Stay Short or Go Long in Revision Total Hip Arthroplasty With Paprosky Type II Femoral Defects: A Comparative Study With the Use of an Uncemented Distal Fixating Modular Stem and a Primary Monobloc Conical Stem With 5-Year Follow-Up.

Background: In the revisions for Paprosky type II femoral defects, diaphyseal fixating femoral stems are commonly used. To preserve bone stock, the use of a shorter primary conical stem could be an adequate alternative. The objective of this study is to compare the results of a primary conical stem to the more commonly used diaphyseal fixating modular revision stem in revision total hip arthroplasty surgery with Paprosky type II femoral defects.

Ten-year results of a prospective cohort of large-head metal-on-metal total hip arthroplasty : a concise follow-up of a previous report.

Aims: Large-diameter metal-on-metal (MoM) total hip arthroplasty (THA) has demonstrated unexpected high failure rates and pseudotumour formation. The purpose of this prospective cohort study is to report ten-year results in order to establish revision rate, prevalence of pseudotumour formation, and relation with whole blood cobalt levels.

Methods: All patients were recalled according to the guidelines of the Dutch Orthopaedic Association.

Revision of a single type of large metal head metal-on-metal hip prosthesis.

Large-head metal-on-metal (MoM) total hip arthroplasties were introduced because of their purported advantages. Inflammatory pseudotumours occasionally occur after MoM hip arthroplasty and often lead to revision. The purpose of this study was to assess the outcome of revision of large-head MoM total hip arthroplasties after an extensive screening protocol for all MoM articulations with a minimum 2 year follow-up.

[A woman with a swelling in the right groin].

A 59-year-old woman had a swelling in the right groin, 3 years after bilateral metal-on-metal total hip arthroplasty. The diagnosis 'pseudotumour' was confirmed after revision of the arthroplasty.

Congenital convex pes valgus (congenital vertical talus). The condition and its treatment: a review of the literature.

Much discussion exists about the best operative technique to treat congenital convex pes valgus. In this article a table of surgical approaches and an algorithm, based upon literature review, are presented. In our opinion the technique of choice in a child younger than 2 years of age is extensive release with lengthening of tendons and fixation procedures.