Table 8.

Radiographic findings in all patients.

Author	Year	Radiographic grading scale	Normal	Minimal narrowing	Moderate narrowing	Severe narrowing
Deehan	2000	IKDC	63 (97%)	2 (3%)	0	0
Drogset	2002	Ahlback	21 (58%)		9 (25%)	6 (17%)
Hart	2005	Ahlback	9 (29%)		13 (42%)	9 (29%)
Hanypsiak	2008	Rosenberg	30 (68%)		14 (32%)
Ibrahim	2005	NR*	71 (84 %)	0	14 (16%)	0
Keays	2007	NR	29 (52%)	20 (36%)	7 (12%)	0
Lebel	2008	IKDC	58 (57%)	25 (25%)	16 (16%)	2 (2%)
Liden	2007	NA#
Matsumoto	2006	IKDC	44 (61%)	22 (30%)	6 (9%	0
O’Neill	2001	IKDC	199 (88%)	21 (9.3%)	4 (1.7%)	1 (0.4%)
Panni	2001	NA
Roe	2005	IKDC	73 (70%)	28 (27%)	3 (3%)	0
Ruiz	2002	IKDC	15 (50%)	12 (40%)	3 (10%)	0
Sajovic	2006	IKDC	41 (76%)	12 (22%)	1 (2%)	0
Shelbourne	2008	IKDC	300 (60%)
Spindler	2005	NA
Wu$	2002	Fairbanks
Zaffagnini	2006	Rosenberg	49 (98%)		1 (2%)

^*NR = Not reported

^#NA = Not applicable–no radiographs were obtained

^$Wu et al. did not report radiographic findings on all patients in their study.

IKDC, International Knee Documentation Committee.