Short- to mid-term results of ulna head replacement as both a primary and revision implant.

Unlabelled: We present the results of short- to medium-term follow-up of 10 patients following ulna head replacement. The mean age of patients was 63.2 years (range 48-81 years), with the mean duration of follow-up being 48 months (12-88 months).

Rotator cuff repair failure in vivo: a radiostereometric measurement study.

Background: The prevalence of failure among repairs of the rotator cuff is well known, but very few objective data exist regarding either the scale or timing of this complication. The aim of this study was to use a previously validated modified technique of roentgen stereophotogrammetric analysis to monitor the behavior of the rotator cuff after repair to establish at what point failure may occur.

Materials And Methods: A series of 10 patients had metal beads and wire sutures embedded into the humeral greater tuberosity and supraspinatus tendon, respectively, during open cuff repair procedures.