The Surgical Treatment of Pelvic Bone Metastases

Table 3

Scoring system and recommended treatment for pelvic metastasis in patients of classes 2 and 3.

Survival	Site of defect	Size of defect	Response to adjuvant therapy
<1 year = 1	Periacetabular = 1	Small supra-acetabular or medial wall = 2	Yes = 0
1-2 years = 2		Medial and lateral wall = 4	No = 3
>2 years = 3		Protrusio acetabuli = 6
Up to 5 points:	curettage or conventional total hip replacement
5 to 10 points:	complex total hip replacement (reinforcement ring, Harrington procedure)
10 to 13 points:	megaprosthesis, saddle prosthesis, and massive allograft