Publications by authors named "John A Oni"

Palmar (volar) plate interposition arthroplasty for osteoarthritis (OA) of the metacarpophalangeal (MCP) joints of the fingers is a well-established technique. Its use has diminished since its initial description and introduction because of poor results in patients with inflammatory arthropathy and a difficult surgical technique. We report the surgical technique and mid-term results of the novel Nottingham interposition arthroplasty for noninflammatory MCP joint OA.

View Article and Find Full Text PDF

The cause and importance of increased density of the proximal pole of the scaphoid seen in radiographs after an acute fracture were investigated. Blood flow to the proximal poles of 32 nonsurgically treated scaphoid fractures were assessed 1 to 2 weeks after injury by measuring their uptake of gadopentetate dimeglumine with dynamic magnetic resonance imaging and calculating its steepest slope and percentage of enhancement values. Initial (week 0) and week 8 scaphoid series radiographs were independently assessed by 2 observers for increased proximal pole density; both agreed that the density had increased during treatment in 9 fractures.

View Article and Find Full Text PDF