Fracture mechanics. A comparison study of torsional stress on bone.

Abstract:

:Fractures that result from torsional loading of shafts in mechanical systems of nonbiologic materials generate a fracture line that forms a 45 degrees angle to an axis that is perpendicular to the direction of torsional loading on the shaft. As tension and compression are applied to these isotropic substances, the angle of fracture increases and decreases, respectively. Understanding how these forces, particularly compressive forces, generate elongation of a spiral fracture increases the ability to predict the extent of injury to bone. Fibular and metatarsal fractures are of primary importance to the podiatric physician, but any spiral fracture may be subject to torsional loading. Thus the principles stated here apply to the entire skeletal system. The purpose of this article is to provide a better understanding of the mechanics behind the causes and characteristics of fractures and to explore whether these same factors apply to the fracture mechanics of bone.

journal_name

J Am Podiatr Med Assoc

authors

VanCourt RB,Byron SE,Ali SJ,Caldwell BD

doi

10.7547/87507315-90-4-167

subject

Has Abstract

pub_date

2000-04-01 00:00:00

pages

167-74

issue

4

eissn

8750-7315

issn

1930-8264

journal_volume

90

pub_type

杂志文章
  • New nonfusion procedure for talocalcaneal coalitions with a fixed heel valgus.

    abstract::The authors present a case of bilateral middle facet talocalcaneal coalitions with peroneal spasm producing a fixed valgus heel. They introduce a corrective procedure used at the Fountain Valley Regional Hospital and Medical Center and discuss its application in podiatric surgery. Correction included resection of the ...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/87507315-83-4-191

    authors: Yen RG,Giacopelli JA,Granoff DP,Smith SD

    更新日期:1993-04-01 00:00:00

  • "I did so!" But can you prove it? Avoiding claims through documentation.

    abstract::The author explains the need to document medical records to provide protection in litigation and to enhance medical care. Practical tips to make documentation easier and more efficient are given. ...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/87507315-85-3-135

    authors: Callahan LM

    更新日期:1995-03-01 00:00:00

  • Methicillin-Resistant Staphylococcus aureus Endocarditis from a Diabetic Foot Ulcer Understanding and Mitigating the Risk.

    abstract::Diabetic foot infections are a common cause of morbidity and mortality in the United States, and successful treatment often requires an aggressive and prolonged approach. Recent work has elucidated the importance of appropriate therapy for a given severity of diabetic foot infection, and highlighted the ongoing risk s...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/17-139

    authors: Hale AJ,Vicks E,LaSalvia MT,Giurini JM,Karchmer AW

    更新日期:2018-11-01 00:00:00

  • Modified Youngswick procedure for hallux limitus.

    abstract::Multiple surgical procedures have been described for the correction of hallux limitus deformity. We describe a new modification of the Youngswick procedure for the surgical treatment of hallux limitus. Other procedures for hallux limitus correction are also discussed. This modified Youngswick procedure will provide a ...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/0970420

    authors: Radovic P,Yadav-Shah E,Choe K

    更新日期:2007-09-01 00:00:00

  • Recent concepts in understanding a child's pain.

    abstract::The management of pain in children is a complex process that has significant differences from adult pain management. The authors describe the myth of children's lack of pain and how that myth has resulted in frequent undermedication of children's pain. The authors describe the physical and psychological aspects of pai...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章,评审

    doi:10.7547/87507315-81-5-231

    authors: Mahan KT,Strelecky DC

    更新日期:1991-05-01 00:00:00

  • Possible therapeutic effects of growth hormone on wound healing in the diabetic patient.

    abstract::Growth factors are increasingly investigated for their role in wound healing. The authors present evidence from human and animal studies suggesting that growth hormone induces a positive nitrogen balance, enhances connective-tissue synthesis, and increases lean body mass. The physiology of diabetes and wound healing i...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章,评审

    doi:10.7547/87507315-88-1-25

    authors: Massey KA,Blakeslee C,Pitkow HS

    更新日期:1998-01-01 00:00:00

  • AIDS education for the podiatric physician. Evaluating program impact.

