No abstract

Overall, the 7-year hip survival rate in hip dysplasia appears inferior compared with that reported in femoroacetabular impingement (78%). Hip arthroscopic surgery is associated with an excellent chance of hip preservation in mild dysplasia (green zone: AI = 0°-15°, LCEA = 15°-25°) and no articular wear. The authors advise that the greatest caution should be used when considering arthroscopic options in cases of severe dysplasia (red zone: AI >20° and/or LCEA <10°).

In his fascinating review of fallstreak holes or 'hole-punch ' clouds, David Pedgley (2008) remarked that there were no measurements into the microphysics and dynamics of holepunch clouds from ground-based remote sensors because the probability of a hole drifting into the instrument sample volume is so small. Here we present some remarkable measurements of exactly that, which we were lucky enough to make at the Chilbolton Observatory in Hampshire.

This prosthesis has a low revision rate with few post-operative complications and good patient-reported outcome in an elderly population.