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In this beautiful atlas, Cor Cremers and Jef Mulder have put together the knowledge and experience gained in four decades of practicing and teaching microsurgical procedures. To be able to teach the basic approaches of modern temporal bone surgery using only one temporal bone represents a masterly performance. Since the number of temporal bones available for dissection is becoming progressively scarce, it is clear that the authors have turned a need into a great virtue. The precise text and the splendid illustrations are also an expression of the authors' special talent in conveying essential
Temporal bone --- Surgery. --- Dissection.
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ABSTRACT Introduction Approximately 20% amongst patients are dissatisfied after total knee arthroplasty (TKA). Bicruciate retaining (BCR) TKA offers superior knee kinematics and proprioception, which may result in improved function, stability and satisfaction. Theoretically, BCR TKA could also improve implant longevity by lessening the stress transmitted through the prosthesis. As a result of complications and technical difficulties, many surgeons abandoned the use of BCR TKA. Recently, two new BCR implant designs were introduced: Vanguard XP (Zimmer Biomet) and Journey XR (Smith&Nephew). Methods We searched Pubmed, Limo, Embase and Cochrane, screened reference lists of eligible studies and included studies that met the inclusion criteria. We included 35 articles reporting on ten different BCR implants, including three articles presenting results of the Vanguard XP prosthesis. Unfortunately, no articles reporting on the results of the Journey XR prosthesis had been published. Results The BCR implants of the early 1970s showed good functional results, but a high rate of complications, mainly loosening and infections. The Townley Anatomic TKA was the first BCR implant with good clinical results, a low incidence of loosening and a high survivorship. One article of the three reporting on the Vanguard XP yielded high patient satisfaction (94%) with two revisions (1.4%). The two other articles reported three revisions (5%) after one year of follow-up and 19 revisions (13.4%) after three years of follow-up. Conclusions Throughout history, the functional results of BCR TKA improved, with lessening of the complications. The short-term results of the Vanguard XP implant showed good functional results, but two out of three articles reported a high rate of loosening. Based on the results reported in this study, the use of BCR TKA is still debatable. Further high-level evidence research is necessary to assess the clinical benefit of BCR TKA.
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