NCT04521842

Brief Summary

Total hip replacement (THR) is being considered as one of the most effective medical procedures. Since its introduction, there was a worldwide debate over proper implant selection in terms of size, bearing type and shape. The diameter of used femoral heads components grew throughout the years - from 22 mm in the 1960s to 32 mm in the 2000s, which is the most commonly used size nowadays. In recent years there was a visible use of large femoral heads (\>=36mm) in several registers. In the USA there was a significant grow in use of this heads rising from 1% in early 200s to even 58% in 2009. There is a strong evidence data and many researchers concerning range of movement, risk of dislocation, functional results, pain and prosthesis wear depending of femoral head size. In terms of gait characteristics there are several deviations reported concerning both patients with hip osteoarthritis (OA) and following THR. There is a lack of literature concerning influence of used implants on gait parameters and whether this goal of the surgery can be achieved. The aim of this study was to assess potential differences of lower limb biomechanics during gait in patients following total hip replacement surgery depending on femoral head diameter and compare them to the normal gait of healthy volunteers. As a secondary outcome authors wanted to inspect correlation between gait parameters and patient-reported outcome.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
30

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jan 2016

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2016

Completed
4.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2020

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

August 10, 2020

Completed
11 days until next milestone

First Posted

Study publicly available on registry

August 21, 2020

Completed
11 days until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2020

Completed
Last Updated

October 14, 2021

Status Verified

July 1, 2020

Enrollment Period

4.5 years

First QC Date

August 10, 2020

Last Update Submit

October 5, 2021

Conditions

Keywords

osteoarthritishipgaitwalkbiomechanics

Outcome Measures

Primary Outcomes (8)

  • Time of swing phase

    Change from baseline part of swing phase time during gait, measured in percentage

    at least 3,5 years after surgery

  • Time of stance phase

    Change from baseline part of stance phase time during gait, measured in percentage

    at least 3,5 years after surgery

  • Time of double-stance phase

    Change from baseline part of double-stance phase time during gait, measured in percentage

    at least 3,5 years after surgery

  • Stride length

    Change from baseline length of stride during gait, measured in meters

    at least 3,5 years after surgery

  • Cadence

    Change from baseline number of strides per minute of walking

    at least 3,5 years after surgery

  • Mean gait velocity

    Change from baseline mean values of gait speed, measured in meters per second

    at least 3,5 years after surgery

  • Range of maximal hip extension for both limbs during ending part of mid-stance phase

    Change from baseline range of maximal hip extension for both limbs during ending part of mid-stance phase, measured in degrees

    at least 3,5 years after surgery

  • Range of pelvic drop in frontal plane on the opposite site of the bearing limb

    Change from baseline range of pelvic drop in frontal plane on the opposite site of the bearing limb, measured in degrees

    at least 3,5 years after surgery

Study Arms (2)

Standard size femoral head implant

PLACEBO COMPARATOR

Participants qualified to undergo total hip replacement who will receive standard femoral head size implant

Procedure: Total hip replacement

Large size femoral head

ACTIVE COMPARATOR

Participants qualified to undergo total hip replacement who will receive large femoral head size implant

Procedure: Total hip replacement

Interventions

Total hip replacement in treatment of end-stage osteoarthritis

Large size femoral headStandard size femoral head implant

Eligibility Criteria

Age60 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • BMI \<35
  • Ability to walk for 10 meters
  • years of age
  • Bilateral THR

You may not qualify if:

  • Revision surgeries before and after THR
  • Any other lower limbs surgeries
  • Secondary OA
  • Neurological disorders
  • Cardiac disorders
  • Severly impaired balance
  • Severe dizziness

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Othopedics and Rehabilitation, Medical University of Warsaw

Warsaw, Poland

Location

MeSH Terms

Conditions

Osteoarthritis, HipGait Disorders, NeurologicOsteoarthritis

Interventions

Arthroplasty, Replacement, Hip

Condition Hierarchy (Ancestors)

ArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic DiseasesNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Arthroplasty, ReplacementArthroplastyOrthopedic ProceduresSurgical Procedures, OperativePlastic Surgery ProceduresProsthesis Implantation

Study Officials

  • Bartosz M. Maciąg, MD

    Medical University of Warsaw

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Patients qualified to undergo total hip arthroplasty due to the end-stage osteoarthritis will be randomly allocated to receive either standard femoral head size implants nor large ones. Pre- and postoperatively they will undergo gait analysis. To avoid risk of bias assessor will be blinded in terms of used implants in every participants case.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 10, 2020

First Posted

August 21, 2020

Study Start

January 1, 2016

Primary Completion

July 1, 2020

Study Completion

September 1, 2020

Last Updated

October 14, 2021

Record last verified: 2020-07

Data Sharing

IPD Sharing
Will share

The datasets used and/or analyzed during the current study will be available from the corresponding author on reasonable request.

Shared Documents
SAP
Time Frame
The datasets used and/or analyzed during the current study will be available from the corresponding author on reasonable request.
Access Criteria
The datasets used and/or analyzed during the current study will be available from the corresponding author on reasonable request.

Locations