Naslov
Plantaris tendon is valuable graft for the medial patellofemoral ligament reconstruction: A biomechanical study
(Plantaris tendon is valuable graft for the medial patellofemoral ligament reconstruction: A biomechanical study)

Autori
Vlaić, Josip ; Josipović, Mario ; Bohaček, Ivan ; Pilipović, Ana ; Škavić, Petar ; Schauperl, Zdravko ; Jelić, Mislav

Izvornik
Knee (0968-0160) 38 (2022); 212-219

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Biomechanical properties ; Gracilis tendon ; Medial patellofemoral ligament reconstruction ; Plantaris tendon ; Tendon graft

Sažetak
Background: Medial patellofemoral ligament (MPFL) reconstruction is a standard treatment option for selected patients with patellar instability. Although frequently performed, the optimal graft source for the procedure has not yet been established. This study aimed to determine whether a two-strand plantaris tendon construct possesses the biomechanical properties needed to act as an MPFL reconstruction graft. Methods: Thirty paired plantaris and gracilis tendons were harvested from 15 cadavers, mean age at death of 42.7 years. All specimens were frozen and maintained at -20 °C until biomechanical testing. Prior to mechanical testing, specimens were thawed at room temperature. The two-strand plantaris tendon and two-strand gracilis tendon constructs were created and secured in a uniaxial tensile testing machine in a triangular-shaped mode. Biomechanical properties for tensile testing to failure were determined using validated method. Results obtained were compared with the previously published data on native MPFL biomechanical properties. Results: The mean maximal force was 220.3 ± 108.1 N and 448.1 ± 117 N for the two- strand plantaris tendon construct and two-strand gracilis tendon construct, respectively. Significant differences were observed between all biomechanical properties of two-strand plantaris tendon and two-strand gracilis tendon constructs. The mean maximal force of a two-strand plantaris tendon construct and a two-strand gracilis tendon construct were greater than the mean maximal force of the native MPFL reported in all previous studies. Conclusions: This study suggests that, due to its biomechanical properties, the two- strand plantaris tendon graft is suitable as a graft for MPFL reconstruction.

Izvorni jezik
Engleski

Znanstvena područja
Kliničke medicinske znanosti

POVEZANOST RADA