Extensive Recontouring of the Femoral Head with Osteochondral Allografting: A Case Report with Histological and MicroCT Analysis

Figure 3

(a) Intraoperative photograph at time of total hip replacement showing full integration of the apical 25 mm allograft (white arrow) into the native femoral head. (b) Sectioned femoral head at time of surgery. The apical graft (delineated by “A”) and central lateral graft (delineated by “B”) are included in this section. (c) MicroCT section of femoral head corresponding to (b). The apical graft (delineated by “A”) and central lateral graft (delineated by “B”) are included in this image. (d) Hematoxylin and eosin section of interface showing the native femoral head (large black arrowhead), apical femoral osteochondral allograft (small black arrow), and interface fissuring seen (). (e) Safranin-O section of interface showing the native femoral head (large black arrowhead), apical femoral osteochondral allograft (small black arrow), and interface fissuring seen (). This section demonstrates presence of slightly decreased proteoglycan content in the allograft section.

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