Indication criteria for total hip or knee arthroplasty in osteoarthritis: a state-of-the-science overview

Table 3 Different scenarios in which TKA is deemed appropriate, uncertain or inappropriate according to Escobar et al. [9]

Symptoms	Radiology	Age	Mobility	Localisation	Total knee arthroplasty
Slight or moderate	Ahlbäck I-III				Inappropriate
Slight	Ahlbäck IV-V				Inappropriate
Moderate	Ahlbäck IV-V	<55			Inappropriate
Moderate	Ahlbäck IV-V	≥55		Uni	Inappropriate
Moderate	Ahlbäck IV-V	≥55		Bi-tri	Appropriate
Intense-severe	Ahlbäck I-III	<55		Uni-bi	Inappropriate
Intense-severe	Ahlbäck I-III	<55		Tri	Uncertain
Intense-severe	Ahlbäck I	≥55	Normal		Inappropriate
Intense-severe	Ahlbäck II-III	≥55	Normal		Uncertain
Intense-severe	Ahlbäck I	55-65	Limited		Uncertain
Intense	Ahlbäck I	>65	Limited		Uncertain
Severe	Ahlbäck I	>65	Limited		Appropriate
Intense-severe	Ahlbäck II-III	≥55	Limited		Appropriate
Intense-severe	Ahlbäck IV-V	<55		Uni	Uncertain
Intense-severe	Ahlbäck IV-V	<55		Bi-tri	Appropriate
Intense-severe	Ahlbäck IV-V	≥55			Appropriate

Legend: uni: unicompartmental excluded patello-femoral isolated; bi: unicompartmental plus patello-femoral; tri: tricompartmental

ISSN: 1471-2474