Table 3. Type of Implants in Each Studies.
| Study | Type of implant | Character | Antirotational effect |
|---|---|---|---|
| Watson et al.7) (2016) | CMN | No blade type, 1 cephalomedullary screw | − |
| TasyIkan et al.9) (2015) | PROFIN nails (TST Inc., Istanbul, Turkey) with 2 cephalomedullary screw | No blade type, 2 cephalomedullary screw | + |
| Hu et al.8) (2013) | PFNA (DePuy Synthes, Solothurn, Switzerland) | Blade type | − |
| Massoud3) (2010) | Gamma nail or DHS or cancellous screws | No blade type | −* |
| Su et al.11) (2006) | DHS+antirotational cancellous screw | No blade type | + |
| Chen et al.1) (2008) | DHS±antirotational cancellous screw | No blade type | ± |
| Saarenpää et al.10) (2002) | DHS-antirotational cancellous screw | No blade type | − |
| Kuokkanen13) (1991) | DHS | No blade type | − |
| Davis et al.12) (1990) | DHS or γ-nail | No blade type | − |
| Kweon et al.14) (2017) | Gamma3 CMN (Stryker, Kalamazoo, MI, USA) | No blade type | + |
| Lee et al.15) (2018) | DHS or PFNA (DePuy Synthes) | Blade type in CMN group | ± |
| Guo et al.16) (2019) | PFNA (DePuy Synthes) | Blade type | + |
| Wang et al.17) (2019) | PFNA (DePuy Synthes) | Blade type | + |
| Kim et al.18) (2020) | DHS or CMN (Gamma-3 nail (Stryker, Kiel, Germany), Zimmer natural nail (Zimmer, Warsaw, IN, USA), ITST nail (Zimmer), PFNA (DePuy Synthes), InterTAN nail (Smith-Nephew, Memphis, TN, USA) | Single screw type, blade type and two integrated screw type in CMN group | ± |
| Yoo et al.19) (2019) | ITST nail (Zimmer), PFNA (DePuy Synthes), Gamma 3 CMN (Stryker Trauma GmbH, Schoenkirchen, Germany) | Single screw type, blade type | ± |
CMN: cephallomedullary nail, PFNA: proximal femoral nail-antirotation, DHS: dynamic hip screw, ITST: intertrochanteric/subtrochanteric.
*Cancellous screw was excluded in this review due to high failure rate.