The objective of this study was to quantify the relative movement between the articular surfaces in the tibiotalar and subtalar joints during normal walking in asymptomatic individuals. 3D movement data of the ankle joint complex were acquired from 18 subjects using a biplanar fluoroscopic system and 3D-to-2D registration of bone models obtained from CT images. Surface relative velocity vectors (SRVVs) of the articular surfaces of the tibiotalar and subtalar joints were calculated. The relative movement of the articulating surfaces was quantified as the mean relative speed (RS) and synchronization index (SIENT) of the SRVVs.Objectives
Methods
The timing of total hip replacement (THR) in
patients with active tuberculosis (TB) of the hip is controversial, because
of the potential risk of reactivation of infection. There is little
information about the outcome of THR in these patients. We conducted
a systematic review of published studies that evaluated the outcome
of THR in patients with active TB of the hip. A review of multiple
databases referenced articles published between 1950 and 2012. A
total of six articles were identified, comprising 65 patients. TB
was confirmed histologically in all patients. The mean follow-up
was 53.2 months (24 to 108). Antituberculosis treatment continued
post-operatively for between six and 15 months, after debridement
and THR. One non-compliant patient had reactivation of infection.
At the final follow-up the mean Harris hip score was 91.7 (56 to
98). We conclude that THR in patients with active TB of the hip
is a safe procedure, providing symptomatic relief and functional
improvement if undertaken in association with extensive debridement
and appropriate antituberculosis treatment. Cite this article:
