Limited effects on patient outcomes of conjoint tendon release in anterolateral muscle-sparing total hip arthroplasty

Table 2 JOA and JHEQ scores preoperatively, and at 6 and 12 months postoperatively

	Non Released	Released	p value
Number	37	48
Age	66.2 ± 7.9	67.4 ± 8.7	0.35
BMI	24.5 ± 3.2	24.8 ± 3.5	0.59
Duration of surgery	80.7 ± 16.1	93.0 ± 23.0	0.00*
Amount of blood loss	304.8 ± 150.4	369.8 ± 144.4	0.01*
Osteoarthritis grade
Tonnis grade 1	4	3	0.75
Tonnis grade 2	4	6
Tonnis grade 3	29	39
The number of additional release
the external obturator muscle attachment	0	3
posterior capsule attachment to the posterior	0	5
Stem selection
Taperloc/ Microplasty	36	42
Wagner cone	0	4
CL Spotorno	0	2
C-stem AMT	1	0
Complication
dislocation	0	0
infection	0	0
great trochanter fracture	1	1
subsidence of stem, more than 3mm	2	1

Data represent mean ± standard deviation
*P<0.05
Mann Whitney U test was performed to compare scores between the groups
Fisher’s exact test to compare numbers in OA grade and stem selection between the groups

ISSN: 1749-799X