ORIGINAL ARTICLE

1. Association of vitamin D and knee osteoarthritis in younger individuals
2. Mortality following combined fractures of the hip and proximal humerus
3. Early clinical outcome and learning curve following unilateral primary total knee arthroplasty after introduction of a novel total knee arthroplasty system
4. Highly cross-linked versus conventional polyethylene inserts in total hip arthr oplasty, a five-year Roentgen stereophotogrammetric analysis randomised controlled trial

CASE REPORT

1. Long-term effect of intrathecal baclofen treatment on bone health and body composition after spinal cord injury: A case matched report
2. Conversion to reverse shoulder arthroplasty fifty-one years after shoulder arthrodesis: A case report

LETTER TO THE EDITOR

1. Trochanteric bursitis information on the internet; can we trust the information presented?