Table 1.

Literature review.

Authors	Number of cases (including review)	Numbers chondrosarcoma in THR	Subtype chondrosarcoma	Initial diagnosis	Sex/age of the patient (year old)	Delay in diagnosis
Adelani et al., 2009 [16]	6	1	No information	Nonunion intertrochanter fracture	M/61	0 (intraop. diagnosis)
Dowdy et al., 1998 [17]	6	3	•Grade 2 Chondrosarcoma •Dediff Chondromsaroma •Grade 2 chondrosarcoma	•Enchondroma •Pathologic subtrochanteric fracture •Avascular necrosis	•F/74 •M/60 •F/61	No information
Liska et al., 2015 [15]	1	1	Clear cell chondrosarcoma	Second OA due to hip dysplasia	F/38	7 years
Sampath Kumar et al., 2013 [26]	20	1	No information	OA	No information	No information
Tay et al., 2014 [19]	1	1	Clear cell chondrosarcoma	Aneurysmal bone cyst	F/32	0 (intraop. diagnosis)
Harris et al., 1990 [24]	1	1	Chondrosarcoma associated to Maffucci’s syndroma	OA	F/70	3 years
Visuri et al., 2006 [25]	46	1 (cf Harris 1990)	1 (cf Harris 1990)	1 (cf Harris 1990)	1 (cf Harris 1990)	1 (cf Harris 1990)
Soares do Brito et al., 2020 [27]	1	1	Grade 2 chondrosarcoma	OA	M/60	0 (intraop. diagnosis)