Fig. 2.

A schematic of the Endo-Klinik classification for femoral bone loss is represented in this figure. The number below each respective grade represents the number of hips in the study that had bone loss described by the grade shown. (Reproduced and adapted with permission and copyright of the British Editorial Society of Bone and Joint Surgery [Gie GA, Linder L, Ling RS, Simon JP, Slooff TJ, Timperley AJ. Impacted cancellous allografts and cement for revision total hip arthroplasty. J Bone Joint Surg Br. 1993;1:14–21.]).