The second international consensus conference on the scapula was held in Lexington Kentucky. The purpose of the conference was to update, present and discuss the accumulated knowledge regarding scapular involvement in various shoulder injuries and highlight the clinical implications for the evaluation and treatment of shoulder injuries. The areas covered included the scapula and shoulder injury, the scapula and sports participation, clinical evaluation and interventions and known outcomes. Major conclusions were (1) scapular dyskinesis is present in a high percentage of most shoulder injuries; (2) the exact role of the dyskinesis in creating or exacerbating shoulder dysfunction is not clearly defined; (3) shoulder impingement symptoms are particularly affected by scapular dyskinesis; (4) scapular dyskinesis is most aptly viewed as a potential impairment to shoulder function; (5) treatment strategies for shoulder injury can be more effectively implemented by evaluation of the dyskinesis; (6) a reliable observational clinical evaluation method for dyskinesis is available and (7) rehabilitation programmes to restore scapular position and motion can be effective within a more comprehensive shoulder rehabilitation programme.

https://bjsm.bmj.com/content/bjsports/47/14/877.full.pdf

Clinical implications of scapular dyskinesis in shoulder injury: the 2013 consensus statement from the ‘scapular summit’

https://www.uhasselt.be/Documents/UHasselt/initiatieven/2012/schouderklachten/2-Anat-Pathokinesiol-Pathofysiol/2-A1-Shoulder-Seitz-Mechanism%20of%20rotat%20cuff%20tendinop-intrins-extrins%20(Rev)-Clin%20Biom-2011.pdf

Mechanisms of rotator cuff tendinopathy: Intrinsic, extrinsic, or both?

Introduction
Spinal infection is a rare pathology although a concerning rising incidence has been observed in recent years. This increase might reflect a progressively more susceptible population but also the availability of increased diagnostic accuracy. Yet, even with improved diagnosis tools and procedures, the delay in diagnosis remains an important issue. This review aims to highlight the importance of a methodological attitude towards accurate and prompt diagnosis using an algorithm to aid on spinal infection management.

/pdf/spinal-infection-state-of-the-art-and-management-algorithm-2w28j87g59.pdf

Spinal infection: state of the art and management algorithm.

Cross-use of technology between nuclear medicine and radiology technologists is expanding. The growth of PET/CT and the increasing use of intravenous contrast agents during these procedures bring the nuclear medicine technologist into direct contact with these agents and their associated complications. A basic understanding of the occurrence, risk factors, clinical features, and management of these procedures is of increasing importance to the nuclear medicine technologist. After reading this article, the technologist will be able to list the factors that increase the risk of contrast reactions; understand ways to minimize the occurrence of contrast reactions; and develop a plan to identify, treat, and manage the reactions effectively.

https://tech.snmjournals.org/content/jnmt/36/2/69.full.pdf

Iodinated contrast media and their adverse reactions.

Background: Complex regional pain syndrome type I is treated symptomatically. A protective effect of vitamin C (ascorbic acid) has been reported previously. A dose-response study was designed to evaluate its effect in patients with wrist fractures. Methods: In a double-blind, prospective, multicenter trial, 416 patients with 427 wrist fractures were randomly allocated to treatment with placebo or treatment with 200, 500, or 1500 mg of vitamin C daily for fifty days. The effect of gender, age, fracture type, and cast-related complaints on the occurrence of complex regional pain syndrome was analyzed. Results: Three hundred and seventeen patients with 328 fractures were randomized to receive vitamin C, and ninetynine patients with ninety-nine fractures were randomized to receive a placebo. The prevalence of complex regional pain syndrome was 2.4% (eight of 328) in the vitamin C group and 10.1% (ten of ninety-nine) in the placebo group (p = 0.002); all of the affected patients were elderly women. Analysis of the different doses of vitamin C showed that the prevalence of complex regional pain syndrome was 4.2% (four of ninety-six) in the 200-mg group (relative risk, 0.41; 95% confidence interval, 0.13 to 1.27), 1.8% (two of 114) in the 500-mg group (relative risk, 0.17; 95% confidence interval, 0.04 to 0.77), and 1.7% (two of 118) in the 1500-mg group (relative risk, 0.17; 95% confidence interval, 0.04 to 0.75). Early cast-related complaints predicted the development of complex regional pain syndrome (relative risk, 5.35; 95% confidence interval, 2.13 to 13.42). Conclusions: Vitamin C reduces the prevalence of complex regional pain syndrome after wrist fractures. A daily dose of 500 mg for fifty days is recommended. Level of Evidence: Therapeutic Level I. See Instructions to Authors for a complete description of levels of evidence.

Can vitamin C prevent complex regional pain syndrome in patients with wrist fractures? A randomized, controlled, multicenter dose-response study.

