Gastrocnemius operating length with ankle foot orthoses in cerebral palsy.

Abstract:

BACKGROUND:Many individuals with cerebral palsy wear ankle foot orthoses during daily life. Orthoses influence joint motion, but how they impact muscle remains unclear. In particular, the gastrocnemius is commonly stiff in cerebral palsy. Understanding whether orthoses stretch or shorten this muscle during daily life may inform orthosis design and rehabilitation. OBJECTIVES:This study investigated the impact of different ankle foot orthoses on gastrocnemius operating length during walking in children with cerebral palsy. STUDY DESIGN:Case series, within subject comparison of gastrocnemius operating length while walking barefoot and with two types of ankle foot orthoses. METHODS:We performed gait analyses for 11 children with cerebral palsy. Each child was fit with two types of orthoses: a dynamic ankle foot orthosis (Cascade dynamic ankle foot orthosis) and an adjustable dynamic response ankle foot orthosis (Ultraflex ankle foot orthosis). Musculoskeletal modeling was used to quantify gastrocnemius musculotendon operating length and velocity with each orthosis. RESULTS:Walking with ankle foot orthoses could stretch the gastrocnemius more than barefoot walking for some individuals; however, there was significant variability between participants and orthoses. At least one type of orthosis stretched the gastrocnemius during walking for 4/6 and 3/5 of the Gross Motor Functional Classification System Level I and III participants, respectively. AFOs also reduced peak gastrocnemius lengthening velocity compared to barefoot walking for some participants, with greater reductions among the Gross Motor Functional Classification System Level III participants. Changes in gastrocnemius operating length and lengthening velocity were related to changes in ankle and knee kinematics during gait. CONCLUSION:Ankle foot orthoses impact gastrocnemius operating length during walking and, with proper design, may assist with stretching tight muscles in daily life. Clinical relevance Determining whether ankle foot orthoses stretch tight muscles can inform future orthotic design and potentially provide a platform for integrating therapy into daily life. However, stretching tight muscles must be balanced with other goals of orthoses such as improving gait and preventing bone deformities.

journal_name

Prosthet Orthot Int

authors

Choi H,Wren TAL,Steele KM

doi

10.1177/0309364616665731

subject

Has Abstract

pub_date

2017-06-01 00:00:00

pages

274-285

issue

3

eissn

0309-3646

issn

1746-1553

pii

0309364616665731

journal_volume

41

pub_type

杂志文章
  • Development and measurement properties of the Orthotics and Prosthetics Users' Survey (OPUS): a comprehensive set of clinical outcome instruments.

    abstract::The need to measure and evaluate orthotics and prosthetics (O&P) practice has received growing recognition in the past several years. Reliable and valid self-report instruments are needed that can help facilities evaluate patient outcomes. The objective of this project was to develop a set of self-report instruments t...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.1080/03093640308726682

    authors: Heinemann AW,Bode RK,O'Reilly C

    更新日期:2003-12-01 00:00:00

  • New concept of spinal orthosis for weakened back muscles.

    abstract::An anterior bending posture of the trunk during walking is often seen among the elderly commonly due to weakened thoraco-lumbar and gluteal muscles. For the management of this debilitating condition, the authors have developed a modified design of thoraco-lumbosacral orthosis (TLSO). Incorporated in this device are po...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.3109/03093649509078233

    authors: Watanabe H,Kutsuna T,Asami T,Inoue E

    更新日期:1995-04-01 00:00:00

  • Variability of kinetic variables during gait in unilateral transtibial amputees.

    abstract:BACKGROUND:Prosthetic gait increases demands on stability. Some variability measures can be used to investigate the stability of movement for prosthetic feet. OBJECTIVES:The purpose of this study was to determine the influence of the prosthetic foot on ground reaction force variability for transtibial amputee gait. S...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.1177/0309364612439572

    authors: Svoboda Z,Janura M,Cabell L,Elfmark M

    更新日期:2012-06-01 00:00:00

  • Importance of neurological evaluation before reverse shoulder arthroplasty in patients with previous poliomyelitis.

    abstract::We present a case report of a patient, affected by post-polio syndrome and cuff tear arthropathy of his right shoulder, who underwent reverse shoulder arthroplasty. A previous radial deficiency was unmasked in the post-operative follow-up, with passive elbow bending when the forearm was put in an antigravitational pos...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.1080/03093640802425459

    authors: Castoldi F,Lollino N,Caranzano F,Assom M

    更新日期:2009-06-01 00:00:00

  • Mandible reconstruction: History, state of the art and persistent problems.

