Total hip arthroplasty in patients with vertebral compression fracture is associated with poor clinical outcomes – retrospective analysis on 453 cases

Chen, Chin-Hsi; Okuzu, Yaichiro; Goto, Koji; Kuroda, Yutaka; Kawai, Toshiyuki; Matsuda, Shuichi

doi:10.1186/s40634-023-00618-8

Journal of Experimental Orthopaedics

Table 5 Results of clinical assessments and visual analog scale scores for low back pain

From: Total hip arthroplasty in patients with vertebral compression fracture is associated with poor clinical outcomes – retrospective analysis on 453 cases

	Patients with VCF	Patients without VCF	p-value	Matched patients with VCF	Matched patients without VCF	p-value
Preoperative clinical assessments
HHS	49.2 ± 13.0	54.8 ± 13.9	0.01	49.2 ± 13.5	56.4 ± 13.3	0.01
Pain^a	15.6 ± 7.6	17.2 ± 8.6	0.09	15.8 ± 7.7	18.7 ± 8.0	0.02
Limp^a	5.4 ± 3.1	5.7 ± 2.8	0.63	5.3 ± 3.1	5.4 ± 2.7	0.96
Support^a	6.0 ± 3.3	7.3 ± 3.2	0.01	6.0 ± 3.3	7.2 ± 2.9	0.04
Distance walked^a	5.2 ± 2.5	6.5 ± 2.5	< 0.01	5.2 ± 2.6	6.7 ± 2.5	< 0.01
Stairs^a	1.7 ± 0.6	2.0 ± 0.6	< 0.01	1.7 ± 0.6	2.0 ± 0.4	0.047
Shoes and socks^a	2.0 ± 1.1	2.3 ± 1.0	0.04	2.0 ± 1.1	2.3 ± 1.0	0.25
Sitting^a	5.0 ± 0.3	5.0 ± 0.3	0.90	5.0 ± 0.3	5.0 ± 0.3	1.00
Public transport^a	0.8 ± 0.4	0.9 ± 0.2	< 0.01	0.8 ± 0.4	0.9 ± 0.3	0.14
Deformity^a	3.9 ± 0.6	3.8 ± 0.9	0.31	3.9 ± 0.6	3.9 ± 0.6	1.00
OHS	26.7 ± 11.8	31.3 ± 9.1	< 0.01	26.7 ± 11.3	29.9 ± 10.3	0.15
UCLA activity score^a	3 (2–4)	4 (3–5)	< 0.01	3 (2–4)	3 (3–5)	0.055
VAS for LBP^a	4 (0–7)	2.5 (0–5)	0.03	4 (0–7)	2 (0–4.5)	0.049
Postoperative clinical assessments
HHS^a	89.8 (82.8–96.9)	96.8 (90.7–99.8)	< 0.01	89.8 (81.8–97.0)	94.9 (87.7–99.7)	0.04
Pain^a	42.8 ± 3.0	42.8 ± 3.3	0.95	42.8 ± 3.1	42.9 ± 2.5	0.85
Limp^a	9.2 ± 2.0	10.0 ± 1.9	< 0.01	9.1 ± 2.0	9.7 ± 2.3	0.06
Support^a	7.6 ± 2.9	9.6 ± 2.5	< 0.01	7.6 ± 2.9	9.2 ± 2.6	< 0.01
Distance walked^a	8.4 ± 2.5	9.9 ± 2.0	< 0.01	8.4 ± 2.5	9.5 ± 2.3	0.02
Stairs^a	2.5 ± 0.9	3.0 ± 1.0	< 0.01	2.5 ± 0.9	2.6 ± 1.1	0.38
Shoes and socks^a	3.5 ± 1.0	3.6 ± 0.8	0.31	3.4 ± 1.0	3.6 ± 0.9	0.34
Sitting^a	5.0 ± 0.0	5.0 ± 0.0	1.00	5.0 ± 0.0	5.0 ± 0.0	1.00
Public transport^a	1.0 ± 0.1	1.0 ± 0.1	0.53	1.0 ± 0.1	1.0 ± 0.1	1.00
Deformity^a	4.0 ± 0.0	4.0 ± 0.3	0.61	4.0 ± 0.0	3.9 ± 0.6	0.32
OHS^a	47 (39–48)	47 (45–48)	0.08	47 (39–48)	47 (43–48)	0.52
UCLA activity score^a	4 (3–5)	5 (5–6)	< 0.01	4 (3–5)	5 (4–6)	0.11
VAS for LBP^a	1 (0–5)	0 (0–2)	0.01	1 (0–5)	0 (0–1)	0.02
Changes of clinical assessments
ΔHHS	39.5 ± 11.9	38.8 ± 13.4	0.71	39.4 ± 12.3	35.7 ± 12.6	0.15
ΔOHS	16.5 ± 10.4	14.0 ± 8.8	0.07	16.5 ± 10.3	15.0 ± 9.2	0.46
ΔUCLA activity score	1 (1–2)	1 (0–2)	0.77	1 (0–2)	1 (0–2)	0.78
ΔVAS for LBP	1.6 ± 3.2	1.6 ± 3.0	0.86	1.6 ± 3.2	1.5 ± 3.0	0.90

Data are presented as mean ± standard deviation for normally distributed variables and as median (interquartile range) for non-normally distributed variables
All components of the HHS are shown as mean ± standard deviation, although they are ordinal scales and were analyzed using the Mann–Whitney U test
VCF Vertebral compression fracture, HHS Harris hip score, OHS Oxford hip score, UCLA University of California, Los Angeles, VAS Visual analog scale, LBP Low back pain
^a Mann–Whitney U test was performed

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