Background: Kyphosis and neurological impairment are the major residual problems of spinal tuberculosis after the microorganism has been eradicated with use of appropriate medications. Spinal instrumentation is needed to support anterior strut grafts in patients who have kyphosis that affects more than two levels. Most surgeons use posterior instrumentation. Anterior instrumentation, despite its advantages, has not been widely accepted, partly because of concerns about introducing foreign material into infected tissue. The purpose of the current study was to address those concerns. Methods: Twenty-two patients who had tuberculosis of the spine with moderate-to-severe localized kyphosis and sixteen patients who had more than two involved levels had stabilization with anterior instrumentation. Antituberculous medication was used postoperatively according to a standardized regimen. The patients were followed to determine if there was any recurrence of the disease and if the correction had been maintained. Results: The twenty-two patients who had involvement of one or two levels had an average correction of the deformity of 64 percent (range, 58 to 90 percent), and the sixteen patients who had more than two levels of involvement had an average correction of 81 percent (range, 75 to 97 percent). The correction was maintained in twenty-one patients, the maximum loss was 3 degrees in sixteen, and one patient died on the second postoperative day. There was no recurrence of the disease. Conclusions: We believe that anterior instrumentation is more effective than posterior instrumentation for reducing the deformity and stabilizing the vertebral column in patients who have kyphosis related to tuberculosis of the spine.

Anterior Instrumentation for the Treatment of Spinal Tuberculosis

The benefits of various minerals and vitamins on fracture healing have been demonstrated in animal models. Vitamin C is an essential substance in fracture healing but has not been studied previously on an experimental basis. Sixteen rats were grouped randomly into control and vitamin C-supplemented groups. The right tibias of all rats were fractured by digital manipulation. One group received single high dose of vitamin C intramuscularly. On the 5th, 10th, 15th, and 20th days, two rats from each group were killed and the tibias examined under light microscopy. It was seen that the vitamin C-supplemented group went through the stages of fracture healing faster compared with the control group.

The contribution of vitamin C to healing of experimental fractures.

In long bones, the most common site for metastases is the proximal femur. For lesions involving this region, osteosynthetic devices frequently fail, and for this reason, endoprosthetic reconstruction may be the optimal choice for treatment. Here, we present a series of 44 patients in whom 45 endoprosthetic reconstructions were performed for metastatic disease. In 28 patients (63.63%), endoprosthetic reconstruction was performed for pathologic fractures, and in 16 patients (36.37%), it was performed for impending fractures indicated by complaints of pain and problems with walking. Full weight bearing was achieved in the early postoperative period in 72.09% of our patients, and sufficient pain control was obtained in all patients. Four patients did not survive past the first 72 hours after surgery, and 11 more patients died within 2 months after surgery. A total of 29 patients (65.9%) survived to the 2-month follow-up visit, and of these, only 12 patients (27.2%) survived past the first postoperative year. We believe that in patients with metastatic disease in the proximal femur, endoprosthetic reconstruction can provide early and stable fixation with pain reduction and good functional results.

Cemented endoprosthetic replacement for metastatic bone disease in the proximal femur.

A total of 16 patients in our clinic (six women, ten men; mean age 54.87 years, range 38–78 years) were diagnosed as having a sacrococcygeal chordoma. Pain was the presenting symptom in all patients. In five patients, the chordoma was inoperable. A total of 11 patients were followed-up for a mean period of 64.8 months (range 7–152 months). Five patients were lost to follow-up (3 in the operable group and two in the inoperable group). The three remaining inoperable patients received radiation therapy. The eight remaining operable patients underwent a total of 12 operations (four anterior and posterior, eight posterior only). Five of these patients received adjuvant radiotherapy and two patients received both radiotherapy and chemotherapy. In follow-up, eight patients had evidence of disease and one patient remained disease-free. Problems encountered during therapy and follow-up included urinary incontinence (72%), rectal incontinence (36%), wound infection (36%), and lower extremity muscle weakness (36%). Two patients died from metastases to the lung. Of the remaining nine patients, eight were ambulatory, with seven needing support to walk. One patient was unable to walk at all due to lower extremity muscle weakness.

Management of sacrococcygeal chordomas

Scapular mobility plays a central role in normal shoulder function, and alterations in scapular mobility have been suggested as a factor in impingement syndrome. We therefore measured the effect of restricted scapular mobility during arm abduction on acromiohumeral and coracohumeral distances. For the control measurements, healthy volunteers (n = 10, all male, age range 25-35 years) underwent multislice computed tomography in a supine position, with the humerus actively maintained in the scapular plane at 45° internal rotation and 60, 90 or 120° abduction. To restrict scapular mobility a custom-made brace was then placed on each volunteer and fastened firmly with bandages, and the measurements were repeated. From the three-dimensional images the acromio humeral and coracohumeral distances were meas ured. With the humerus in 90° abduction, the acromiohumeral distance was significantly reduced (Student’s t test). This result suggests that impinge ment syndrome may have a functional component.

Restricted scapular mobility during arm abduction: implications for impingement syndrome.

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