    abstract:BACKGROUND:Mandibular reconstruction has been experiencing an amazing evolution. Several different approaches are used to reconstruct this bone and therefore have a fundamental role in the recovery of oral functions. OBJECTIVES:This review aims to highlight the persistent problems associated with the approaches identi...

    journal_title:Prosthetics and orthotics international

    pub_type: 历史文章,杂志文章,评审

    doi:10.1177/0309364613520032

    authors: Ferreira JJ,Zagalo CM,Oliveira ML,Correia AM,Reis AR

    更新日期:2015-06-01 00:00:00

  • The treatment of longitudinal ulnar deficiency.

    abstract::Longitudinal ulnar deficiency, whose detailed anatomy is varied, is often accompanied by other abnormalities and appears as part of several syndromes. The history of its classification is reviewed, and the treatments, which have been offered, described. Follow-up of a series shows that the function achieved is good an...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.3109/03093649109164643

    authors: Lovett RJ

    更新日期:1991-08-01 00:00:00

  • Contact force ratio: a new parameter to assess foot arch function.

    abstract::Static footprint parameters have been used to quantify arch height with conflicting results. This could be caused by the inherent inaccuracy and variations of the methodology used. Since the foot is a dynamic structure that undergoes changes during a step, it is more desirable to capture and analyse the dynamic footpr...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.1080/03093640408726701

    authors: Leung AK,Cheng JC,Zhang M,Fan Y,Dong X

    更新日期:2004-08-01 00:00:00

  • Mathematical modelling and field trials of an inexpensive endoskeletal above-knee prosthesis.

    abstract::The swing-phase motion of the shank of an above-knee prosthesis has been modelled mathematically. An inexpensive endoskeletal prosthesis was designed using the Jaipur foot and conduit pipes with a hinge joint for the knee. Results of field trials and the modelling indicate that a very simple above-knee prosthesis can ...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.3109/03093649209164323

    authors: Mohan D,Sethi PK,Ravi R

    更新日期:1992-08-01 00:00:00

  • Validity of the Comprehensive High-Level Activity Mobility Predictor in a heterogeneous population with lower extremity amputations.

    abstract:BACKGROUND AND OBJECTIVE:Lower extremity amputee outcome measures assess basic mobility. The Comprehensive High-Level Activity Mobility Predictor was developed to assess high-level mobility. Validity evidence was collected in military men with traumatic lower extremity amputations. This study examines its validity in a...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.1177/0309364619887559

    authors: Anton A,Legault Z,Dudek N

    更新日期:2020-04-01 00:00:00

  • Taxonomy of clinical encounters during the first 90 days post-delivery of an initial lower limb prosthesis.

    abstract:BACKGROUND:The incidence and etiology of prosthetic services utilization is poorly understood during the first 90 days post-delivery of the initial lower limb prosthesis. This period is of critical importance, as prevailing policy dictates limits on the reimbursement for certain services provided during this time perio...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.1177/0309364618774053

    authors: Lee DJ,Wininger M,Mahler D,Parisi M

    更新日期:2018-10-01 00:00:00

  • Comparison of gait between healthy participants and persons with spinal cord injury when using the advanced reciprocating gait orthosis.

    abstract:BACKGROUND:The advanced reciprocating gait orthosis (ARGO) has a rigid structure which provides restricted movement at the hip, knee, and ankle joints and incorporates a pelvic section with an extended section in the lumbar region. Healthy subjects, when walking with an RGO in situ, could feasibly demonstrate the level...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.1177/0309364615592699

    authors: Arazpour M,Joghtaei M,Bahramizadeh M,Ahmadi Bani M,Hutchins SW,Curran S,Mousavi ME,Sharifi G,Mardani MA

    更新日期:2016-04-01 00:00:00

  • Function after through-knee compared with below-knee and above-knee amputation.

    abstract::Fifty-nine amputees, 24 below-knee (BK), 17 through-knee (TK) and 18 above-knee (AK) who had prosthetic replacements, were evaluated using a questionnaire which provided a quantitative and qualitative assessment scale for the prosthetic function. The ability to apply or don the prosthesis was noted in 100% of the BK, ...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.3109/03093649209164336

    authors: Hagberg E,Berlin OK,Renström P

    更新日期:1992-12-01 00:00:00

  • Heel lifting as a conservative therapy for osteoarthritis of the hip: based on the rationale of Pauwels' intertrochanteric osteotomy.

