Abstract:
:Measurements of the vertical component of ground reaction force (ORF) and dynamic center of pressure (COP) were recorded for five subjects with midfoot level amputations and six with Syme's ankle disarticulation amputations. All of the subjects underwent amputation surgery as a consequence of peripheral vascular disease and diabetes. GRF measurement was accomplished with the F-Scan system (Tekscan, Boston, MA). Each group exhibited a consistent, reproducible pattern of gait. Subjects with Syme's ankle disarticulation initiated initial loading response, i.e., heel strike, with a concentration of GRF in the center of the anatomic heel. COP progressed along the midline to the center of the anatomic forefoot, where GRF was concentrated at push-off. Midfoot amputees initiated loading at the lateral-posterior heel. COP progressed medially to the midline, where it progressed distally to the level of the distal residual limb (proximal metatarsal metaphyses). It then shifted medially under the base of the first metatarsal, where a small concentration of GRF occurred at push-off, similar to the normal foot. These findings explain the decreased magnitude of propulsion seen in midfoot level amputees and may explain the seemingly paradoxical increased metabolic cost of walking observed in midfoot amputees as compared with Syme's ankle disarticulation amputees.
journal_name
Foot Ankle Intjournal_title
Foot & ankle internationalauthors
Pinzur MS,Wolf B,Havey RMdoi
10.1177/107110079701801006subject
Has Abstractpub_date
1997-10-01 00:00:00pages
635-8issue
10eissn
1071-1007issn
1944-7876journal_volume
18pub_type
杂志文章abstract:BACKGROUND:The importance of isolated gastrocnemius contracture in disorders of the foot and ankle has been established in recent years. The aim of this study was to describe the proximal anatomical approach to the medial and lateral heads of gastrocnemius and to compare the sizes of the medial and lateral heads of the...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.3113/FAI.2009.1202
更新日期:2009-12-01 00:00:00
abstract:RECOMMENDATION:Several studies support the effect of peripheral vascular disease (PVD) on wound healing and surgical site infection (SSI). Despite this, there have been no specific studies proving the beneficial effect of revascularization on SSI prior to operative intervention in the setting of traumatic or elective f...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.1177/1071100719859343
更新日期:2019-07-01 00:00:00
abstract:BACKGROUND:Repeated elevation of intramuscular pressure (IMP) causes skeletal-muscles damage. The purpose of this paper was to investigate the regenerative effect of satellite cells autografted to the damaged muscle in a rabbit model. MATERIALS AND METHODS:Twenty-four adult rabbits were randomized into three groups: 1...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.3113/FAI.2010.0706
更新日期:2010-08-01 00:00:00
abstract:BACKGROUND:The Krackow locking loop technique has been used for Achilles tendon repair with documented success in allowing early range of motion with stable fixation. Previous studies documented failure at the rupture site by knot failure. We propose a modification of the traditional Krackow technique where the knots o...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.3113/FAI-2009-0410
更新日期:2009-05-01 00:00:00
abstract:BACKGROUND:Although a variety of surgical techniques are available for the treatment of ankle degenerative disease, arthrodesis is a common treatment especially for unilateral posttraumatic arthritis in young patients. A clear trend toward internal fixation for ankle arthrodesis is evident, but fusion site compression ...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.1177/1071100713483097
更新日期:2013-06-01 00:00:00
abstract::A patient presented with bilateral neuromas of medial dorsal nerves of the great toes. She had a 3-year history of localized tenderness and an "electric" type of pain. At surgery, neuromas of the dorsal medial digital nerves were identified and removed. The patient's symptoms resolved completely. ...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.1177/107110079601700711
更新日期:1996-07-01 00:00:00
abstract::Autologous iliac crest graft has been a standard source of supplementary bone for treating bony defects, fractures and arthrodeses. Bone graft substitutes have recently become widely available. This paper reports on the use of bone graft substitute in 28 patients that otherwise would have required an iliac crest graft...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.1177/107110070202300802
更新日期:2002-08-01 00:00:00
abstract::Osteochondral lesions of the talar dome are common problems encountered in orthopaedics. Procedures for the treatment of osteochondral lesions of the talus, including debridement of the joint, shaving of fibrillated cartilage, and resection or perforation of subchondral bone in the last decade, have been performed art...
