Non-neoplastic indications and outcomes of the proximal and distal femur megaprosthesis: a critical review

Vaishya Raju,Thapa Sunil Singh,Vaish Abhishek 대한슬관절학회 2020 대한슬관절학회지 Vol.32 No.-

Purpose: Megaprosthesis or endoprosthetic replacement of the proximal and distal femur is a well-established modality for treatment of tumors. The indications for megaprosthesis have been expanded to the treatment of some non-neoplastic conditions of the knee and hip, with the severe bone loss associated with failed arthroplasty, communited fractures in the elderly with poor bone quality, and resistant non-union. Th aim of this study is to find out whether megaprosthesis of the knee and hip is successful in the treatment of non-neoplastic condtions. The study comprises a review of the indications, complications, and outcomes of megaprosthesis of the proximal and distal femur in non-neoplastic conditions of the knee and hip joints. Methods: We extensively reviewed the literature on non-neoplastic indications for megaprosthesis of the proximal and distal femur after performing a detailed search of the Pubmed database using the medical subject heading (MeSH) terms ‘proximal femur replacement’ or ‘distal femur replacement’ and ‘hip or knee megaprosthesis.’ The data obtained after the structured search were entered into a Microsoft Excel spreadsheet. The frequency distribution of the demographic data, indications, complications, and outcome was calculated. Result: We included ten studies (seven proximal femur replacement and three distal femur replacement) of 245 proximal femur and 54 distal femur mega prostheses for treatment of non-neoplastic conditions. Bone loss in failed arthroplasty, either due to periprosthetic fracture or deep infection, was the most common indication for megaprosthesis. Dislocation was the most common complication after proximal femur megaprosthesis, and infection was the leading cause of complications after distal femur megaprosthesis. Conclusion: Megaprosthesis for treatment of non-neoplastic conditions around the distal and proximal femur is a viable option for limb salvage, with an acceptable long-term outcome. Although the complications and survival rates of megaprosthesis in non-neoplastic conditions are inferior to a primary arthroplasty of the hip and knee but are comparable or better than the mega prosthetic replacement in the neoplastic conditions. Proximal femoral megaprosthesis has higher dislocation rates and requirement for revision compared to distal femoral megaprosthesis. However, the proximal femoral megaprosthesis has lower rates of infection, periprosthetic fractures, and soft tissue complications, as compared to distal femoral megaprosthetic replacement. Both associated with aseptic loosening but not statistically significant.

Challenges in Total Hip Replacement after McMurray's Osteotomy: A Report of 3 Cases and Review of Literature

Raju Vaishya,Abhishek Vaish,Aabid Husain Ansari 대한정형외과학회 2020 Clinics in Orthopedic Surgery Vol.12 No.4

Background: McMurray’s osteotomy of the hip was a popular surgery practiced for almost 5 decades for the management of the fractured neck of the femur and hip osteoarthritis since its first description in 1936. It is an oblique, medial displacement intertrochanteric osteotomy. In the long term, McMurray's osteotomy patients develop limb length discrepancy and secondary osteoarthritis due to the altered biomechanics of the hip and may require total hip replacement (THR). THR after the previous osteotomy is more challenging than that for unoperated hip joints due to severe distortion of the hip anatomy and soft-tissue contractures. These challenges are related to distorted bony anatomy, soft-tissue contractures, and the choice of implants. Methods: Three patients with previous McMurray's osteotomy of the hip developed secondary osteoarthritis and underwent total hip replacement. We discussed specific challenges encountered during THR and techniques to deal with such problems. Results: All patients had pain-free hip, with minimal residual shortening (average, 1.2 cm) at an average follow-up of 3.67 years (range, 1 to 6 years). The Harris hip score improved significantly postoperatively and no complications were encountered. Conclusions: A detailed and careful preoperative planning, correct execution of surgical techniques, and postoperative rehabilitation are the keys to the successful management of these cases.

Windswept deformities of the knee are challenging to manage

( Suresh Babu ),( Abhishek Vaish ),( Raju Vaishya ) 대한슬관절학회 2020 대한슬관절학회지 Vol.32 No.-

Background: Little has been published about TKA in windswept deformities of the knees where combined varus and valgus deformities present in the same patient. Windswept deformities present with unique problems and must be addressed as two halves of a complex entity. Through this review we aim to understand the interrelation between the deformities, examine outcomes following simultaneous bilateral total knee arthroplasty in windswept deformities, and develop an algorithm for the management of windswept deformities by total knee arthroplasty. Methods: An extensive online literature search for the keywords yielded 31 articles on which we based our review. Articles were analyzed in context to our research questions and are presented in a tabular format for quick reference and a better perspective. Results: The abnormal biomechanics and force moment of the knee cause progressive arthritis of the knee. The valgus deformity usually precedes a varus deformity on the contralateral knee in windswept deformities. Correct restoration of mechanical tibiofemoral angles by individualizing valgus correction angles have better outcomes after TKA. Conclusion: A well-planned and judiciously executed simultaneous bilateral total knee replacement can offer distinct advantages to the patient and surgeon and provides optimum utilization of time and resources in the management of windswept knees.

Trends of arthroscopy publications in PubMed and Scopus

( Srinivas B. S. Kambhampati ),( Abhishek Vaish ),( Raju Vaishya ),( Mohit Kumar Patralekh ) 대한슬관절학회 2021 대한슬관절학회지 Vol.33 No.-

Purpose: Arthroscopy is an established sub-speciality in orthopaedics. With advancing technology, instrumentation and implants, this sub-speciality has seen an explosion of knowledge and techniques since its inception. The indications for arthroscopic management are increasing and, hence, the number of publications on this topic. There has been no study looking into the bibliometrics of all publications within this speciality. The purpose of this study was to look into the trends of published articles on arthroscopy from PubMed and Scopus including studying their citation numbers. Materials and methods: We set out to look into the number of publications from the earliest up to 2019 and their trends and citation numbers in PubMed and Scopus. We also performed a VOS viewer analysis of MeSH terms and titles of publications to look at research trends over time. Results: There were 41,149 articles published on PubMed since 1955 and 50,373 articles on Scopus since 1939. The total number of citations were 912,630 for 38,338 cited articles. With 2864 publications in 2019, there was a more than four-fold increase from the number published in the year 2000. The knee joint was the most frequently published joint with an increasing trend in hip arthroscopy. Cohort studies were the most common with 13,180 articles followed by Reviews with 5746 articles. The top 10 authors, universities and journals were listed along with citation numbers. We analysed the trends of publications for each joint and compared them. Yearly citations have progressively increased to reach a maximum of 45,407 in 2007. Arthroscopy was the most published and cited journal on this topic. The Journal of Bone and Joint Surgery (JBJS) (Am) had the most citations per article. The USA and Hospital for Special Surgery, New York were the most published country and university, respectively. Conclusions: There is a healthy growth of publications on the subject of arthroscopy with a steep increase in the number of publications and citations in recent years. VOS Viewer analysis showed an evolution of research and practice in the field of arthroscopy. Recommendations were made for databases and search engines to improve on the search and analysis of such studies in the future. Level of evidence: 4