Table 3: Profiles of 9 Joints of 9 Patients whose Pain Persisted during Treatment.

Group B	Age (Years)	Gender	Pain at Latest	MRI at Onset	MRI 6M After Onset	KL Grading at Onset	KL Grading 3M After Onset	Radiographic Progression
1	71	F	P2	Local	Local	I	III	Yes
2	76	F	P2	Local	Local	II	II	No
3	68	F	P2	Local	Local	I	I:  More JS narrowing	Yes
4	75	F	P2	Broad	Broad	II	III	Yes
5	76	F	P3	Broad	Local	II	II:  More JS narrowing	Yes
6	59	F	P3	Broad	Broad	I	III	Yes
7	69	F	P3	Broad	Broad	II	III	Yes
8	88	M	P4	Broad	Broad	I	III	Yes
9	76	F	P4	Local	Broad	I	I:  More JS narrowing	Yes
Average	73.1