Biomechanics of procedures used in adult flatfoot deformity

McCormack, Anne P.; Ching, Randal P.; Sangeorzan, Bruce J.

doi:10.1016/s1083-7515(03)00072-x

Cited by 53 publications

(36 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Because the subtalar joint affects more than one plane the resultant angle that is measured may not be comparable from patient to patient. (McCormack, Ching, & Sangeorzan, 2001) (Greisberg, Assal, Hansen, & Sangeorzan, 2005). Some of these procedures have been used alone but the most effective surgeries to correct flatfoot are a combination of the techniques that are tailored to the specific symptoms of the patient (McCormack, Ching, & Sangeorzan, 2001).…”

Section: Diagnosis Of Flatfootmentioning

confidence: 99%

Plantar Measurements to Determine Success of Surgical Correction of Stage IIb Adult Acquired Flatfoot Deformity

Matheis

Spratley

Hayes

et al. 2014

The Journal of Foot and Ankle Surgery

View full text Add to dashboard Cite

Adult acquired flatfoot deformity is a degenerative disease causing medial arch dysfunction. Surgical correction has typically involved tendon reconstruction with calcaneal osteotomy; however, the postoperative changes have not been fully characterized. The present study assessed the success of surgical correction of Stage IIb adult acquired flatfoot deformity through changes in plantar pressures and patient-generated outcome scores. With Institutional Review Board approval, 6 participants were evaluated before and after surgery using pedobarography, the Foot and Ankle Outcome Score, and the Medical Outcomes Study 36-item short-form questionnaire. The plantar pressures were recorded using a TekScan HRMat(®) during walking and in a 1- and 2-foot stance. The resulting contour maps were segmented into 9 regions, with the peak pressure, normalized force, and arch index calculated. Surgical effects were analyzed using paired t tests. Postoperatively, the Foot and Ankle Outcome Score and Medical Outcomes Study 36-item short-form questionnaire scores increased significantly from 180 ± 78 to 360 ± 136 (p < .03) and 47 ± 18 to 71 ± 19 (p = .06), respectively. During the 2-foot stance, the normalized force had increased significantly in the lateral midfoot (p < .03), although no significant differences were found in peak pressures. No significant differences were observed in the 1-foot stance. During walking, the normalized force increased significantly in the lateral mid- and forefoot (p < .05). The peak pressure increased significantly in the lateral forefoot (p < .01). The arch index values demonstrated no significant changes. The increased questionnaire scores indicated that surgical correction improved the self-perceived health of the participants. Lateral shifts in the peak pressure and normalized force suggest that forefoot and midfoot loading is altered postoperatively, consistent with the goal of offloading the dysfunctional arch. Thus, the present study has demonstrated that surgical treatment of adult acquired flatfoot deformity can be accurately assessed using patient-reported outcome measures and plantar pressures.

show abstract

Section: Diagnosis Of Flatfootmentioning

confidence: 99%

Plantar Measurements to Determine Success of Surgical Correction of Stage IIb Adult Acquired Flatfoot Deformity

Matheis

Spratley

Hayes

et al. 2014

The Journal of Foot and Ankle Surgery

View full text Add to dashboard Cite

show abstract

“…Valgus secondary to bone loss in lateral ankle compartment and deltoid insufficiency include all anatomic aspects of the pes planus deformity; by focusing on the role of the posterior tibial tendon, this system misses the importance of the spring ligament, deltoid ligament, naviculocuneiform joint, and tarsometatarsal joints, all of which have been shown to be involved, as have the hindfoot and forefoot in the deformity [8,9,12,21,22]. As a result, numerous authors [5,9,20,24,27] have expanded the original classification system in an attempt to include the various structures involved.…”

Section: Limitationsmentioning

confidence: 99%

Classifications in Brief: Johnson and Strom Classification of Adult-acquired Flatfoot Deformity

Abousayed

Tartaglione

Rosenbaum

et al. 2016

Clinical Orthopaedics &Amp; Related Research

View full text Add to dashboard Cite

“…Patients with flatfoot may develop lower extremity pain, swelling, abnormal gait, and difficulty walking. There are various causes of flatfoot, including posterior tibial tendon (PTT) dysfunction (e.g., rupture, attenuation, or laceration), midfoot laxity, external rotation of the hindfoot, trauma (e.g., lisfranc, talonavicular joint, or calcaneus injuries), and neuromuscular imbalance [1]. Although flatfoot is a very common foot deformity, it remains one of the least understood, and optimal treatment is not widely accepted [2].…”

Section: Introductionmentioning

confidence: 99%

“…2324604), and also by MEXT KAKENHI 26860404, JSPS, Japan. 1 considering that adult acquired flatfoot is over years. An additional limitation of the experimental models is that the bone shapes and configurations may be different in healthy feet and flatfeet.…”

Section: Introductionmentioning

confidence: 99%

A finite element model of flatfoot (Pes Planus) for improving surgical plan

Wang

Imai

Kido

et al. 2014

2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society

View full text Add to dashboard Cite

Flatfoot is a foot condition caused by the collapse of the medial arch of the foot, and it can result in problems such as severe pain, swelling, abnormal gait, and difficulty walking. Despite being a very common foot deformity, flatfoot is one of the least understood orthopaedic problems, and the opinions regarding its optimal treatment vary widely. In this paper, an FE model of a flatfoot is proposed that is based on CT measurements. Surface meshes of the bones and soft tissue were generated from CT images and then simplified to reduce the node density. A total of 62 ligaments, 9 tendons, and the plantar fascia were modeled manually. Volume meshes of the different components were generated and combined to form the completed flatfoot model. A dynamic FE formulation was derived, and a balanced standing simulation was performed. The model was validated by comparing stress distribution results from the simulation to experimental data.

show abstract

Biomechanics of procedures used in adult flatfoot deformity

Cited by 53 publications

References 42 publications

Plantar Measurements to Determine Success of Surgical Correction of Stage IIb Adult Acquired Flatfoot Deformity

Plantar Measurements to Determine Success of Surgical Correction of Stage IIb Adult Acquired Flatfoot Deformity

Classifications in Brief: Johnson and Strom Classification of Adult-acquired Flatfoot Deformity

A finite element model of flatfoot (Pes Planus) for improving surgical plan

Contact Info

Product

Resources

About