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Bone & Joint Open
Vol. 1, Issue 4 | Pages 64 - 73
20 Apr 2020
Davaris MT Dowsey MM Bunzli S Choong PF

Aims

Total joint replacement (TJR) is a high-cost, high-volume procedure that impacts patients’ quality of life. Informed decisions are important for patients facing TJR. The quality of information provided by websites regarding TJR is highly variable. We aimed to measure the quality of TJR information online.

Methods

We identified 10,800 websites using 18 TJR-related keywords (conditions and procedures) across the Australian, French, German and Spanish Google search engines. We used the Health on the Net (HON) toolbar to evaluate the first 150 websites downloaded for every keyword in each language. The quality of information on websites was inspected, accounting for differences by language and tertiles. We also undertook an analysis of English websites to explore types of website providers.


Bone & Joint Research
Vol. 6, Issue 8 | Pages 514 - 521
1 Aug 2017
Mannering N Young T Spelman T Choong PF

Objectives

Whilst gait speed is variable between healthy and injured adults, the extent to which speed alone alters the 3D in vivo knee kinematics has not been fully described. The purpose of this prospective study was to understand better the spatiotemporal and 3D knee kinematic changes induced by slow compared with normal self-selected walking speeds within young healthy adults.

Methods

A total of 26 men and 25 women (18 to 35 years old) participated in this study. Participants walked on a treadmill with the KneeKG system at a slow imposed speed (2 km/hr) for three trials, then at a self-selected comfortable walking speed for another three trials. Paired t-tests, Wilcoxon signed-rank tests, Mann-Whitney U tests and Spearman’s rank correlation coefficients were conducted using Stata/IC 14 to compare kinematics of slow versus self-selected walking speed.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXVIII | Pages 142 - 142
1 Sep 2012
Choong PF Bella CD Gaston C Hicks R Slavin J
Full Access

Purpose

Ewings Sarcoma (ES) and Osteosarcoma (OS) behave and respond differently to chemotherapy and any interpretation of diagnostics tests to predict a patients response to treatment must consider this. We reviewed 18F-FDG PET imaging characteristics of consecutive series of ES and OS patients to determine if any differences in PET imaging existed between them.

Method

A retrospective review was performed of 31 patients with ES and OS who received all their treatment by our group and who had pre- and post-chemotherapy 18F-FDG PET scans at the Peter MacCallum Cancer Centre from Jan 1, 1999 to December 1, 2009 (Table 1). Patients who did not have both their pre- and post-chemotherapy PET scans done at Peter MacCallum Cancer Centre were excluded from the study to remove bias from having different PET scanning protocols. Patients received neoadjuvant chemotherapy according to standard protocols, all starting within 2 weeks after the initial pre-chemotherapy PET scans (PET1). The PET scan taken after the last cycle of chemotherapy prior to surgery was considered as the post-chemotherapy scan (PET2). The ratio between pre and post-chemotherapy for each PET parameter was then associated with the histology response for both ES and OS, and positive (PPV) and negative predicting values (NPV) of each parameter were calculated.