Tibial tubercle osteotomy in revision total knee arthroplasty: A systematic review

Table 1 Summary of studies characteristics

Ref.	n	TTOs	Mean age (yr)	Males/ Females	Mean follow-up (mo)	Outcome measures
Barrack et al[17], 1998	15	15	NR	NR	30 (24-48)	ROM, KSS, Subjective satisfaction and function questionnaires
Bruni et al[19], 2013	39	39	72 ± 6	11/28	144 ± 24	ROM, VAS, KSS, Complications
Chalidis et al[2], 2009	74	87	60 (29-89)	35/39	49 (6-108)	ROM, Complications
Choi et al[10], 2012 (1)	36	51	67 (38-87)	20/16	57 (7-126)	ROM, KSS, Complications
Choi et al[11], 2012 (2)	13	26	60 (38-85)	9/4	56 (15-126)	ROM, KSS, Complications
Chun et al[18], 2019	31	31	73.8 ± 7.5	5/26	62.4 (36-210)	ROM, KSS, HSS, Complications
Hocking et al[1], 2007	52	52	NR	NR	NR	ROM, KSS, Complications
Le Moulec et al[12], 2014	63	63	72 ± 11.3	29/36	27.8 ± 10.7	ROM, IKS, Patellar height, Complications
Mendes et al[4], 2004	64	67	65.6 (35-93)	25/39	30 (5-60)	ROM, KSS, Complications
Punwar et al[6], 2016	38	42	66 (33-92)	24/14	6-24	OKS, ROM, Walking status, Complications
Segur et al[13], 2014	26	26	73 (64-88)	12/14	40.8 (28.8- 3.2)	KSS, WOMAC, ROM, Complications
Sun et al[3], 2014	21	21	70.1 ± 7.7	6/15	48.1 ± 17.2	ROM, KSS, HSS, Complications
Van den Broek et al[14], 2006	37	37	54.2 (37-78)	NR	28.4 (12-46)	ROM, KSS, VAS for satisfaction, Complications
Vandeputte et al[16], 2017	13	13	53.6 (34-71)	5/8	24	ROM, KSS, Complications
Zonnenberg et al[15], 2014	23	23	69.6 (43-84)	7/16	16.1 (1-43)	KSS, ROM, SF-36, Complications

TTO: Tibial tubercle osteotomy; NR: Not reported; ROM: Range of motion; KSS: Knee society score; VAS: Visual analogue scale; HSS: Hospital for special surgery score; OKS: Oxford knee score; WOMAC: Western Ontario and McMaster universities osteoarthritis index; IKS: International knee society score; SF-36: 36-item short form health survey.