Dosimetry in Diagnostic Radiology and Computerized Tomography

Operative Technique of Two Parallel Compression Screws and Autologous Bone Graft for Ankle Arthrodesis after Failed Total Ankle Replacement

“…14,22 This might be because the common causes of failure (e.g., infection, presence of large bony defects, and malalignment) act as contraindications for revision arthroplasty. 2 Arthrodesis gives predictable results and reduced reoperation rates in failed TAR compared with revision TAR. 6,13,14,21 The successful fusion rate in these patients has been reported to be 74% to 100%.…”

“…The choice of procedure depends on the cause of failure, condition of adjacent joints and soft tissues, surgeon's experience, and informed discussion with the patient. 2,14 Currently, the most common procedure for managing failed TAR is arthrodesis. 14,22 This might be because the common causes of failure (e.g., infection, presence of large bony defects, and malalignment) act as contraindications for revision arthroplasty.…”

“…6,13,14,21 The successful fusion rate in these patients has been reported to be 74% to 100%. 2,5,6,11,13,14 However, arthrodesis after failed TAR is challenging and has a high rate of complications. 5 To achieve union in ankle arthrodesis after failed TAR, good debridement of bony surfaces and extensive bone grafting are essential.…”

“…12 Carlsson et al reported a failure rate of 21%. 2 With improvement in the design, there has been more interest in TAR, especially in less active and rheumatoid patients. 5,8,10,11,17 However, even with these new designs, failure is not uncommon.…”

Evaluation of scattered radiation in mammography examination with Si detector

“…Solid state thermoluminescent detectors [7], optically stimulated luminescent detectors [8,9], and semiconductor devices [10] can be an alternative to ionization chambers for dose measurements. Measurement of ESD in vivo during mammography examinations when detector is positioned on the skin surface of the patient is complicated.…”