In the past 2 decades, sonoelastography has been progressively used as a tool to help evaluate soft-tissue elasticity and add to information obtained with conventional gray-scale and Doppler ultrasonographic techniques. Recently introduced on clinical scanners, shearwave elastography (SWE) is considered to be more objective, quantitative, and reproducible than compression sonoelastography with increasing applications to the musculoskeletal system. SWE uses an acoustic radiation force pulse sequence to generate shear waves, which propagate perpendicular to the ultrasound beam, causing transient displacements. The distribution of shear-wave velocities at each pixel is directly related to the shear modulus, an absolute measure of the tissue's elastic properties. Shear-wave images are automatically coregistered with standard B-mode images to provide quantitative color elastograms with anatomic specificity. Shear waves propagate faster through stiffer contracted tissue, as well as along the long axis of tendon and muscle. SWE has a promising role in determining the severity of disease and treatment followup of various musculoskeletal tissues including tendons, muscles, nerves, and ligaments. This article describes the basic ultrasound physics of SWE and its applications in the evaluation of various traumatic and pathologic conditions of the musculoskeletal system.

There is no consensus on the most effective operation for primary Dupuytren's contracture. This systematic review evaluates the reported rates of recurrence and complications, as well as the strength of evidence, for individual procedures. The PubMed and EMBASE databases were searched for papers in English containing 'Dupuytren' in the citation. The initial search produced 2155 references, of which 69 papers met the study inclusion criteria. There was wide disparity in scoring systems, definition of recurrence and recording of complications. Follow-up ranged from 3 weeks to 13 years, and recurrence from 0 to 71%. There are only three Level I studies comparing surgical techniques for the treatment of primary Dupuytren's contracture, and the evidence does not support one procedure above another, other than to show a particularly high recurrence rate after needle fasciotomy. We propose a minimum data set for future studies.

Data collection and analysis A minimum of two review authors independently reviewed search results to select studies for inclusion by using pre-specified criteria, assessed risk of bias of included studies and extracted data from included studies. We grouped outcomes into the following categories: (1) hand function, (2) other patient-reported outcomes (e.g. satisfaction, pain), (3) early objective outcomes (e.g. correction of angular deformity), (4) late objective outcomes (e.g. recurrence) and (5) adverse effects. Main results We included 14 articles describing 13 studies, comprising 11 single-centre studies and two multi-centre studies. These studies involved 944 hands of 940 participants; of these, 93 participants were reported twice in separate articles describing early and late outcomes of one trial. Three papers reported the outcomes of two trials comparing different procedures. One trial compared needle fasciotomy versus fasciectomy (125 hands, 121 participants), and the other compared interposition firebreak skin grafting versus z-plasty closure of fasciectomy (79 participants). The other 11 studies reported trials of technical refinements of procedures or rehabilitation adjuncts. Of these, three investigated effects of postoperative splinting on surgical outcomes. Ten studies (11 articles) were randomised controlled trials (RCTs) of varying methodological quality; one was a controlled clinical trial. Trial design was unclear in two studies awaiting classification. All trials had high or unclear risk of at least one type of bias. High risks of performance and detection bias were particularly common. We downgraded the quality of evidence (Grades of Recommendation, Assessment, Development and Evaluation-GRADE) of outcomes to low because of concerns about risk of bias and imprecision. Outcomes measured varied between studies. Five articles assessed recurrence; two defined this as reappearance of palpable disease and two as deterioration in angular deformity; one did not explicitly define recurrence. Hand function on the Disabilities of the Arm, Shoulder and Hand (DASH) Scale (scores between 0 and 100, with higher scores indicating greater impairment) was 5 points lower after needle fasciotomy than after fasciectomy at five weeks. Patient satisfaction was better after fasciotomy at six weeks, but the magnitude of effect was not specified. Fasciectomy improved contractures more effectively in severe disease: Mean percentage reduction in total passive extension deficit at six weeks for Tubiana grades I and II was 11% lower after needle fasciotomy than after fasciectomy, whereas for grades III and IV disease, it was 29% and 32% lower. Paraesthesia (defined as subjective tingling sensation without objective evidence of altered sensation) was more common than needle fasciotomy at one week after fasciectomy (228/1000 vs 67/1000), but reporting of complications was variable. By five years, satisfaction (on a scale from 0 to 10, with higher scores showing greater satisfaction) was 2.1/10 points higher in the fasciect...

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Certain hand transplants arguably can be considered the standard of care. Face transplantation requires more time and patient numbers and a clearer definition of inclusion and exclusion criteria before standard of care assessment can be made.

Hand transplantation is moving from acceptance as an ethical surgical experiment to the standard of care.

There is no consensus regarding the optimal mode of managing the acute traumatic subungual haematoma in the hand. In this context the medical literature was searched systematically and the results analysed. The final dataset consisted of four articles. The complication rates of all forms of treatment were low. The outcome in terms of nail cosmesis was generally good, although the method of outcome measurement was variable in nature. There was no difference in cosmetic outcome when comparing nail bed repair with simple decompression. In conclusion the outcome in terms of nail cosmesis does not appear to be affected by the mode of treatment. The acutely painful subungual haematoma should be decompressed, whether this be done by trephining or nail removal. Future research includes the potential for a randomised controlled trial to compare nail bed repair with trephination.

Hypothenar hammer syndrome is a rare but serious cause of digital ischemia and morbidity. Presented here is a case of a manual laborer who had symptoms of digital ischemia after acute hyperextension injury to the ring finger. Magnetic resonance imaging revealed thrombosed ulnar artery aneurysm. Etiology, presentation, and current treatments are reviewed.