Articular contact at the tibiotalar joint in passive flexion

Corazza, F.; Stagni, Rita; Castelli, Vincenzo Parenti; Leardini, Alberto

doi:10.1016/j.jbiomech.2004.06.019

Cited by 40 publications

(40 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Because climbing apes load their ankles in extreme dorsiflexion and engage in frequent vertical climbing activities (39,41), the ape ankle joint should be adapted for positions of extreme dorsiflexion. Work on human cadavers has demonstrated that the contact area between the tibia and the talus shifts anteriorly during dorsiflexion (42,43), and thus suspecting that the same would be true for the African apes would be reasonable. Therefore, the anterior aspect of the distal tibia in climbing hominoids is predicted to be mediolaterally expanded.…”

Section: Resultsmentioning

confidence: 99%

Functional morphology of the ankle and the likelihood of climbing in early hominins

DeSilva

2009

Proc. Natl. Acad. Sci. U.S.A.

161

241

View full text Add to dashboard Cite

Whether early hominins were adept tree climbers is unclear. Although some researchers have argued that bipedality maladapts the hominin skeleton for climbing, others have argued that early hominin fossils display an amalgamation of features consistent with both locomotor strategies. Although chimpanzees have featured prominently in these arguments, there are no published data on the kinematics of climbing in wild chimpanzees. Without these biomechanical data describing how chimpanzees actually climb trees, identifying correlates of climbing in modern ape skeletons is difficult, thereby limiting accurate interpretations of the hominin fossil record. Here, the first kinematic data on vertical climbing in wild chimpanzees are presented. These data are used to identify skeletal correlates of climbing in the ankle joint of the African apes to more accurately interpret hominin distal tibiae and tali. This study finds that chimpanzees engage in an extraordinary range of foot dorsiflexion and inversion during vertical climbing bouts. Two skeletal correlates of modern ape-like vertical climbing are identified in the ankle joint and related to positions of dorsiflexion and foot inversion. A study of the 14 distal tibiae and 15 tali identified and published as hominins from 4.12 to 1.53 million years ago finds that the ankles of early hominins were poorly adapted for modern ape-like vertical climbing bouts. This study concludes that if hominins included tree climbing as part of their locomotor repertoire, then they were performing this activity in a manner decidedly unlike modern chimpanzees.chimpanzee ͉ tibia ͉ talus

show abstract

Section: Resultsmentioning

confidence: 99%

Functional morphology of the ankle and the likelihood of climbing in early hominins

DeSilva

2009

Proc. Natl. Acad. Sci. U.S.A.

161

241

View full text Add to dashboard Cite

show abstract

“…5) showed that compatibility with the ligaments was achieved by the design and implantation of the novel prosthesis. Bearing movement on the tibia indicates that the rolling element of the natural movement of the talus on the tibia [11,33,34] is reproduced. We found no mention of bearing movement in any of the reports of the current three-component devices with anatomic talar and flat tibial components [3,6,7,25,30,31,[50][51][52][53][54].…”

Section: Discussionmentioning

confidence: 99%

“…The design was based on investigations that included measurements on cadaver specimens in unloaded conditions [11,37,47] and simulations with mathematical models [35,36]. These studies suggested that during passive dorsiflexion/plantar flexion, the shapes of the articular surfaces maintain isometric fibers in the calcaneofibular and tibiocalcaneal (the central superior fibers of the deltoid) ligaments, and these fibers maintain the articular surfaces just in contact.…”

Section: Introductionmentioning

confidence: 99%

Total Ankle Replacement Compatible with Ligament Function Produces Mobility, Good Clinical Scores, and Low Complication Rates: An Early Clinical Assessment

Giannini

Romagnoli

O’Connor

et al. 2010

Clinical Orthopaedics &Amp; Related Research

Self Cite

View full text Add to dashboard Cite

Background A three-part ankle replacement was developed to achieve compatibility with the natural ligaments by allowing fibers on the medial and lateral sides to remain isometric during passive motion. Unlike all current prostheses, the new design uses nonanatomically shaped components on the tibia and talus and a fully conforming interposed meniscal bearing.Questions/purposes Does this new design restore ankle mobility, improve clinical score, and result in low complication and early revision rates? Patients and Methods We reviewed 51 patients in whom 51 prostheses were implanted in a seven-center trial from July 2003 to July 2006. The mean age of the patients at surgery was 61.5 years (range, 35.1-82.5 years). We used the AOFAS score to assess clinical outcome. We used lateral radiographs to assess function. The minimum followup was 24 months (mean, 30 months; range, 24-48 months). Results The mean preoperative AOFAS score of 38.5 increased to 76.9, 79.1, 76.4, and 79.0 at 12, 24, 36, and 48 months, respectively. We observed a correlation between meniscal bearing movement on the tibial component (mean, 3.4 mm; range, 2-12 mm) and range of flexion at the replaced ankle (mean, 27.48; range, 168-538). We revised one arthroplasty in the second postoperative year for lateral impingement, providing a 3-year cumulative survival rate of 97% and performed one other secondary operation for hindfoot pain. Conclusions These data suggest the new prosthesis can provide short-term restoration of ankle mobility, a good clinical score, and low complication and failure rates. Longer followup with larger numbers is required.

