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The Journal of Bone & Joint Surgery British Volume
Vol. 80-B, Issue 5 | Pages 777 - 780
1 Sep 1998
Robinson AHN Bird N Screaton N Wraight EP Meggitt BF

We describe a new technique, known as coregistration imaging, which superimposes . 99m. Tc isotope bone scans on to plain radiographs. We used the technique selectively in cases in which the nuclear medicine physician, who reported the isotope scan, had difficulty in localising the anatomical site of the abnormality. In the forefoot, coregistration of isotope scans did not help to localise pathology; the scan alone gave sufficient detail. In 17 patients with pain in the hind- and midfoot, isotope scanning identified eight sites of abnormality in those with normal radiographs. In those with more than one abnormality on plain radiographs the isotope scan eliminated 12 sites of suspicion. Coregistration of the images significantly increased the certainty of localisation of disease (p < 0.001). We recommend the selective use of coregistration scanning as a useful technique for investigating patients with pain in the foot and ankle


The Journal of Bone & Joint Surgery British Volume
Vol. 81-B, Issue 2 | Pages 203 - 206
1 Mar 1999
Davies MS Saxby TS

We carried out 12 arthroscopies of the first metatarsophalangeal (MTP) joint in 11 patients over a five-year period. Their mean age was 30 years (15 to 58) and the mean duration of symptoms before surgery was eight months (1 to 24). Six patients had an injury to the joint; all had swelling and tenderness with a reduced range of movement. In six patients, radiographs revealed no abnormality. Under general anaesthesia with a tourniquet the hallux is suspended by a large Chinese finger trap to distract the joint. Using a 1.9 mm 30° oblique arthroscope the MTP joint is inspected through dorsomedial and dorsolateral portals with a medial portal if necessary. All patients were found to have intra-articular pathology, which was treated using small instruments. The mean follow-up was 19.3 months (6 to 62) and all patients had no or minimal pain, decreased swelling and an increased range of movement of the affected joint