Table 4.

Tc-99m-HDP tracer activity within the patella in patients with patellofemoral OA as cause for revision versus others

No.	Initials	1i	1s	2i	2s	Median value	Highest Value medial	Highest value lateral
Patients with patellofemoral OA a s cause of knee pain
1	R.R.	6	8	8	10	8	8	10
2	H.U.	7	9	7	10	8	9	10
3	S.A.	6	4	9	5	5.5	6	9
5	P.M.	10	9	10	9	9.5	10	10
6	L.S.	7	8	8	10	8	8	10
8	M.D.	6	6	7	6	6	6	7
12	R.C.	10	9	10	9	9.5	10	10
15	S.H	10	9	7	7	8	10	7
17	S.H.	7	6	7	10	7	7	10
19	M.D.	6	8	7	6	6.5	8	7
20	F.L.	10	10	10	10	10	10	10
Patient with other causes for knee pain
4	F.L.	4	4	6	6	5	4	6
7	K.G.	6	5	6	6	6	5	6
9	H.R.	5	4	4	3	4	5	4
10	A.C.	7	6	8	8	7.5	6	8
11	S.C.	8	8	6	6	7	8	6
13	W.M.	3	3	3	4	3	4	4
14	K.A.	8	7	8	5	7.5	8	8
16	S.H.	6	4	6	4	5	6	6
18	B.W.	2	2	3	2	2	2	3
21	L.R.	5	3	8	5	5	5	8
22	K.L.	3	4	4	3	3.5	4	4
23	L.J.	4	3	3	3	3	4	3

Spearman`s rho correlation between groups .713 (p = 0.000) .697 (p = 0.000) .743 (p = 0.000)