Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association
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The purpose of this study was to examine the effectiveness of an arthroscopically placed intra-articular pain catheter for controlling postoperative pain and also review the results following arthroscopic release of refractor adhesive capsulitis. ⋯ Placement of an intra-articular pain catheter for delivery of bupivacaine was highly effective in controlling postoperative pain. In all cases, postoperative pain was essentially eliminated and this substantially assisted with range of motion exercises. Near complete restoration of range of motion without pain was achieved in 95% of the patients.
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To arthroscopically assess the pattern and extent of intra-articular damage associated with ankle fractures. ⋯ Ankle fractures have a high incidence of concomitant intra-articular pathology with syndesmosis disruption portending a particularly high risk of articular surface injury to the talar dome. Arthroscopy is a valuable tool in identifying and treating intra-articular damage that would otherwise remain unrecognized and may provide prognostic information regarding the functional outcome of these injuries.
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Most arthroscopic approaches allow for inspection of the lateral part of the hip joint, but visualization of the medial part is difficult. This article describes the removal of a bullet lodged in the right femoral head of a 33-year-old man. By using an inferomedial arthroscopic approach, we avoided a formal arthrotomy and the disadvantages of other arthroscopic approaches, which include the need for alternate portals, the need for traction, and the risk of both articular cartilage and acetabular labrum damage. The authors believe that this case demonstrates the effective use of the inferomedial arthroscopic approach as an alternative method for removing foreign bodies.
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Comparative Study
Thermometric determination of cartilage matrix temperatures during thermal chondroplasty: comparison of bipolar and monopolar radiofrequency devices.
To compare cartilage matrix temperatures between monopolar radiofrequency energy (mRFE) and bipolar RFE (bRFE) at 3 depths under the articular surface during thermal chondroplasty. We hypothesized that cartilage temperatures would be higher at all cartilage depths for the bRFE device than for the mRFE device. ⋯ In this study, we found significant differences between bRFE and a temperature-controlled mRFE device with regard to depth of thermal heating of cartilage in vitro. Bipolar RFE resulted in matrix temperatures high enough (>70 degrees C) to kill cells as deep as 2,000 microm under the articular surface. Fluid flow during thermal chondroplasty had the effect of significantly increasing cartilage matrix temperatures at 200 and 500 microm with the mRFE device. During thermal chondroplasty, bRFE creates greater matrix temperature elevations at equivalent depths and treatment duration than does mRFE. Excessive temperatures generated deep within the cartilage matrix could cause full-thickness chondrocyte death, in vivo.