journal_title:Foot & ankle international
pub_type: 杂志文章,评审
doi:10.1177/107110070402500311
更新日期:2004-03-01 00:00:00
abstract::A unique case of subsustentacular dislocation of the navicular is presented. The authors propose that such a severe displacement cannot occur until there is complete instability across the whole midfoot. The mechanism of injury and the treatment options are discussed. In the present case, there was late collapse of th...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.1177/107110079902000311
更新日期:1999-03-01 00:00:00
abstract::The use of locking plate technology in foot and ankle surgery has increased over the last decade. Reported applications include fracture repair, deformity correction, and arthrodesis. There is limited evidence, however, to guide clinicians with regard to the appropriate and optimal use of this technology. This work ai...
journal_title:Foot & ankle international
pub_type: 杂志文章,评审
doi:10.1177/1071100714523274
更新日期:2014-05-01 00:00:00
abstract:BACKGROUND:The presence of metatarsus adductus can complicate hallux valgus surgery. It reduces the gap between the first and second metatarsal and can restrict the transposition of the first metatarsal head. It also confounds the measurement of the first second intermetatarsal angle. MATERIALS AND METHODS:Twenty-seve...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.3113/FAI.2010.0220
更新日期:2010-03-01 00:00:00
abstract:BACKGROUND::The effect of bone mineral density (BMD) on outcomes from total ankle arthroplasty (TAA) has not been studied. BMD can be estimated by measuring Hounsfield units (HU) on standard computed tomography (CT), which is frequently performed prior to TAA. We aimed to identify whether tibial and talar HU measured f...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.1177/1071100718799102
更新日期:2019-01-01 00:00:00
abstract::Eight transtibial amputees had localized unremitting discomfort and pain in the distal anterior residual limb during prosthetic wear while weightbearing. Modification of the prosthetic socket did not change this pain. It was not consistent with "phantom limb" or causalgia/reflex sympathetic dystrophy-type etiologies. ...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.1177/107110079601700905
更新日期:1996-09-01 00:00:00
abstract::A case of Pacinian hyperplasia of the right great toe is reported. Pacinian hyperplasia is a rare benign and recently recognized painful lesion composed of an excess of well formed or hyperplastic Pacinian corpuscules, normaly involved in sensory innervation. This lesion that is usually observed in the hand, must be d...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.1177/107110070102200413
更新日期:2001-04-01 00:00:00
abstract:BACKGROUND:Suture anchors have been used for soft tissue repair in orthopedic surgery for decades. Recently, bioabsorbable suture anchors have increased in popularity and have spurred the introduction of ultrasound-assisted systems. The purpose of our study was to determine the clinical safety and efficacy of a new ult...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.1177/1071100720935122
更新日期:2020-09-01 00:00:00
abstract::Fifty embalmed human tibias were osteotomized to create a simulated vertical shear (supination-adduction) fracture of the medial malleolus and were stabilized using one of five internal fixation techniques. In offset axial testing, which simulated supination-adduction loading, the fixation strength of tibias stabilize...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.1177/107110079401500905
更新日期:1994-09-01 00:00:00
abstract:BACKGROUND:Subtalar instability, which may cause persistent symptoms after severe inversion ankle sprains, often involves failure of the interosseous talocalcaneal ligament (ITCL). While several clinicians have reported surgical treatment for this pathology, nonsurgical management policy has not been well considered. P...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.1177/107110070302400811
更新日期:2003-08-01 00:00:00
abstract::Three-phase bone scintigraphy diagnosis of Lisfranc injury in a patient after foot trauma is discussed. Early diagnosis of Lisfranc joint injury is frequently missed and radionuclide bone scintigraphy may show a specific pattern where the x-rays are inconclusive. ...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.1177/107110079501601107
更新日期:1995-11-01 00:00:00
abstract::Sixteen feet with retrocalcaneal bursitis (RB) and twenty-two feet with calcific Achilles insertional tendinosis (IAT-CS) underwent retrocalcaneal decompression after failure of nonoperative treatment. Follow-up evaluation at least two years after surgery included AOFAS Ankle-Hindfoot subscale scores, satisfaction, ti...
