The effects of tibial malrotation on the biomechanics of the tibiotalar joint

Steven J. Svoboda; Kathleen McHale; William R. Klemme; Stephen M. Belkoff; Kathryn S. Cohen

doi:10.1177/107110070202300204

The effects of tibial malrotation on the biomechanics of the tibiotalar joint

Steven J. Svoboda, Kathleen McHale, William R. Klemme, Stephen M. Belkoff, Kathryn S. Cohen

School of Medicine

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

The effects of tibial malrotation on the biomechanics of the tibiotalar joint were studied using a cadaveric model loaded in an Instron 8521 materials testing device and a TEKScan I-Scan thin-film resistive ink pressure measuring system. Testing of 23 legs was performed using rotational conditions of 10 and 20° internal and external rotation as well as neutral rotation. All rotational conditions were found to decrease joint contact area. Peak pressures were significantly greater with 20° internal rotation as well as 20° external rotation. Total load across the joint was significantly lower for both 10 and 20° of external rotation. In conclusion, rotational deformity across the tibiotalar joint results in significant alteration of overall joint biomechanics and should be minimized whenever possible.

Original language	English (US)
Pages (from-to)	102-106
Number of pages	5
Journal	Foot and Ankle International
Volume	23
Issue number	2
DOIs	https://doi.org/10.1177/107110070202300204
State	Published - 2002

ASJC Scopus subject areas

Surgery
Orthopedics and Sports Medicine

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abstract = "The effects of tibial malrotation on the biomechanics of the tibiotalar joint were studied using a cadaveric model loaded in an Instron 8521 materials testing device and a TEKScan I-Scan thin-film resistive ink pressure measuring system. Testing of 23 legs was performed using rotational conditions of 10 and 20° internal and external rotation as well as neutral rotation. All rotational conditions were found to decrease joint contact area. Peak pressures were significantly greater with 20° internal rotation as well as 20° external rotation. Total load across the joint was significantly lower for both 10 and 20° of external rotation. In conclusion, rotational deformity across the tibiotalar joint results in significant alteration of overall joint biomechanics and should be minimized whenever possible.",

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AU - McHale, Kathleen

AU - Klemme, William R.

AU - Belkoff, Stephen M.

AU - Cohen, Kathryn S.

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AB - The effects of tibial malrotation on the biomechanics of the tibiotalar joint were studied using a cadaveric model loaded in an Instron 8521 materials testing device and a TEKScan I-Scan thin-film resistive ink pressure measuring system. Testing of 23 legs was performed using rotational conditions of 10 and 20° internal and external rotation as well as neutral rotation. All rotational conditions were found to decrease joint contact area. Peak pressures were significantly greater with 20° internal rotation as well as 20° external rotation. Total load across the joint was significantly lower for both 10 and 20° of external rotation. In conclusion, rotational deformity across the tibiotalar joint results in significant alteration of overall joint biomechanics and should be minimized whenever possible.

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The effects of tibial malrotation on the biomechanics of the tibiotalar joint

Abstract

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