Metabolic development of necrotic bone in the femoral head following resurfacing arthroplasty

Figures & data

Area of low uptake (< 0.65 SUV), given in cm2, in 11 hip joints containing prosthetic components, cement, and bone without tracer uptake. Values in parenthesis denote time (in months) after surgery

Case	Age at surgery	PET 1	PET 2	PET 3
1	35	8.9 (14)	11.3 (29)	13.9 (54)
2	39	9.7 (12)	12.4 (22)	25.9 (38)
3	58	17.6 (12)	10.3 (24)	13.1 (36)
4	67	9.3 (12)	14.0 (24)	12.7 (36)
5	43		9.5 (34)	9.6 (52)
6	47	10.2 (34)	10.2 (57)	17.2 (79)
7	56		14.8 (27)	14.5 (42)
8	40		8.8 (27)	8.7 (41)
9	51		14.3 (30)	10.2 (45)
10	32		8.6 (63)	8.5 (77)
11	32		7.1 (55)	7.2 (69)

Figure 1. F-PET scan of a resurfaced hip. Low tracer uptake by prosthetic components, cement, and bone. The dotted red line indicates area of low uptake (< 0.65 SUV), which appears black.

Figure 2. Time scale of development of areas of low tracer uptake in the femoral heads for the 11 cases.