Table 4 Indications, complications, Knee Society Score, and revision and implant survival of distal femur megaprosthesis
Authors | Indications | Complications | Knee Society Score (KSS) | Outcomes | Implant survival |
|---|---|---|---|---|---|
Vaishya R et al.; 2011 [19] | Resistant non-union supracondylar fracture (n = 10) | Wound necrosis (n = 2) Periprosthetic fracture (n = 1) | Not mentioned | Not mentioned | Not mentioned |
Fakler JK et al.; 2013 [27] | Periprosthetic fracture (n = 6) Complex fractures and extensive bone defects (n = 8) | Patellar tendon rupture (n = 1) Early aseptic loosening (n = 1) Periprosthetic frature (n = 4) Infection (n = 2) | KSS improved significantly from 20.0 (IQB 7.5–30.0) points preoperatively to 80.0 (IQB 62.3–89.0) | Not mentioned | Not mentioned |
Vertesich Ket al; 2019 [28] | Substantial bone loss following TKA (n = 30) | Soft-tissue complications (n = 3) Aseptic loosening (n = 4) Periprosthetic fracture (n = 1) Infection (n = 8) | DFR achieved 69.3% of KSS pain score, 23.1% KSS function score and 76.2% of ROM compared to patients with primary TKA | Revision surgery (n = 3) Transfemoral amputation (n = 4) Distal femur reconstruction (n = 1) | Revision-free survival was 74.8% at 1 year, 62.5% at 3 years and 40.9% at 10 years postop |
Total | Substantial bone loss after failed TKA (n = 30) Resistant nonunion supracondylar fracture (n = 10) Traumatic fracture with severe comminution (n = 8) Periprosthetic fracture (n = 6) | Soft tissue complications (n = 6) Aseptic loosening (n = 5) Periprosthetic fracture (n = 6) Periposthetic infection (n = 10) | Revision surgery (n = 3, 5.5%) Transfemoral amputation (n = 4) Distal femur reconstruction (n = 1) |