ALCIFIC TENDONITIS OF THErotator cuff is a well-known source of shoulder pain. 1 Estimates of the overall incidence vary widely, ranging between 2.5% and 20%, 1-3 depending on both clinical criteria and radiographic technique. The disease is usually selflimiting but the natural course is variable. [1][2][3][4][5] For instance, Gärtner 6 reported that calcifications with sharp margins and homogeneous or nonhomogeneous structure disappeared spontaneously in 33% of patients over a period of 3 years, but that 85% of fluffy accumulations did so during the same time period. In 1941, Bosworth 1 reported that 6.4% of calcific lesions showed spontaneous resorption.Clinically, it is important to distinguish calcific tendonitis from a rotator cuff tear as a source of shoulder pain. 7 Several authors have found no correlation between the presence of a tendon tear and calcific tendonitis. 4,[7][8][9][10] The treatment of patients with calcific tendonitis typically is conservative, including use of subacromial cortisone injections, physical therapy, Author Affiliations are listed at the end of this article.

We treated 58 patients with osteoid osteoma by CT-guided radiofrequency ablation (RF). In 16 it followed one or two unsuccessful open procedures. It was performed under general anaesthesia in 48, and spinal anaesthesia in ten. The nidus was first located by thin-cut CT (2 to 3 mm) sections. In hard bony areas a 2 mm coaxial drill system was applied. In softer areas an 11-gauge Jamshidi needle was inserted to allow the passage of a 1 mm RF probe into the centre of the nidus. RF ablation was administered at 90 degrees C for a period of four to five minutes. Three patients had recurrence of pain three, five and seven months after treatment, respectively, and a second percutaneous procedure was successful. Thus, the primary rate of success for all patients was 95% and the secondary rate was 100%. One minor complication was encountered. CT-guided RF ablation is a safe, simple and effective method of treatment for osteoid osteoma.

III.

Our results suggest that the high impact forces in long-distance running are well tolerated and subsequently do not demonstrate changes on MR images.

Introduction In adults with a suspicion of peripheral bone infection, evidence-based guidelines in choosing the most accurate diagnostic strategy are lacking. Aim and methods To provide an evidence-based, multidisciplinary consensus document on the diagnostic management of adult patients with PBIs, we performed a systematic review of relevant infectious, microbiological, orthopedic, radiological, and nuclear medicine literature. Delegates from four European societies (European Bone and Joint Infection Society, European Society of Microbiology and Infectious Diseases, European Society or Radiology, and European Association of Nuclear Medicine) defined clinical questions to be addressed, thoroughly reviewed the literature pertinent to each of the questions, and thereby evaluated the diagnostic accuracy of each diagnostic technique. Inclusion of the papers per statement was based on a PICO (Population/problem – Intervention/indicator – Comparator – Outcome) question following the strategy reported by the Oxford Centre for Evidence-based Medicine. For each statement, the level of evidence was graded according to the 2011 review of the Oxford Centre for Evidence-based Medicine. All approved statements were addressed taking into consideration the available diagnostic procedures, patient acceptance, tolerability, complications, and costs in Europe. Finally, a commonly agreed-upon diagnostic flowchart was developed. Electronic supplementary material The online version of this article (10.1007/s00259-019-4262-x) contains supplementary material, which is available to authorized users.