Table 5.

Reported success after repeat injections.

Study	Study Design	Trigger Fingers Analyzed (N)	Definition of Failure	Second Injection Success	Third Injection Success	Duration of Follow-Up¥
Clark et al.4	Retrospective	76	Return of symptoms	33%	50%	44 months
Newport et al.2	Retrospective	356	No improvement in symptoms	23%	5%§	35 months (11–105 months)
Anderson et al.5	Prospective	77	Return of symptoms	59%	----	4.6 years
Benson et al.17	Retrospective	109	Return of symptoms	36%	33%	18 months
Rozental et al.13	Prospective	124	Surgical release	79%	----	12.6 months (12.1–13.2 months)
Dala-Ali et al.9	Retrospective	90	Injection or surgery	44%	6%	1 year minimum
Schubert et al.10	Retrospective	577	Injection or surgery	52%	74%	66.4 months (2–152 months)
Castellanos et al.11	Prospective	71	Return of symptoms	68%		8 years (7–8 years)

^¥Median (range)

^§5% for 3–5 injections