Psychological distress of SARS survivors at 1-month recovery is real and significant. Negative appraisals may play a pivotal role in the development of psychological distress for SARS survivors, at least in the short term.

Being infected with Severe Acute Respiratory Syndrome (SARS) can be a traumatic experience. Recent findings indicate that SARS survivors tend to report prominent distress after short-term recovery. This study aimed to examine the roles of appraisal and post-traumatic growth in explaining adjustment outcomes in SARS survivors. Fifty-seven Hong Kong Chinese SARS survivors completed self-administered questionnaires that assessed anxiety and depression symptoms, perceived health, appraisal, and post-traumatic growth. Results of regression analyses showed that factors of appraisal ('perceived impact' and 'coping efficacy') and of post-traumatic growth ('personal growth' and 'relationship growth') respectively accounted for a significant portion of variance in all of the outcome measures, after the effects of demographic and clinical features were controlled. Path analyses revealed that 'perceived impact' and 'coping efficacy' had direct and indirect effects on all outcome variables, whereas 'personal growth' only had a direct effect on depression. Appraisal and post-traumatic growth might be important constructs in accounting for differential outcomes in SARS survivors. Treatment implications and limitations of the study are discussed.

In simulated periacetabular pelvic tumor resections, PSI technique enabled surgeons to reproduce the virtual surgical plan with similar accuracy but with less bone resection time when compared with navigation assistance. Further studies are required to investigate the clinical benefits of PSI technique in pelvic tumor surgery.

The use of computer navigation was first described in the surgical resection of pelvic tumors in 2004. It was developed to improve surgical accuracy with the goal of achieving clear resection margins and better oncologic results. During the past few years, there has been tremendous advancement of computer-assisted tumor surgery (CATS) in the field of orthopedic oncology. Currently, CATS with image fusion offers preoperative three-dimensional surgical planning and allows surgeons to reproduce the intended bone resections in musculoskeletal tumors. The technique is reported to be useful in technically demanding resections, such as in pelvic and sacral tumors; joint-preserving intercalated and multiplanar tumor resection; and complex reconstruction with custom computer-aided design prostheses or allografts. This article provides an up-to-date review of the recent developments and key features in CATS, its current status in clinical practice, and future directions in its development.

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