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Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_IV | Pages 144 - 144
1 Mar 2012
Davis N Powell-Smith E Phillips S Hobby J Lowdon I
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Introduction

PIPJ replacement has become increasingly popular however, there is very little clinical data available apart from small studies and those from the originators of the prostheses. We present a review of our initial experience with the Acension(c) Pyro-carbon PIP joint.

Results

Data was collected from 62 joints in 39 patients with one patient lost to follow-up. Mean age was 61.6 years. 29 patients were female and 10 male. Mean follow up was 22.3 months (range 11 to 54). 7 patients or 11% needed further surgery. The majority were for stiffness with 3 operations for dislocation or component malposition. The total complication rate was 32%, again the biggest problem was stiffness. 4 joints have subluxed or dislocated, 2 had superficial infections. There was no statistical difference in the rate of complications compared to the operated finger or the pre-operative diagnosis.

Post-operatively patients had a mean fixed flexion deformity of 19° and flexed to 76° (58° arc). However patients undergoing surgery following trauma do not do as well as the other groups with a decrease in ROM of 33°.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_III | Pages 141 - 141
1 Feb 2012
Reynolds J Murray J Mandalia V Sinha M Clark G Jones A Ridley N Lowdon I Woods D
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Background

In suspected scaphoid fracture the initial scaphoid series plain radiographs are 84-94% sensitive for scaphoid fractures. Patients are immobilised awaiting diagnosis. Unnecessary lengthy immobilisation leads to lost productivity and may leave the wrist stiff. Early accurate diagnosis would improve patient management. Although Magnetic Resonance Imaging (MRI) has come to be regarded as the gold standard in identifying occult scaphoid injury, recent evidence suggests Computer Tomography (CT) to be more accurate in identifying scaphoid cortical fracture. Additionally CT and USS are frequently a more available resource than MRI.

We hypothesised that 16 slice CT is superior to high spatial resolution Ultrasonography (USS) in the diagnosis of radiograph negative suspected cortical scaphoid fracture and that a 5 point clinical examination will help to identify patients most likely to have sustained a fracture within this group.

Methods

100 patients with two negative scaphoid series and at least two out of five established clinical signs of scaphoid injury (anatomical snuffbox tenderness (AST), scaphoid tubercle tenderness (STT), effusion, pain on circumduction and pain on axial loading) were prospectively investigated with CT and USS. MRI was arranged for patient with persistent symptoms but negative CT/USS.