructures, Moiré materials, Floquet time crystals, as well as materials and devices for quantum computation with Majorana fermions. In this Roadmap collection we aim to capture a snapshot of the most recent developments in the field, and to identify outstanding challenges and emerging opportunities. The format of the Roadmap, whereby experts in each discipline share their viewpoint and articulate their vision for quantum materials, reflects the dynamic and multifaceted nature of this research area, and is meant to encourage exchanges and discussions across traditional disciplinary boundaries. It is our hope that this collective vision will contribute to sparking new fascinating questions and activities at the intersection of materials science, condensed matter physics, device engineering, and quantum information, and to shaping a clearer landscape of quantum materials science as a new frontier of interdisciplinary scientific inquiry. We stress that this article is not meant to be a fully comprehensive review but rather an up-to-date snapshot of different areas of research on quantum materials with a minimal number of references focusing on the latest developments.

In this work, we present a systematic study of the plasmon modes in a system of vertically stacked pair of graphene discs. Quasistatic approximation is used to model the eigenmodes of the system. Eigen-response theory is employed to explain the spatial dependence of the coupling between the plasmon modes and a quantum emitter. These results show a good match between the semi-analytical calculation and full-wave simulations. Secondly, we have shown that it is possible to engineer the decay rates of a quantum emitter placed inside and near this cavity, using Fermi level tuning, via gate voltages and variation of emitter location and polarization. We highlighted that by coupling to the bright plasmon mode, the radiative efficiency of the emitter can be enhanced compared to the single graphene disc case, whereas the dark plasmon mode suppresses the radiative efficiency., National Science Foundation (U.S.) (Grant CMMI-1120724), United States. Air Force Office of Scientific Research. Multidisciplinary University Research Initiative (Award FA9550-12-1-0488)