    abstract::Patients with osteoarthritis of the hip were treated with a conservative therapy of heel lifting. Orthoses were applied on 35 hips in 33 subjects and the cases were followed for 23 months on average. Dramatic pain relief was reported, but the time required to reduce or completely relieve pain increased according to th...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.3109/03093649709164544

    authors: Ohsawa S,Ueno R

    更新日期:1997-08-01 00:00:00

  • Shock absorption during transtibial amputee gait: Does longitudinal prosthetic stiffness play a role?

    abstract:BACKGROUND:Reduced-stiffness components are often prescribed in lower-limb prostheses, but their efficacy in augmenting shock absorption has been inconclusive. OBJECTIVES:To perform a systematic variation of longitudinal prosthetic stiffness over a wide range of values and to evaluate its effect on shock absorption du...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.1177/0309364616640945

    authors: Boutwell E,Stine R,Gard S

    更新日期:2017-04-01 00:00:00

  • Knee disarticulation versus above-knee amputation.

    abstract::If below-knee amputation is impossible, knee disarticulation should be considered before above-knee amputation, regardless of age and etiology. Knee disarticulation which leaves the femur and patella untoched offers many advantages. The surgical technique is simple and non-traumatic since no bone or muscle tissue is t...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.3109/03093647909164695

    authors: Baumgartner RF

    更新日期:1979-04-01 00:00:00

  • Quality of life of persons with transfemoral amputation: Comparison of socket prostheses and osseointegrated prostheses.

    abstract:BACKGROUND:Until recently, no study had compared the quality of life of persons with transfemoral amputation treated with osseointegration to socket prosthesis users. OBJECTIVES:Comparison of quality of life in two types of prostheses users: a cohort of patients with osseointegration and patients equipped with a socke...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.1177/0309364620948649

    authors: Pospiech PT,Wendlandt R,Aschoff HH,Ziegert S,Schulz AP

    更新日期:2020-08-25 00:00:00

  • Rotational moulding in the production of prostheses.

    abstract::This paper discusses the place of rotational moulding in the provision of prosthetic shanks and shank sections. It covers the selection of thermoplastic material, the moulding conditions and their automation in a machine process, and the development of a suitable range of moulds. Also covered is the question of interf...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.3109/03093648509164822

    authors: Coombs AG,Lawrence RB,Davies RM

    更新日期:1985-04-01 00:00:00

  • Effect of powered gait orthosis on walking in individuals with paraplegia.

    abstract:BACKGROUND:The important purpose of a powered gait orthosis is to provide active joint movement for patients with spinal cord injury. OBJECTIVES:The aim of this study was to clarify the effect of a powered gait orthosis on the kinematics and temporal-spatial parameters in paraplegics with spinal cord injury. STUDY DE...

    journal_title:Prosthetics and orthotics international

    pub_type: 临床试验,杂志文章

    doi:10.1177/0309364612463164

    authors: Arazpour M,Ahmadi Bani M,Kashani RV,Tabatabai Ghomshe F,Mousavi ME,Hutchins SW

    更新日期:2013-08-01 00:00:00

  • Measuring foam model shapes with a contact digitizer.

    abstract:BACKGROUND AND AIM:It is difficult to measure foam model shapes using contact digitizers because the stylus contact tends to get stuck in the soft foam. The aim of this paper is to describe a technique to overcome this challenge and to assess its effect on digitizer error. TECHNIQUE:A controlled laboratory study was c...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.1177/0309364610394478

    authors: Sanders JE,Severance MR

    更新日期:2011-06-01 00:00:00

  • Preliminary experiences with modified SACH feet manufactured and used in a tropical developing world setting.

    abstract::In a prospective study of polypropylene (PP) prostheses for trans-tibial amputees four different modified SACH feet were used. These are identified as: 1. BAVI from the national manufacturer of componentry in BaVi; 2. HCMC a design initiated by the International Committee of the Red Cross (ICRC) together with the Army...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.3109/03093649909071641

    authors: Jensen JS,Heim S

    更新日期:1999-12-01 00:00:00

  • Total surface bearing self suspending above-knee sockets.

    abstract::A new type of above-knee socket has been designed to provide total surface support and to dispense with ischial bearing as the primary weight bearing area. The socket is based upon the hypothesis that if the soft tissues of an above-knee stump are adequately supported in a suitably shaped container they will behave un...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.3109/03093647909103096

    authors: Redhead RG

    更新日期:1979-12-01 00:00:00

  • Using NetMeeting for remote configuration of the Otto Bock C-Leg: technical considerations.