    abstract::An important component in the development of any educational program is the evaluation of its effectiveness. The program described in this article was designed in such a way that its impact on practitioners' knowledge, attitudes, and clinical practices regarding human immunodeficiency virus (HIV) could be evaluated. O...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/87507315-80-1-31

    authors: Holmes CA

    更新日期:1990-01-01 00:00:00

  • Vascular hamartoma. A case report.

    abstract::A case of a vascular hamartoma occurring in the plantar aspect of the foot is reported. Surgical excision of the mass was the treatment of choice, and the surgery was performed after appropriate diagnostic measures had been undertaken. A normal postoperative course ensued, and no recurrence has been reported. ...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/87507315-80-7-377

    authors: Petrov O,Zaremba JS

    更新日期:1990-07-01 00:00:00

  • Planovalgus foot deformity. Current status.

    abstract::Flatfoot may be classified as pathologic or physiologic. Pathologic flatfoot is often characterized by stiffness of the foot, causes disability, and requires treatment. Physiologic flatfoot is a normal variation; it causes no disability and tends to improve with time. Physiologic flatfoot is most common in individuals...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 历史文章,杂志文章,评审

    doi:10.7547/87507315-89-2-94

    authors: Staheli LT

    更新日期:1999-02-01 00:00:00

  • Postoperative infection after excisional toenail matrixectomy: a retrospective clinical audit.

    abstract:BACKGROUND:Excisional toenail matrixectomies are performed on the area of the foot that has been reported to have the highest concentration of resident microorganisms. A retrospective infection audit was performed to identify whether this unique area of the foot was more susceptible to postoperative infection. METHODS...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/1010316

    authors: Rusmir A,Salerno A

    更新日期:2011-07-01 00:00:00

  • Podiatric pathology of lupus erythematosus.

    abstract::Lupus erythematosus is an enigmatic disease. Its podiatric manifestations are largely cutaneous, but vasculitic involvements may produce complications. The authors review much of the histopathology of lupus erythematosus that is relevant to the podiatric physician and surgeon. Awareness of the serious systemic implica...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章,评审

    doi:10.7547/87507315-79-6-281

    authors: McCarthy DJ,Lagana FJ

    更新日期:1989-06-01 00:00:00

  • Limb salvage in recurrent synovial sarcoma of the right ankle and lower leg.

    abstract::Synovial sarcoma of the extremities represents 7% of all soft-tissue sarcomas. This article presents the case of a patient who was treated for a synovial sarcoma of the lateral aspect of the distal lower leg extending to the ankle and involving the fibular bone. The patient underwent a wide excision of the tumor, incl...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/87507315-92-2-90

    authors: Sobel E,Giorgini R,Oropeza R,Bapat K,Richardson H

    更新日期:2002-02-01 00:00:00

  • Total contact casting.

    abstract::The treatment of diabetic foot ulcerations has been a difficult task for podiatrists. Numerous methods and materials have been used in an attempt to alleviate this frustrating and complex treatment dilemma. However, there is one treatment method that has been used successfully for decades on plantar ulcerations of the...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/87507315-85-3-172

    authors: Baker RE

    更新日期:1995-03-01 00:00:00

  • Efficacy of disinfectants against fungi isolated from skin and nail infections.

    abstract::Commercial disinfectants classified as fungicides may not be effective against commonly encountered fungi within reasonable periods. Cell suspensions of clinical fungal isolates were exposed to use-dilutions of various disinfectants. Quaternary ammonium compounds, iodophors, and phenolics were not fungicidal against a...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/87507315-83-7-386

    authors: Terleckyj B,Axler DA

    更新日期:1993-07-01 00:00:00

  • How effective is orthotic treatment in patients with recurrent diabetic foot ulcers?

    abstract:BACKGROUND:We assessed the efficacy of customized foot orthotic therapy by comparing reulceration rates, minor amputation rates, and work and daily living activities before and after therapy. Peak plantar pressures and peak plantar impulses were compared with the patients not wearing and wearing their prescribed footwe...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/1030281

    authors: Fernandez ML,Lozano RM,Diaz MI,Jurado MA,Hernandez DM,Montesinos JV

    更新日期:2013-07-01 00:00:00

  • Computed tomographic imaging of the foot and ankle. Developmental and congenital anomalies.

