Improved surgical exposure and early clinical outcomes using a femoral-release-first technique in direct anterior approach during total hip arthroplasty

Table 2 Postoperative functional recovery was measured in patients who underwent FRF or TA DAA for THA^ψ

Outcome	FRF group (N = 44)	TA group (N = 69)	p value
VAS
Preoperative	6.9 ± 0.9	7.0 ± 0.9	0.317
Postoperative
1 month	2.3 ± 0.8	2.8 ± 0.8	0.003^a
2 months	1.4 ± 0.8	1.8 ± 0.8	0.004^a
3 months	0.75 ± 0.69	0.80 ± 0.70	0.726^a
Last follow-up	1.0 ± 0.8	1.0 ± 0.7	0.793
HHS
Preoperative	56.1 ± 2.7	55.8 ± 3.4	0.891
Postoperative
1 month	79.0 ± 4.7	75.0 ± 3.5	0.001^a
2 months	83.5 ± 7.5	78.0 ± 4.5	0.002^a
3 months	89.6 ± 4.9	88.2 ± 4.4	0.100^a
Last follow-up	93.8 ± 2.7	93.1 ± 4.4	0.297
OHS
Preoperative	19.9 ± 2.6	20.7 ± 3.0	0.197
Postoperative
1 month	33.6 ± 2.3	32.8 ± 2.0	0.037^a
2 months	37.4 ± 1.8	36.0 ± 1.5	0.000^a
3 months	42.1 ± 2.0	41.6 ± 2.8	0.199^a
Last follow-up	42.6 + 1.1	42.3 ± 1.4	0.190

^ψ Continuous variables are expressed as the mean and standard deviation. ^a Independent‑sample Mann–Whitney U test. The boldface indicates statistical significance. DAA, direct anterior approach; FRF, femoral-release-first; HHS, Harris Hip Score; OHS, Oxford Hip Score; TA, traditional approach; THA, total hip arthroplasty; VAS, visual analogue scale

ISSN: 1749-799X