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Rougher stem surface finish may contribute to high levels of osteolysis and stem failure

November 25, 2014

The addition of a rougher surface finish to a modular stem may have contributed to high levels of osteolysis and stem failure, according to study results.

Researchers prospectively followed 105 patients who underwent 112 total hip arthroplasties using a Spectron EF stem (Smith & Nephew) between March 1997 and July 2000. Overall, 19.6% of the original cohort was revised at latest follow-up.

Meeting News Coverage

Eight important items from the NASS Annual Meeting

November 25, 2014
Spine Surgery Today features eight videos and stories to keep your practice up to date from the North American Spine Society Annual Meeting.
In the Journals

Staged allograft reconstruction had favorable results for open knee extensor mechanism injuries

November 25, 2014
Despite high complication rates, patients with open knee extensor mechanism injuries who required staged allograft reconstruction generally had favorable results…

FDA proposes reclassification of rigid pedicle screw systems

November 25, 2014
The U.S. Food and Drug Administration has proposed a reclassification of rigid pedicle screw systems.Currently classified as preamendments class-III devices, the FDA…

Wright subsidiary receives FDA approval letter for bone graft offering

November 25, 2014
Wright Medical Group recently announced its subsidiary, BioMimetic, received an approvable letter in its premarket approval application from the FDA for the…
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Original Research

Tissues at a 3-cm Depth Vigorously Heat Using 3-MHz Ultrasound

Athletic Training and Sports Health Care
Online Advanced Release, November 12, 2014
Therapeutic ultrasound is often used to produce vigorous heating (Δ ⩾4°C) in tissues. Vigorous heating effects of 3-MHz…
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Adjacent Segment Disease

Adjacent Segment Disease
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Meeting News Coverage Video
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Prather speaks on development of registry, her goals for presidency

November 19, 2014
SAN FRANCISCO – Heidi Prather, DO, the incoming president of the North American Spine Society, spoke about the…
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