Table 1.

Clinicopathological data on 100 cases of reconstruction with the newly designed cementless stem

Characteristic	All	Proximal	Distal	Proximal
		femur	femur	tibia
	(N = 100)	(N = 49)	(N = 39)	(N = 12)
Age
median	49.0 yr	56.0 yr	30.0 yr	34.5 yr
≥50 yr	48	32	11	5
<50 yr	52	17	28	7
Gender
male	51	19	25	7
female	49	30	14	5
Diagnosis
primary	64	18	35	11
bone tumor	57	13	33	11
osteosarcoma	35	4	23	8
chondrosarcoma	8	5	3	0
giant cell tumor of bone	8	1	6	1
undifferentiated pleomorphic sarcoma	5	3	0	2
leiomyosarcoma	1	0	1	0
soft tissue tumor	7	5	2	0
undifferentiated pleomorphic sarcoma	2	2
leiomyosarcoma	2	2
synovial sarcoma	2	1	1
liposarcoma	1		1
metastatic bone tumor	36	31	4	1
BMI (body mass index)
median	20.7	20.3	21.3	20.6
≥25	11	5	4	2
<25	89	44	35	10
With chemotherapy	57	26	24	7
Without chemotherapy	43	23	15	5
With radiation	3	2	1	0
Without radiation	97	47	38	12
diaphyseal/stem coefficient
median	2.33	2.37	2.38	1.90
≥2.50	30	17	12	1
<2.50	70	32	27	11