Novel 3-point positioning technique combined with the TightRope system for treating acute Rockwood type III acromioclavicular joint dislocation

Table 1 Clinical assessment of the patients

Variable	Value
Number of cases	26
Gender, M/F	19/7
Age, years, mean ± SD	41.04 ± 12.93
BMI, kg/m2, mean ± SD	21.97 ± 2.18
Left or right, L/R	6/20
Time from injury to surgery, days, mean ± SD	6.35 ± 2.12
Follow-up time, months, median (IQR)	13.00 (12.00, 13.00)
Injury mechanism
Traffic accident, n (%)	10 (38.46)
Sport injury, n (%)	7 (26.92)
Simple fall, n (%)	3 (11.54)
Work injury, n (%)	6 (23.08)
Operation related indexes
Operative time, min, median (IQR)	29.50 (25.75, 32.50)
Intraoperative bloods, mL, median (IQR)	27.50 (20.00, 30.00)
Fluoroscopy time, seconds, mean ± SD	8.31 ± 1.54

M/F: Male/female; BMI: Body mass index; IQR: Interquartile range.

Table 2 Comparison of functional assessment pre-operation and at the last follow-up

Characteristic	Preoperation	Postoperation	P value
ASES score, mean ± SD	51.96 ± 4.17	94.15 ± 3.03	< 0.001a
DASH score, mean ± SD	83.88 ± 7.73	8.96 ± 2.54	< 0.001a
UCLA score, mean ± SD	9.15 ± 1.76	31.50 ± 1.97	< 0.001a
CMS, mean ± SD	35.19 ± 5.93	94.31 ± 2.56	< 0.001a
VAS score, median (IQR)	5.50 (4.00, 6.00)	1.00 (0, 2.00)	< 0.001b
SPADI score, mean ± SD	64.15 ± 4.91	8.00 ± 4.88	< 0.001a

^aP ≤ 0.05, Student’s t-test.

^bP ≤ 0.05, Mann-Whitney U test.

ASES: American Shoulder and Elbow Surgeons; DASH: Disability of the Arm, Shoulder and Hand; UCLA: University of California, Los Angeles; CMS: Constant-Murley score; VAS: Visual Analog Scale; SPADI: Shoulder Pain and Disability Index; IQR: Interquartile range.