PMID: 9186228Jun 1, 1997Paper

Anatomic determinants of first metatarsophalangeal flexion moments in hallux valgus

Clinical Orthopaedics and Related Research
C L SaltzmanT D Brown

Abstract

A laboratory cadaver model was used to assess the effects of the major anatomic components of hallux valgus deformity on first metatarsophalangeal flexion moments. The individual components of the flexor hallucis longus' effective tendon moment arm were evaluated as a function of imposed hallux valgus, of hallux pronation, and of combined hallux valgus and pronation. To simulate the effects of distal first metatarsal surgery, the components' changes after metatarsal head lateral translation or supination were assessed. Significant changes in effective tendon moment arm occurred with increases in the hallux valgus angle, with changes in the hallux pronation angle, and with combined increases in the hallux valgus angle and hallux pronation angles. The changes involved primarily were a redirection of the moment vector's projection within the superior and inferior plane or medial and lateral plane, rather than an appreciable alteration of the magnitude of the resultant. By contrast, neither translational nor rotational displacements of the metatarsal head influenced any of the individual components of the effective tendon moment arm.

References

Mar 1, 1990·The Journal of Bone and Joint Surgery. British Volume·J HughesL Klenerman
Feb 1, 1989·Foot & Ankle·A Wanivenhaus, M Pretterklieber
Jan 1, 1985·Journal of Biomechanics·J R TolbertR D Crowninshield
Mar 1, 1996·Foot & Ankle International·C L SaltzmanT D Brown
Apr 1, 1996·Clinical Orthopaedics and Related Research·R L AperT D Brown
Sep 1, 1996·Clinical Biomechanics·S M WalshT D Brown
May 1, 1954·The Journal of Bone and Joint Surgery. British Volume·R W HAINES, A McDOUGALL

❮ Previous
Next ❯

Citations

Mar 7, 2003·The Journal of Orthopaedic and Sports Physical Therapy·Kotaro Tamari, Paul Tinley
Apr 22, 2003·American Journal of Physical Medicine & Rehabilitation·Nurgül Arinci IncelZ R Yorgancioglu
Dec 26, 2015·Foot & Ankle International·Glenn G ShiRichard M Marks
Jul 3, 2009·The Journal of Bone and Joint Surgery. American Volume·Ryuzo OkudaHiroaki Shima
Sep 15, 2011·The Journal of Bone and Joint Surgery. American Volume·A M PereraM M Stephens
Sep 5, 1998·Foot & Ankle International·K D Talbot, C L Saltzman
Jul 14, 2020·Journal of the American Academy of Orthopaedic Surgeons. Global Research & Reviews·Emilio Wagner, Pablo Wagner
Sep 22, 2005·Foot & Ankle International·Eiichi UchiyamaKai-Nan An
Feb 6, 2010·Foot & Ankle International·Karl CansecoGerald F Harris
Mar 26, 2021·Foot & Ankle International·Jesse SteadmanCharles L Saltzman
Sep 1, 1996·Clinical Biomechanics·S M WalshT D Brown
Nov 6, 2001·Foot and Ankle Clinics·V J Sammarco, J Acevedo
Apr 16, 2005·Foot and Ankle Clinics·Anand M Vora, Mark S Myerson

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.