Michael K. D. Benson

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The Oxford Knee, a resurfacing prosthesis with a meniscal bearing, can be used for either bicompartmental or unicompartmental arthritis. The first 103 unicompartmental cases are presented at a mean time since operation of 36 months (range 21 to 56 months). In those cases with surviving arthroplasties, pain was relieved in 96%. The full range of(More)
A high incidence of unexpected metal sensitivity was found in patients with metal-to-metal (McKee) hip arthroplasties. Patients with metal-to-plastic (Charnley) prostheses had no greater incidence of metal sensitivity than a control group awaiting operation. If metal sensitivity does occur loosening of the prosthesis may be a complication.
A controlled prospective trial to compare the efficacy of the antibiotics cephaloridine and flucloxacillin in preventing infection after total hip replacement was conducted at three hospitals. The antibiotic regimens began before surgery, cephaloridine being continued for 12 hours and flucloxacillin for 14 days afterwards. Over an 18-month period 297(More)
The outcome of displaced hips treated by Somerville and Scott's method was assessed after more than 25 years. A total of 147 patients (191 displaced hips) was reviewed which represented an overall follow-up of 65.6%. The median age at the index operation was two years. During the first five years, 25 (13%) hips showed signs of avascular change. The late(More)
Diaphragm paralysis has been reported radiologically after cardiac surgery with an incidence ranging from 30% to 75% of patients. We studied 100 consecutive patients undergoing open heart operations, half of whom received ice/slush topical hypothermia (group 1) and half of whom did not (group 2). Chest radiology and diaphragm screening were performed at 1(More)
Acute colonic pseudo-obstruction is a poorly recognised and potentially fatal complication of hip surgery. Between 1991 and 1994 six patients were observed who required laparotomy after failure of medical management. In three the indication was signs of peritonism, while in the other three exploration was required to exclude segmental ischaemia and to(More)
We defined the characteristics of dysplasia and coxa valga in hereditary multiple exostoses (HME) by radiological analysis of 24 hips in 12 patients. The degree and effect of the 'osteochondroma load' around the hip were quantified. We investigated the pathology of the labrum and the incidence of osteoarthritis and of malignant change in these patients.(More)
1 Cardiovascular and airways response to two non-cardioselective beta-adrenoceptor blocking drugs, propranolol and pindolol (with partial agonist activity) and two cardioselective beta-adrenoceptor blocking drugs, acebutolol (with partial agonist activity) and atenolol, were compared in twelve patients with asthma. 2 All four drugs produced a significant(More)
The pathologic anatomy of clubfoot is complex, and the opportunities to examine neonatal specimens are inevitably rare. Three clubfeet were dissected and compared with a normal foot. The shape, orientation, and alignment of the bones were gauged, and tibial torsion was measured. Particular attention was paid to the "medial tie," and its etiologic role was(More)