An eight-point score picked out which young femoral neck fractures went on to osteonecrosis: 4% at the low end, 42% at the high

The edition in brief

Today's orthopaedics edition closes on the FNF-ON8 score (CORR, 22 September), derived retrospectively from 1012 adults aged 18–65 with femoral neck fractures fixed with three cannulated screws at three Chinese centres. Five preoperative features — age 45 or over, displacement, comminution and the position of the subcapital fracture line — gave an eight-point score. Osteonecrosis developed in 4% of patients scoring 0–3 and 42% scoring 6–8, and the score discriminated better than Garden (AUC 0.80 vs 0.70). It is not yet externally validated. The lead is an ACL cohort (AJSM, 7 September) of 581 hamstring reconstructions: each degree of posterior tibial slope raised rerupture odds by 28%, and age did not change that relative effect, but absolute risk with a 15° slope was about 37% at 18 and 4% at 45. A ten-year follow-up of a 50-patient radiostereometric trial (Acta Orthopaedica, 17 September) found no difference in tibial migration or patient-reported outcome between bicruciate- and cruciate-retaining knees, with two revisions in the bicruciate arm. A cohort of 74 fixed proximal humerus fractures (BJJ, 1 September) found patient-rated function consistently below the Constant score, driven by pain rather than motion or strength. On regulation, an FDA recall of an ibuprofen oral suspension in pre-filled syringes (Safecor Health) for cross-contamination is ongoing and not yet classified. The pearl is on asking about pain directly at fracture follow-up.