Table 1 Demographics

Gender

   Male

71

   Female

30

Age at time of surgery

   Median

64.5 years

   Interquartile range

57.3-72.1 years

Time between diagnosis of RCC and osseous metastasis

   Median

9.7 months

   Interquartile range

1.0-49.0 months

Sites

116

   Spine

29

   Upper extremity

40

   Clavicle/scapula

6

   Humerus

28

   Forearm

5

Lower extremity

47

   Pelvis

15

   Femur

29

   Tibia

3

   Foot

1

Symptoms at time of presentation

   Pain

83%

   Pathologic fracture

36%

   Neurological deficit

11%

   Tumor

20%

Duration of symptoms before presentation

   Median

2.0 months

   Interquartile range

1.0-4.3 months