    abstract::Telehealth has the potential to be a valuable tool for technical and clinical support of computer controlled prosthetic devices. This pilot study examined the use of Internet-based, desktop video conferencing for remote configuration of the Otto Bock C-Leg. Laboratory tests involved connecting two computers running Mi...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.1080/03093640208726638

    authors: Lemaire ED,Fawcett JA

    更新日期:2002-08-01 00:00:00

  • The Prosthetist Role Expectations Scale: Development and initial validation of a scale for clinical settings.

    abstract:BACKGROUND:The role of the prosthetist has changed substantially over the past century. In the transition from 'limb-maker' to 'clinician', the expectations of prosthetics professionals have also changed. OBJECTIVES:To develop and test a new scale capable of assessing and comparing current expectations of the roles of...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.1177/0309364617698519

    authors: Mackenzie RL,Morris ME,Murphy G,Hodge MC

    更新日期:2018-04-01 00:00:00

  • Analysis of the swing phase dynamics and muscular effort of the above-knee amputee for varying prosthetic shank loads.

    abstract::The purpose of this study was to determine the effect of varying prosthetic shank mass, while maintaining the mass centre location and moment of inertia, on the swing phase kinematics, kinetics and hip muscular effort of free speed above-knee (AK) amputee gait. Six AK amputees, wearing similar prosthetic designs, had ...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.3109/03093649009080338

    authors: Hale SA

    更新日期:1990-12-01 00:00:00

  • A method for performance comparison of polycentric knees and its application to the design of a knee for developing countries.

    abstract:BACKGROUND:Polycentric knees for transfemoral prostheses have a variety of geometries, but a survey of literature shows that there are few ways of comparing their performance. OBJECTIVES:Our objective was to present a method for performance comparison of polycentric knee geometries and design a new geometry. STUDY DE...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.1177/0309364616652017

    authors: Anand TS,Sujatha S

    更新日期:2017-08-01 00:00:00

  • Evaluation of introducing the team approach to the care of the amputee: the Dulwich study.

    abstract::The effects of introducing the Team Approach to the management of the lower limb amputee has been assessed in a consecutive series of 233 patients over a five year period. During the first year, baseline data was collected and during the subsequent yearly phases the effects of introducing a physiotherapist co-ordinato...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.3109/03093648709079376

    authors: Ham R,Regan JM,Roberts VC

    更新日期:1987-04-01 00:00:00

  • Development and characterisation of electromechanical muscles for driving trans-humeral myoelectric prostheses.

    abstract::Recently, attempts have been made to construct actuators with similar behaviour to natural muscles. However the results have been inadequate for application to practical prostheses. For example, muscle wire, which has too low an efficiency to be powered by batteries and McKibben muscles which require two power supplie...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.1080/03093640208726652

    authors: Escudero AZ,Alvarez J,Leija L

    更新日期:2002-12-01 00:00:00

  • Removable rigid dressings: a retrospective case-note audit to determine the validity of post-amputation application.

    abstract::This study investigated the validity of post-amputation application of removable rigid dressings (RRDs) for trans-tibial amputees, regarding preparation for prosthetic management and key rehabilitation timelines. It was hypothesised that the use of RRDs would result in faster preparation of the residual limb for prost...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.1080/03093640802016795

    authors: Taylor L,Cavenett S,Stepien JM,Crotty M

    更新日期:2008-06-01 00:00:00

  • Lower limb amputation. Part 2: Rehabilitation--a 10 year literature review.

    abstract::Ten years after the ISPO consensus conference on amputation surgery, a search of relevant publications in the Rehabilitation-prosthetics-literature over the years 1990-2000 was performed. The main key-words in this research were: "lower limb, amputation, human and rehabilitation". One hundred and four (104) articles w...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章,评审

    doi:10.1080/03093640108726563

    authors: Geertzen JH,Martina JD,Rietman HS

    更新日期:2001-04-01 00:00:00

  • The influence of orthosis stiffness on paraplegic ambulation and its implications for functional electrical stimulation (FES) walking systems.

    abstract::This study examines the evidence which supports the importance of maintaining relative abduction for effective reciprocal walking in high level paraplegic patients. In comparisons of orthoses, where this can only be achieved mechanically, those with higher lateral rigidity consistently showed greater levels of walking...

    journal_title:Prosthetics and orthotics international

    pub_type: 杂志文章

    doi:10.3109/03093649509080352

    authors: Stallard J,Major RE

    更新日期:1995-08-01 00:00:00