show abstract

“…Some humans, including hunter-gatherers, also climb with highly inverted feet and hyperflexed knees ( Figure 1) as the plantar surface of the foot is placed against the tree surface with the hips in hyperabduction (Demps et al 2012), termed the "frog" position (Peters 2001) or chinbodn by the Jahai in Malaysia (Evans 1937). Because ankle dorsiflexion and inversion involve movement at homologous joints (ankle and subtalar) in humans and chimpanzees (Calhoun et al 1994;Corazza et al 2005;DeSilva 2008;Driscoll et al 1994;Kura et al 1998), we hypothesize that climbing and nonclimbing humans will evince anatomical differences in the ankle joint.…”

mentioning

confidence: 99%

Phenotypic Plasticity of Climbing-Related Traits in the Ankle Joint of Great Apes and Rainforest Hunter-Gatherers

et al. 2013

View full text Add to dashboard Cite

Phenotypic Plasticity of Climbing-Related Traits in the Ankle Joint of Great Apes and Rainforest Hunter-Gatherers AbstractThe "negrito" and African "pygmy" phenotypes are predominately exhibited by hunter-gatherers living in rainforest habitats. Foraging within such habitats is associated with a unique set of locomotor behaviors, most notably habitual vertical climbing during the pursuit of honey, fruit, and game. When performed frequently, this behavior is expected to correlate with developmentally plastic skeletal morphologies that respond to mechanical loading. Using six measurements in the distal tibia and talus that discriminate nonhuman primates by vertical climbing frequency, we tested the prediction that intraspecific variation in this behavior is reflected in the morphology of the ankle joint of habitually climbing human populations. First, to explore the plasticity of climbing-linked morphologies, we made comparisons between chimpanzees, gorillas, and orangutans from wild and captive settings. The analysis revealed significant differences in two climbing-linked traits (anterior expansion of the articular surface of the distal tibia and increased degree of talar wedging), indicating that these traits are sensitive to climbing behavior. However, our analyses did not reveal any signatures of climbing behavior in the ankles of habitually climbing hunter-gatherers. These results suggest that the detection of finegrained differences in human locomotor behaviors at the ankle joint, particularly those associated with arboreality, may be obscured by the functional demands of terrestrial bipedalism. Accordingly, it may be difficult to use population-level characteristics of ankle morphology to make inferences about the climbing behavior of hominins in the fossil record, even when facultative arborealism is associated with key fitness benefits. Abstract The "negrito" and African "pygmy" phenotypes are predominately exhibited by hunter-gatherers living in rainforest habitats. Foraging within such habitats is associated with a unique set of locomotor behaviors, most notably habitual vertical climbing during the pursuit of honey, fruit, and game. When performed frequently, this behavior is expected to correlate with developmentally plastic skeletal morphologies that respond to mechanical loading. Using six measurements in the distal tibia and talus that discriminate nonhuman primates by vertical climbing frequency, we tested the prediction that intraspecific variation in this behavior is reflected in the morphology of the ankle joint of habitually climbing human populations. First, to explore the plasticity of climbing-linked morphologies, we made comparisons between chimpanzees, gorillas, and orangutans from wild and captive settings. The analysis revealed significant differences in two climbing-linked traits (anterior expansion of the articular surface of the distal tibia and increased degree of talar wedging), indicating that these traits are sensitive to climbing behavior. However, our analyses did not reveal an...

show abstract

Articular contact at the tibiotalar joint in passive flexion

Cited by 40 publications

References 32 publications

Functional morphology of the ankle and the likelihood of climbing in early hominins

Functional morphology of the ankle and the likelihood of climbing in early hominins

Total Ankle Replacement Compatible with Ligament Function Produces Mobility, Good Clinical Scores, and Low Complication Rates: An Early Clinical Assessment

Phenotypic Plasticity of Climbing-Related Traits in the Ankle Joint of Great Apes and Rainforest Hunter-Gatherers

Contact Info

Product

Resources

About