journal_title:Foot & ankle international
pub_type: 临床试验,杂志文章
doi:10.1177/107110070002100802
更新日期:2000-08-01 00:00:00
abstract:BACKGROUND:Neuroma results from disorganized regeneration following nerve injury and may be symptomatic. The aim of this study was to investigate the causes, treatment, and outcomes of operatively treated sural neuromas, and to describe the factors associated with persistent or unchanged postoperative pain symptoms. M...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.1177/1071100719828375
更新日期:2019-05-01 00:00:00
abstract:BACKGROUND:Residual supination of the midfoot during reconstruction of the stage II adult-acquired flatfoot deformity (AAFD) is often addressed with a medial cuneiform (Cotton) osteotomy after adequate correction of the hindfoot valgus deformity. The purpose of this study was to determine if there was a correlation bet...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.1177/1071100718822839
更新日期:2019-05-01 00:00:00
abstract::A case of tibiofibular synostosis stress fracture is reported with its clinical and radiographic appearance as well as treatment. ...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.1177/107110070402500711
更新日期:2004-07-01 00:00:00
abstract:RECOMMENDATION:There is evidence that the use of WEIGHTBEARING imaging aids in the assessment of progressive collapsing foot deformity (PCFD). The following WEIGHTBEARING conventional radiographs (CRs) are necessary in the assessment of PCFD patients: anteroposterior (AP) foot, AP or mortise ankle, and lateral foot. If...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.1177/1071100720950734
更新日期:2020-10-01 00:00:00
abstract::Factors making runners more susceptible to injuries were identified with a comparative study between a healthy control group (216) and runners (66) suffering from overuse pathology. On static and dynamic footprint, the angles alpha0 (static) and alpha1 (dynamic) between heel and forefoot have been measured. Analysis s...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.1177/107110079801900106
更新日期:1998-01-01 00:00:00
abstract:BACKGROUND:There is a paucity of literature on the effect of calcaneal fractures on subtalar joint motion and patient satisfaction. The objective of this study was to determine the relationship between subtalar joint motion and outcome satisfaction in patients who had displaced intraarticular calcaneal fractures. The d...
journal_title:Foot & ankle international
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1177/107110070402500912
更新日期:2004-09-01 00:00:00
abstract:BACKGROUND:Understanding the plantar nerve anatomy is crucial for safe endoscopic surgery of the sole. We aimed to anatomically dissect the lateral aspect and soles of cadaveric feet to investigate the safety of peroneus longus tendoscopy with a plantar lateral portal and the safe zones for plantar portals. METHODS:We...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.1177/1071100715607964
更新日期:2016-02-01 00:00:00
abstract::Tarsal coalition is a bridging between the tarsal bones of the foot. The bridge may be composed of bone, cartilage, fibrous tissue, or a combination of these. When symptomatic, patients usually present with hindfoot pain and frequent sprains as children, adolescents, or young adults. The classical appearance is a rigi...
journal_title:Foot & ankle international
pub_type: 杂志文章,评审
doi:10.1177/107110079601700509
更新日期:1996-05-01 00:00:00
abstract:BACKGROUND:Chronic exertional compartment syndrome (CECS) occurs bilaterally in approximately 60% of patients. Fasciotomy is the primary corrective treatment. We hypothesized that bilateral fasciotomy can be done during the same operative procedure with early return to sports and low complication rates METHOD:Sixteen ...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.1177/107110070502601201
更新日期:2005-12-01 00:00:00
abstract:BACKGROUND:Patients with arthritis or severe dysfunction involving both the ankle and subtalar joints can benefit from tibiotalocalcaneal (TTC) arthrodesis or total ankle replacement and subtalar fusion. TTC fusion is considered by many as a salvage operation resulting in a stiff ankle and hindfoot, considerably limiti...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.1177/1071100716642751
更新日期:2016-07-01 00:00:00
abstract:BACKGROUND:Dorsal pain from osteoarthritic midfoot joints is thought to be relayed by branches of the medial and lateral plantar, sural, saphenous, and deep peroneal nerves (DPN). However, there is no consensus on the actual number or pathways of the nervous branches for midfoot joint capsular innervation. This study e...
journal_title:Foot & ankle international
pub_type: 杂志文章
doi:10.1177/1071100719858143
更新日期:2019-10-01 00:00:00