Morphological Study of Cutaneous Ligaments of Phalanges

Sabnis, Anjali

doi:10.4067/s0717-95022013000200041

Cited by 5 publications

(4 citation statements)

References 4 publications

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“…Tendons from a number of muscles integrate into the extensor apparatus, which, in turn, inserts into the phalanges at multiple locations and has numerous other connections with the bones and skin through soft tissue (Landsmeer, 1949b; Milford, 1968; Sabnis, 2013). The presence of the extensor hood, in conjunction with the series of annular and cruciform ligaments that form anatomical pulleys on the palmar surface of the phalanges (Doyle, 1988), allows transmission of force from the muscles, which all reside proximal to the MCP joint, to the segments of the finger.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties vary for different regions of the finger extensor apparatus

Qian

Traylor

Lee

et al. 2014

Journal of Biomechanics

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The extensor apparatus, an aponeurosis that covers the dorsal side of each finger, transmits force from a number of musculotendons to the phalanges. Multiple tendons integrate directly into the structure at different sites and the extensor apparatus attaches to the phalanges at multiple points. Thus, prediction of the force distribution within the extensor apparatus, or hood, and the transmission to the phalanges is challenging, especially as knowledge of the underlying mechanical properties of the tissue is limited. We undertook quantification of some of these properties through material testing of cadaver specimens. We punched samples at specified locations from 19 extensor hood specimens. Material testing was performed to failure for each sample with a custom material testing device. Testing revealed significant differences in ultimate load, ultimate strain, thickness, and tangent modulus along the length of the extensor hood. Specifically, thickness, ultimate load, and ultimate strain were greater in the more proximal sections of the extensor hood, while the tangent modulus was greater in the more distal sections. The variations in mechanical properties within the hood may impact prediction of force transmission and, thus, should be considered when modeling the action of the extensor apparatus. Across the extensor hood, tangent modulus values were substantially smaller than values reported for other soft tissues, such as the Achilles tendon and knee ligaments, while ultimate strains were much greater. Thus, the tissue in the extensor apparatus seems to have greater elasticity, which should be modeled accordingly.

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Section: Introductionmentioning

confidence: 99%

Mechanical properties vary for different regions of the finger extensor apparatus

Qian

Traylor

Lee

et al. 2014

Journal of Biomechanics

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“…It was primarily due to the relatively thicker and more mobile subcutaneous tissue and thinner and shorter Clealand's ligaments of the toe, when compared to the hand fingers. [18] As described by Yii et al [14] and as we experienced, the release of Cleland's ligaments on both sides resulted in facilitating the flap advancement with a decreased tension and retaining the length of the distal phalanx as much as possible. In cases with a long nail bed, which was unable to be covered due to the limited size and insufficient advancement of the flap, the distal phalanx was shortened, and it was not more than 2 mm in any case.…”

Section: Discussionmentioning

confidence: 51%

“…It was primarily due to the relatively thicker and more mobile subcutaneous tissue and thinner and shorter Clealand’s ligaments of the toe, when compared to the hand fingers. [ 18 ]…”

Section: Discussionmentioning

confidence: 99%

The treatment of onychogryphosis of hand nails by total matricectomy and dorsal V-Y advancement flap

Gürbüz

2020

Jt Dis Relat Surg

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Onychogryphosis is a trophic disorder of the nail plate, which occurs most commonly in the toenails and results in a ram's horn-shaped nail deformity. In clinical terms, it is characterized by marked thickening and convexity, increased consistency, and yellow-brownish discoloration of the affected nail plate. [1-4] It may be congenital, idiopathic, or associated with poor self-care due to advancing age, homelessness, and senile dementia, severe single or repeated nail traumas resulting in suppuration or scarring of the nail bed, impaired peripheral circulation, inappropriate surgical interventions due to bacterial infections such as paronychia, and diseases such as psoriasis, ichthyosis, onychomycosis, syphilis, or pemphigus, etc. [2,5-7] Objectives: This study aims to report the outcomes of dorsal V-Y advancement flap technique used for the reconstruction of surgical defects following total matricectomy performed for the onychogryphosis of hand nails. Patients and methods: A total of 18 consecutive patients (10 males, 8 females; mean age 38.4 years; range, 24 to 41 years) with 20 onychogryphotic hand nails who underwent total matricectomy and dorsal V-Y advancement flap technique were analyzed retrospectively between June 2015 and March 2018. The Mann-Whitney U test was used to compare the pre-and postoperative Quick Disability of the Arm, Shoulder, and Hand (Quick DASH) questionnaire scores while postoperative satisfaction rate was also evaluated. Results: The mean follow-up period of the patients was 15.3 months. The etiology was finger trauma in eight and surgical complication of recurrent paronychia drainage in four cases, while the remaining six were idiopathic. The mean time to return to work was 5.2 weeks, and the mean pre-and postoperative Quick DASH scores were 0.97 and 3.45, respectively, with a statistically significant difference. The postoperative satisfaction was rated as excellent in 16, good in one, and moderate in one case. Conclusion: The dorsal V-Y advancement flap technique can be performed reliably due to its good soft tissue coverage, satisfactory cosmetic and functional outcomes, and allowing a short time to return to work.

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“…1940 analysierte Grayson 32 den Halteapparat der Fingerhaut. Er beschrieb Fasern mit einem Durchmesser von etwa 0,8 mm und eine Länge von etwa 2,8–4,0 cm zwischen Ursprung an der Chorda alligans und Ansatz an der Haut 33 . Die Grayson-Ligamente ziehen von der lateralen fibrösen Knochen-Gelenkkante lateral der Ringbandansätze zur gegenüberliegenden Haut des Fingers.…”

Section: Die Anatomie Der Hohlhand – Von Der Haut Bis Zum Knochenunclassified

Pathoanatomie der Dupuytren‘schen Kontraktur

Oeckenpöhler¹,

Langer²

2022

Praxis Handreha

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Das bindegewebige Skelett der Hand ist ein hochkomplexes, mehrschichtiges System, das die gängige Literatur nur unzureichend im Zusammenhang darstellt. Die Kenntnis dieser aufeinander abgestimmten und ineinandergreifenden Systeme ist die Basis zum Verständnis der Entwicklung der Dupuytren’schen Kontraktur. Der Artikel stellt sowohl die gesunde Anatomie als auch deren Veränderungen bei Dupuytren dar und geht auf die Bedeutung der einzelnen Systeme in der Therapie ein.

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Morphological Study of Cutaneous Ligaments of Phalanges

Cited by 5 publications

References 4 publications

Mechanical properties vary for different regions of the finger extensor apparatus

Mechanical properties vary for different regions of the finger extensor apparatus

The treatment of onychogryphosis of hand nails by total matricectomy and dorsal V-Y advancement flap

Pathoanatomie der Dupuytren‘schen Kontraktur

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