Double Endoprosthesis in the Management of Refractory Metastatic Primary Bone Tumors in Children and Young Adults

Table 2

Patient characteristics at the first and second surgery, function, and outcome.

Pt no.	Site of the first surgery	Implant	Surgery-related complications	MSTS score (%)	Function	Site of the second surgery	Implant	Surgery-related complications	MSTS score (%)	Function	Outcome
1	Femur L	Modular	No	77	Ambulatory	Shoulder L	Modular	No	77	Ambulatory	AWD
2	Humerus R	Modular	No	80	Ambulatory	Femur L	Modular	No	77	Ambulatory	AWD
3	Humerus R	Modular	No	74	Ambulatory	Femur R	Modular	No	62	Ambulatory	DOD
4	Femur R	Modular	No	77	Ambulatory	Femur L	Modular	No	65	Ambulatory	AWD
5	Femur L	Modular	Periprosthetic infection	71	Ambulatory	Femur R	Modular	Periprosthetic infection	45	On crutches	DOD
6	Femur L	Expanded	No	71	On crutches	Femur R	Modular	No	42	On crutches	AWD
7	Femur R	Modular	No	77	Ambulatory	Femur L	Modular	No	62	Ambulatory	DOD
8	Femur R	Expanded	No	77	Ambulatory	Pelvic R	Modular	No	45	On crutches	DOD
9	Femur R	Modular	No	71	Ambulatory	Tibia R	Modular	Posttraumatic fracture	60	Ambulatory	AWD
10	Tibia L	Modular	Iatrogenic fracture	77	Ambulatory	Femur R	Modular	Wound necrosis	65	Ambulatory	AWD
11	Femur L	Expanded	Periprosthetic infection	74	Ambulatory	Femur R	Modular	No	63	On crutches	AWD

No: number; M: male; F: female; ES: Ewing sarcoma; OS: osteosarcoma; L: left; R: right; AWD: alive without the disease; DOD: death of disease; MSTS: musculoskeletal tumor society scale.