J 2022

Lapidus arthrodesis in combination with arthrodesis of the first metatarsophalangeal joint-biomechanical cadaver study comparing two methods of fixation

KUNOVSKY, Radek, Ján KOČIŠ, Tomas NAVRAT, Petr VOSYNEK, Tomáš PINK et. al.

Basic information

Original name

Lapidus arthrodesis in combination with arthrodesis of the first metatarsophalangeal joint-biomechanical cadaver study comparing two methods of fixation

Authors

KUNOVSKY, Radek (203 Czech Republic, guarantor), Ján KOČIŠ (703 Slovakia, belonging to the institution), Tomas NAVRAT (203 Czech Republic), Petr VOSYNEK (203 Czech Republic), Tomáš PINK (203 Czech Republic, belonging to the institution), Marek JOUKAL (203 Czech Republic, belonging to the institution) and Igor CIZMAR

Edition

Biomedical Papers, Olomouc: Palacky University, Olomouc, Palacky University, 2022, 1213-8118

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30106 Anatomy and morphology

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 0.900

RIV identification code

RIV/00216224:14110/22:00125391

Organization unit

Faculty of Medicine

UT WoS

000731341700001

Keywords in English

arthrodesis; metatarsophalangeal joint; Lapidus; cadaver; biomechanical study

Tags

International impact, Reviewed
Změněno: 22/2/2023 14:38, Mgr. Tereza Miškechová

Abstract

V originále

Aims. To assess the results of a biomechanical test of cadaveric specimens, comparing 2 methods of fixation of modified Lapidus arthrodesis in combination with arthrodesis of the first metatarsophalangeal joint. Methods. A total of 12 cadaveric specimens were used in the test. Arthrodesis of the first MTP joint was in all patients fixed with a Variable Angle LCP 1st MTP Fusion Plate 2.4/2.7. Two methods of fixation of the Lapidus arthrodesis were compared, i.e. fixation with two screws in the PS (plate-screw) version versus fixation with X-Locking Plate 2.4/2.7 in the PP (plate-plate) version. Measurements were obtained with the use of a testing machine ZWICK Z 020-TND with an optical device Mercury RT for measuring deformities. Each specimen was subjected to 3 loading options, a. displacement 5 mm, the support is placed under the proximal phalanx, b. displacement 5 mm, the support is placed under the first metatarsal head and c. load to failure, the support is placed under the first metatarsal head. Results. In all specimens the PS construct showed a statistically considerably higher stiffness than the PP construct. In all specimens treated with the PP construct the load to failure was lower than in the PS construct. For loading mode a., at a significance level of 0.05 (P<0.05), the P -value was 0.036, for mode b. the P-value was 0.007 and for loading mode c. the P-value was 0.006. In addition, age-related decrease in stiffness of the specimen was proved at a significance level of 5% (P=0.004). Conclusion. In all the three loading modes, the PS (plate-screw) construct showed a statistically higher stiffness than the PP (plate-plate) construct.