Orthopedic healthcare professionals are enthusiastic about the prospect of the KineSpring System as an option to help close the treatment gap in knee OA. Focusing only on clinical trials with long-term data may be impractical and deprive patients and society of benefits that can be gained while trial data are maturing.
Background Primary anatomic total shoulder arthroplasty can be challenging in patients with complex glenoid wear patterns and bone loss. Severe retroversion (>15°) or significant bone loss may require bone grafting. This review summarizes the rate of revision and long-term outcomes of anatomic total shoulder arthroplasty with bone graft. Methods A systematic search of MEDLINE, Embase, PubMed, and CENTRAL databases was conducted from the date of inception to 23 October 2018. Two reviewers independently screened articles for eligibility and extracted data for analysis. The primary outcome was rate of revision. The secondary outcomes were rate of component loosening, functional outcome, and range of motion. Results Of the 1056 articles identified in the search, 26 underwent full-text screening and 7 articles were included in the analysis. All procedures were one-stage anatomic total shoulder arthroplasties. The rate of revision was 5.4% with component loosening and infection listed as indications over a weighted mean follow-up period of 6.3 years. Complications occurred in 12.6% of patients. Conclusion Glenoid bone grafting in anatomic total shoulder arthroplasty results in comparable revision rates and improvement in pain compared to augmented glenoid components and reverse shoulder arthroplasty. Due to the low quality of evidence, further prospective studies should be conducted. Level of evidence IV
ImportanceInjuries to hyaline cartilage have poor healing potential. Microfracture is often used to treat these lesions; yet, significant variation exists in postoperative rehabilitation protocols.ObjectiveTo systematically examine the evidence on the effects of postoperative weight-bearing status after microfracture surgery. We aimed to ascertain the surgical outcomes and complications associated with patients undergoing microfracture surgery for chondral lesions of the hip, knee or ankle assessing for any difference in outcome between early versus delayed weight-bearing postoperatively.Evidence reviewA literature search was performed through five databases (CINHAL, MEDLINE, EMBASE, PubMed and Web of Science) identifying studies addressing weight-bearing following microfracture surgery published between 1990 and March 2015. 2 reviewers conducted a full-text review of eligible studies and the references of these included studies. Inclusion criteria included studies conducted on human subjects who underwent microfracture with a described postoperative weight-bearing protocol; had outcomes data reported and were published in English. Exclusion criteria included review articles, non-surgical studies, technique papers and non-English language studies. The Grades of Recommendation, Assessment, Development and Evaluation (GRADE) criteria were used to evaluate the quality of the evidence among all included studies and data were abstracted and separated by joint—hip, knee and ankle. Descriptive statistics are presented.FindingsWe identified and included 46 studies (5 hip studies, 22 knee studies and 19 ankle studies) of very low methodological quality. No included hip studies examined early weight-bearing or any functional protocol assessment. With respect to knee microfracture studies, only 20 of a total of 900 patients followed an early weight-bearing protocol. Given the discrepancy between early and delayed weight-bearing sample sizes available, comparative analyses of outcome scores and complications/reoperations were not pursued. With respect to ankle microfracture studies, there were no differences in functional scores and the rate of complications or reoperations between early and delayed weight-bearing groups.Conclusions and relevanceThere is insufficient evidence to draw any meaningful conclusions with respect to differences in functional scores between early versus delayed weight-bearing following microfracture surgery for the treatment of chondral lesions in the hip, knee and ankle.
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