Mid-long-term results of total knee arthroplasty followed by ipsilateral total hip arthroplasty versus total hip arthroplasty subsequent to ipsilateral total knee arthroplasty: a case-control analysis

Table 2 Preoperative and postoperative clinical outcomes

Parameters	THA-TKA group	TKA-THA group	P value
Parameters	n = 28	n = 28	P value
Harris Hip Score
Preoperative	34.0 ± 4.3	34.5 ± 6.0	0.722
Last follow-up	82.2 ± 6.4	83.4 ± 6.9	0.496
Knee Society Score
Preoperative knee score	32.4 ± 6.4	32.4 ± 8.6	0.986
Last follow-up knee score	86.1 ± 6.3	86.4 ± 8.4	0.901
Preoperative function score	38.0 ± 6.0	37.0 ± 6.0	0.506
Last follow-up function score	85.0 ± 4.3	86.1 ± 4.8	0.382
SF-12
Preoperative PCS	10.5 ± 2.4	10.6 ± 2.6	0.831
Last follow-up PCS	20.8 ± 2.2	21.0 ± 2.1	0.804
Preoperative MCS	13.3 ± 2.5	13.5 ± 2.9	0.730
Last follow-up MCS	22.9 ± 1.8	23.1 ± 1.9	0.519
HKA (°)
Preoperative	184.1 ± 5.3	184.1 ± 5.5	0.496
Last follow-up	179.7 ± 3.3	179.6 ± 2.4	0.645
FTA (°)
Preoperative	173.0 ± 5.5	173.2 ± 5.8	0.600
Last follow-up	177.7 ± 3.2	177.6 ± 2.3	0.178
FO
Preoperative	39.0 ± 9.0	39.8 ± 7.9	0.705
Last follow-up	40.5 ± 6.5	40.4 ± 9.5	0.967
LLD
Preoperative	37.8 ± 11.7	41.2 ± 8.1	0.149
Last follow-up	43.0 ± 8.0	46.5 ± 9.1	0.137
Cup inclination (°)	41.9 ± 5.9	40.3 ± 6.2	0.323

The values are present as the mean ± SD
PCS Physical component summary, MCS Mental component summary, HKA Hip knee ankle angle, FTA Femorotibial angle, FO Femoral offset, LLD Limb length discrepancy

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