    abstract::Computed tomography is a primary imaging technique for evaluating congenital and developmental anomalies of the foot and ankle. Other imaging modalities have special capabilities, but computed tomography is a fast, safe, and effective method of assessing the anatomy. To demonstrate this point, the authors present and ...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章,评审

    doi:10.7547/87507315-90-5-223

    authors: Lomasney LM,Demos TC,Harris EJ

    更新日期:2000-05-01 00:00:00

  • Development of a novel stocking for foot sole pain in patients with rheumatoid arthritis.

    abstract:BACKGROUND:We sought to investigate the clinical efficacy of the Fuss-sole (Kuroda, Osaka, Japan), a newly developed stocking, in patients with severe foot pain attributable to rheumatoid arthritis. METHODS:The Fuss-sole stocking incorporates a plantar insole made of breathable fabric. Twenty patients with rheumatoid ...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/1000010

    authors: Matsuno H,Utsunomiya T

    更新日期:2010-01-01 00:00:00

  • Brachymetatarsia. Case report and surgical considerations.

    abstract::The authors present a case of congenital idiopathic brachymetatarsia of the fourth metatarsal. A combination of techniques was used to address the components of the deformity and its correction, which include preoperative soft tissue stretching, Z-skin plasty, Z-tendon lengthening, Z-lengthening metatarsal osteotomy w...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/87507315-85-11-685

    authors: Solomon MG,Blacklidge DK

    更新日期:1995-11-01 00:00:00

  • Plantar Pressure and Gait Symmetry in Individuals with Fractures versus Tendon Injuries to the Hindfoot.

    abstract:BACKGROUND:The intent of this study was to determine whether differences in function, walking characteristics, and plantar pressures exist in individuals after operative fixation of an intra-articular calcaneal fracture (HFX) compared with individuals with operative repair of an Achilles tendon rupture (ATR). METHODS:...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/14-073.1

    authors: Albin SR,Cornwall MW,McPoil TG,Van Boerum DH,Morgan JM

    更新日期:2015-11-01 00:00:00

  • Missing Midline Metatarsals Conform to Plantar Arterial Arch Dysgenesis.

    abstract::Midline metatarsal ray deficiencies, which occur in approximately half of congenital short limbs with fibular deficiency, provide the most distal and compelling manifestation of a fluid spectrum of human lower-extremity congenital long bone reductions; this spectrum syndromically affects the long bone triad of the pro...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/18-031

    authors: Hootnick DR

    更新日期:2020-05-01 00:00:00

  • Interrater Reliability of Spectral Doppler Waveform Analysis Among Podiatric Clinicians.

    abstract:BACKGROUND:Spectral Doppler ultrasound examination of pedal arteries is one of the most frequently used noninvasive assessment methods by health-care professionals for the diagnosis and ongoing monitoring of people at risk for or living with peripheral arterial disease. The aim of this study was to determine the interr...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/16-026

    authors: Formosa C,Ellul C,Mizzi A,Mizzi S,Gatt A

    更新日期:2018-07-01 00:00:00

  • Effect of an educational intervention on nurses' knowledge of foot care and on the foot health of older residents.

    abstract:BACKGROUND:Older people have multiple foot health problems; therefore, nursing staff need to pay attention to the foot care of older people, especially in long-term care and nursing homes. The aim of this study was to investigate the knowledge of nursing staff (n = 16) regarding foot care, their foot-care activities, a...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/1010159

    authors: Stolt M,Routasalo P,Suhonen R,Leino-Kilpi H

    更新日期:2011-03-01 00:00:00

  • A Rare Cause of Heel Pain: A Calcaneal Spur Fracture.

