Treatment of Bone Losses in Revision Total Hip and Knee Arthroplasty Using Trabecular Metal: Current Literature

Table 1

The Paprosky classification.

Defect type	Superior hip center migration	Ischial osteolysis	Kohler line	Teardrop
I	Minimal	None	Intact	Intact
IIA	Mild	Mild	Intact	Intact
IIB	Moderate	Mild	Intact	Intact
IIC	Mild	Mild	Disrupted	Moderate lysis
IIIA	Severe	Moderate	Intact	Moderate lysis
IIIB	Severe	Severe	Disrupted	Severe lysis