Medial patellar ligament reconstruction in combination with derotational distal femoral osteotomy for treating recurrent patellar dislocation in the presence of increased femoral anteversion: a systematic review

Table 2 Study characteristics^a

Lead Author	Year	Study Design	LOE	MINORS Score	Patient(knees)No.	Mean Age, y	Male/Female No.	Mean Follow-up, mo
Zhang	2021	Cohort study^b	3	20/24	66(66)	21	59/7	37
Hao	2022	Cohort study^b	3	19/24	31(31)	24	4/27	43
Deng	2021	Case series	4	12/16	13(13)	19	4/9	27
Zhang	2023	Case series^c	4	13/16	92(102)	21	8/94	49
Nelitz	2015	Case series	4	12/16	12(12)	18	0/12	16
Li	2021	Case series	4	12/16	17(17)	18	5/12	18

^aLOE, level of evidence; MINORS, Methodological Index for Nonrandomized Studies;
^bThis study compared the results of patients undergoing derotational femoral osteotomy vs. a nonderotational osteotomy procedure
^cThis study reported clinical results after combined derotational distal femoral osteotomy, which included 102 derotational femoral osteotomies, and an additional tibial tubercle osteotomy was performed in 26 knees. All patients who underwent derotational distal femoral osteotomy were included in the systematic review

ISSN: 1749-799X