    abstract::Heel pain is a complaint frequently encountered in orthopedic clinics that has peculiar symptoms and may have various etiologic causes. Calcaneal spur fracture is an extremely rare cause of heel pain, and only four cases had previously been reported in the English language literature. We present a 45-year-old woman wh...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/17-111

    authors: Arican M,Turhan Y,Karaduman ZO

    更新日期:2019-03-01 00:00:00

  • Fish Pedicure: A Risky Aesthetic Treatment for Tourists.

    abstract::Fish pedicure is considered to be an aesthetic treatment, first conceived in Turkey, in Kangal Hot Springs. These hot waters are rich in two species of fish of the Cyprinidae family that feed on the stratum corneum layer of patients with psoriasis. This treatment was later adapted to many spa resorts for "fish pedicur...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/19-006

    authors: Nazzaro G,Germiniasi F,Veraldi S

    更新日期:2020-09-01 00:00:00

  • Mortality rates and diabetic foot ulcers: is it time to communicate mortality risk to patients with diabetic foot ulceration?

    abstract::Five-year mortality rates after new-onset diabetic ulceration have been reported between 43% and 55% and up to 74% for patients with lower-extremity amputation. These rates are higher than those for several types of cancer including prostate, breast, colon, and Hodgkin's disease. These alarmingly high 5-year mortality...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章,评审

    doi:10.7547/0980489

    authors: Robbins JM,Strauss G,Aron D,Long J,Kuba J,Kaplan Y

    更新日期:2008-11-01 00:00:00

  • Surgical treatment of malignant tumors of the calcaneus.

    abstract:BACKGROUND:Amputation has been most commonly considered the only option to achieve local tumor control for calcaneal malignancies. Advances in oncologic treatment modalities and wide resection have made limb salvage increasingly possible. We retrospectively reviewed nine patients with calcaneal malignancies treated wit...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/0003-0538-104.1.71

    authors: Li J,Wang Z

    更新日期:2014-01-01 00:00:00

  • Alterations in glomerular permeability in streptozotocin-induced diabetic rats.

    abstract::The alteration in glomerular basement membrane permeability associated with microangiopathy in streptozotocin-induced diabetic rats was studied by determining the movement across the glomerular basement membrane of anionic ferritin probes injected into rats at different points in the development of the disease. Visual...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/87507315-86-2-57

    authors: Boyd RB,Thompson VW,Atkin J

    更新日期:1996-02-01 00:00:00

  • Ultrasonography and magnetic resonance imaging in the diagnosis of Morton's neuroma.

    abstract:BACKGROUND:Magnetic resonance imaging (MRI) and ultrasonography are used widely for the diagnosis of Morton's neuroma. The aim of this study was to assess the accuracy of these two modalities as diagnostic tools in Morton's neuroma. METHODS:Fifty feet of 47 consecutive patients (39 women and 8 men; mean age, 46 years;...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/1020184

    authors: Fazal MA,Khan I,Thomas C

    更新日期:2012-05-01 00:00:00

  • Intratendinous Ganglion Cyst of the Extensor Digitorum Longus: A Case Report.

    abstract::Ganglion cysts have been recorded in many areas throughout the body. Intratendinous ganglion cysts in the foot are very rare. We present the case of 51-year-old woman with a recurrent right foot ganglion cyst. Surgical excision revealed a ganglion cyst in the tendon sheath of the extensor digitorum longus. It is impor...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/19-046

    authors: Xu H,Gazes MI,Jariwala T,Gambardella PT

    更新日期:2020-01-01 00:00:00

  • The Impact of Glycosylated Hemoglobin and Diabetes Mellitus on Postoperative Wound Healing Complications and Infection Following Foot and Ankle Surgery.

    abstract::Abstract BACKGROUND: The relationship between hyperglycemia and adverse outcomes following surgery has been widely documented. Long-term glucose control has been recognized as a risk factor for postoperative complications. In the foot and ankle literature, long-term glycemic control as a potential perioperative risk f...

    journal_title:Journal of the American Podiatric Medical Association

    pub_type: 杂志文章

    doi:10.7547/13-026.1

    authors: Humphers J,Shibuya N,Fluhman BL,Jupiter D

    更新日期:2014-06-24 00:00:00