Table 2.

Data Extracted from Included Studies

	Edgerton	Finkelstein	Stahelin	Wang	Backstein	Das
Year of publication	1993	1996	2000	2005	2007	2008
Study design	Case Series	Case Series	Case Series	Case Series	Case Series	Case Series
Number of patients (number of knees)	23(24)	20(21)	19(21)	30(30)	38(40)	12(12)
Gender ratio M:F	5:18	14:6	10:9	2:28	10:28	5:7
Mean age of patients in years (range)	55(37-70)	56(27-77)	57(39-71)	53(31-64)	44.1(20-67)	55(46-71)
Mean follow up (months unless stated)	8.3(5-11)years	133(97-240)	5(2-12) years	99(61-169)	123(39-245)	74(51-89)
Wear in other compartments allowed	yes	yes	no	yes	not stated	Yes
Mean pre-op valgus deformity (degrees)	18(10-27)	not reported	12(10-16)	18.2(12-27)	11.6(4-15)	16(10-21)
Intended correction (tibiofemoral angle)	not stated	0 degrees	1-3 varus	0 degrees	O degrees	3 valgus
Mean post-op angulation (degrees)	1 valgus(18 varus-16 valgus	not> 2 valgus	not reported	1.2 valgus(6 varus-10 valgus)	1.2(0-5) varus	5(1-8) valgus
Type of implant used	staples(20), ex-fix(2), screws(2)	blade plate	semitubular plate	blade plate	blade plate	Puddu non-locking plate
Time to union	not reported	not reported	not reported	4.7(3-9) months	not reported	not reported
Immobilisation	not reported	2 weeks	none	hinged brace	2 weeks	none
Weight bearing	not reported	after 6 weeks	immediate	after 6 weeks	at 6-8 weeks	immediate partial
10 year cumulative survivorship	not reported	64% (48-80)	not reported	87%(69-100)	82%(75-89)	not reported
Converted to TKR or awaiting TKR at latest follow up	3/24	7/21	none	3/30	12/38	2/12
Mean pre-op HSS score	58(27-82)	not recorded	65(56-70)	46(20-63)	not recorded	58
Mean post-op HSS score	78(40-94)	not recorded	84(61-100)	88(65-99)	not recorded	72