American Academy of Orthopaedic Surgeons Annual Meeting

The use of cemented polished stems may help preserve the femur in young patients undergoing total hip arthroplasty, according to Australian researchers.

A comparison study of cementless and cemented total knee prostheses revealed no statistical difference in survival curves, infections and other complications, according to a study presented by Venceslav Pisot, MD, at the SICOT XXV Triennial World Congress 2011.

Highly cross-linked polyethylene implants have demonstrated excellent radiographic results, minimal penetration and low linear wear, even against large femoral heads, according to a recent presentation that reviewed four critical polyethylene studies in the tribology literature.

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Although bearing surfaces have evolved leading to highly wear resistant crosslinked polyethylenes, William J. Maloney, MD, noted that these materials have presented some complications leading researchers to continue to work on improving polyethylene options.

KEYSTONE, Colo. – Although a limited sinus tarsi approach for calcaneal fracture fixation showed fewer wound healing problems and postoperative infections than the standard extensile lateral approach, a recently presented study showed that both methods had similar radiographic and clinical outcomes.

Ceramic-on-ceramic bearings have shown excellent long-term outcomes, with no osteolysis or adverse biological effects, according to Laurent Sedel, MD, of Hopital Lariboisiere, University Denis Diderot Paris.

Amid the recent recall of two popular metal-on-metal total hip implants, an investigation of these constructs by the Medicines and Healthcare products Regulatory Agency in the United Kingdom and an FDA order for postmarket surveillance studies on these bearing couples, Adolph V. Lombardi Jr., MD, FACS, cautioned an audience at the SICOT XXV Triennial World Congress 2011 to remember that, “not all metal-on-on metal articulations are created equal.”

PRAGUE — Researchers at London’s Chelsea and Westminster Hospital discovered in their recent analysis of register-based unicompartmental and total knee arthroplasty revision cases that the procedures were more complicated than primary cases due to increases in bone loss and use of constrained prostheses.

PRAGUE — Orthopedists must pay closer attention to partial rotator cuff tears, according to a plenary lecture delivered here.