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. 2011 Dec 8;13(4):221–224. doi: 10.1007/s10195-011-0172-9

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© The Author(s) 2011

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Fig. 4 — Stem subsidence was measured by processing immediate postoperative (a) and 3-month (b) follow-up anteroposterior radiographs via Roman v1.7 software (Roman free to share software version V1.70; Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, UK; http://www.Keele.ac.uk/depts./rjah/), as a change in the vertical distance from the proximal tip of the greater trochanter to the shoulder of the stem. Ectopic bone formation at the lesser trochanter area (white arrowhead) is noted 3 months postoperatively (b)