Approaches to the rationalization of surgical instrument trays: scoping review and research agenda

Table 3 Techniques used in each STR approach and percentage of instrument reduction reported

Approach	Author	Technique	Reduction	Approach	Author	Technique	Reduction
AE	[4]	CL, OBS, STD	48.00%	AE	[53]	CL, OBS	39.50%
AE	[10]	FG, OBS, CA, CT, CP	61.00%	AE	[54]	CL, FG	57.00%
AE	[15]	STD, PC, CL, OBS, FG	NR	AE	[55]	CL	51.92%
AE	[17]	CT	NR	AE	[64]	FG, SM, SIT	33.33%
AE	[18]	CT, PDSA, FG, RCA, KDD	38.60%	AE	[65]	PC, FG, CL	63.74%
AE	[19]	STD	NR	AE	[66]	CL, STD	NR
AE	[21]	CL, FG	19.10%	AE	[67]	STD, PC, OBS	NR
AE	[35]*	ABC, PSI, ITV	66.67%	AE	[68]	STD, PC, FG	NR
AE	[36]	FG, CL	30.00%	AE	[69]	CL, STD	63.27%
AE	[37]	PSI, OBS	50.00%	AE	[70]	CT	NR
AE	[38]	OBS, ITV, CL, CA	13.50%	PL	[6]	FG, CAN, SOP, CL	10.78%
AE	[39]	FG, OBS, PSI	62.11%	PL	[16]	CAN, KAI	11.00%
AE	[40]*	CL, PSI	66.67%	PL	[20]	CL, OBS, STD, KAI	41.45%
AE	[41]*	PSI	62.50%	PL	[22]	FG, CL, SXS	9.86%
AE	[42]*	PSI	54.55%	PL	[26]	STD, PC, CL, OBS, FG	76.87%
AE	[43]	PSI	54.55%	PL	[56]	OSW, SIT, KAI	NR
AE	[44]*	TDI	57.14%	PL	[57]	VSM, L5S, STD, OBS, KAI, FG, CL	70.56%
AE	[45]*	TDI, DT	42.86%	PL	[58]	SXS, FG, VSM, KAI, OSW, CL, STD	53.85%
AE	[46]	OBS, STD, FG, BRT, CL	62.30%	PL	[59]	STD, FG, CL	58.74%
AE	[47]	CT	58.00%	MP	[1]	MILP, HEU, PC	NR
AE	[48]	OBS, CL, CA	46.67%	MP	[12]	PLM, HEU	NR
AE	[49]	CL, STD	89.00%	MP	[34]	CL, HEU, NIP, CP	NR
AE	[51]	PC, CL, FG	NR	MP	[61]	PLM, HEU	61.59%
AE	[52]	NG, PF, RCA, FG, SOP, CL	20.00%	MP	[63]	BRT, OBS, FG, CAN, LP	13.10%

Approaches: AE Expert Analysis, LP Lean Practices, MP Mathematical programming. Techniques: ABC ABC costing, BRT Brainstorming, CA Chrono-analysis, CAN Closest neighbor algorithm, CL Check-list, CP Custom pack, CT Cost tray, DT Decision tree, FG Focus groups, HEU Heuristic, ITV Interview, KAI Kaizen, KDD Key-driver diagram, L5S Lean 5S, LP Linear programming, MILP Mixed integer linear programming, NG Nominal group, NIP Nonlinear integer programming, OBS Observation, OSW Ohno’s seven wastes, PC Preference cards, PDSA Plan, Do, Study, Act, PF Process flowcharts, PLM Modified integer linear programming, PSI Patient-specific instrumentation, RCA Root cause analysis, SIT Shadowed instrument tray, SM Surgical manual, SOP Standard operational procedure, STD Tray standardization, SXS Six sigma, TDI Template-directed instrumentation, VSM Value Stream mapping, NR Not reported; (*) Indicates reduction in the number of STs.

ISSN: 1472-6963