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The clinical and radiographic features of 109 hybrid total hip replacements performed between 1986 and 1992 in 96 consecutive patients were retrospectively reviewed. A cementless Harris-Galante (HGP1) cup and a 32 mm monobloc straight Muller stem were used in all cases. The overall prevalence of distal femoral cortical hypertrophy (DCH) was 43.1%. Male sex, underlying diagnosis of avascular necrosis and Charnley grade A were among the factors that predisposed to the development of DCH. The prevalence of stem radiolucencies was lower in the group of patients who developed DCH compared with those without hypertrophy. The Harris Hip Score ranged between 5 and 54 preoperatively and the average HHS was more than 80 postoperatively. No association was found between DCH and thigh pain.

A 61-year-old man was admitted with a history of right upper quadrant and left iliac fossa pain and raised inflammatory markers. Initial investigations, including contrast-enhanced CT scan of the abdomen and pelvis, were reported as normal. Following readmission 2 months later with thoracolumbar back pain and recurrent fevers, an MRI showed T11/12 discitis and an adjacent mycotic aneurysm of the aorta. CT angiogram confirmed an 8 cm mycotic aneurysm. A second, more distal aneurysm was found located at the left common femoral artery. The aortic aneurysm was treated by antegrade stenting. The left common femoral artery aneurysm was excised. The patient was also treated with antibiotics. He made a good recovery and was well 8 months later apart from mild residual thoracolumbar spinal pain. To date, he has been followed up for 1 year and remains asymptomatic.