Distal femur complex fractures in elderly patients treated with megaprosthesis: Results in a case series of 11 patients

Table 1 Demographics of the study population, n = 11

Demographics of the study population
Sex	10 female; 1 male
Mean age in yr	86 (84-90)
BMI	29.36 (24.3-35.5)
Affected side, n (%)	4 right-sided (36); 7 left-sided (63)
ASA score, n (%)	8 grade II (72); 3 grade III (27)
Etiology, n	2 traffic incidents 9 mechanical falls
Classification, n	4 C1; 3 C2; 4 C3
Type of implant	LPSTMLimb Preservation System De Puy Synthes
Prophylactic banding using a 1.7 mm DePuy Synthes trauma cable, n (%)	7 (63)
Preoperative functionality level	All patients walked without walking aids
Prior implants/osteosynthesis, n (%)	2 ipsilateral THA (18), 1 contralateral TKA (9), 1 ipsilateral intramedullary femoral nail (9)
Osteoporosis/prior osteoarthritis, n (%)	11 (100)
Follow-up in mo	23.2 (11-26)

Data are expressed as average (min-max), unless stated otherwise. BMI: Body mass index; THA: Total hip arthroplasty; TKA: Total knee arthroplasty.

Table 2 List of the comorbidities of the patients included in the study

Comorbidities of the patients
Cancer	0
Diabetes	5 (45%)
Chronic kidney disease	1 (9%)
Steroidal use	0
Rheumatological disease	0
Immunosuppressants	0
Venous insufficiency	1 (9%)
Liver cirrhosis	0
Cardiopathies	4 (36%)
Neurological conditions	1 (9%)

Data are expressed as n (%), unless stated otherwise.

Table 3 Operative data and observed complications, n = 11

Operative data and observed complications
OR time in min	112.9 (96.6-130.7)
Blood loss in mL	280 (200-420)
Blood transfusion, n (%)	1 (9)
1-yr mortality rate (for every cause), n (%)	0 (0)
Length of stay in d	8.3 (6-10)
Postoperative ROM in degrees	96 (80-105) at 3 mo
	102 (90-106) at 2 yr
Functional autonomy at 1 yr (Barthel Index)	77.3 (70-85)
	6 patients using a walker
	1 patients using a wheelchair
	4 patients walking without any walking aid
Early (< 1 mo) post-operative complications, n	0
Late (> 1 mo) post-operative complications, n	4 patients with radiolucent lines < 1 mm
	1 patient with radiolucent lines < 2 mm

Data are expressed as mean (min-max), unless stated otherwise.