Correction to: Shoulder Arthroplasty for Humeral Head Avascular Necrosis Is Associated with Increased Postoperative Complications.

[This corrects the article DOI: 10.1007/s11420-017-9562-8.].

Shoulder Arthroplasty for Humeral Head Avascular Necrosis Is Associated With Increased Postoperative Complications.

Background: Humeral head avascular necrosis (AVN) of differing etiologies may lead to shoulder arthroplasty due to subchondral bone collapse and deformity of the articular surface. There have been no large studies evaluating the complications for these patients after they undergo total shoulder arthroplasty (TSA).

Questions/purposes: The first objective of this study is to evaluate the complication rate after TSA in patients with humeral head AVN.

MRI and Arthroscopic Correlation of the Wrist.

Since its introduction in 1979, the practice of and indications for wrist arthroscopy in the diagnosis and treatment of pathologic conditions in the wrist continues to grow. Magnetic resonance imaging (MRI) is another commonly used tool to noninvasively examine the anatomy and pathology of the wrist joint. Here, we review the normal wrist anatomy as seen arthroscopically and through MRI.