NCT05717413

Brief Summary

Relevance The first metatarsophalangeal joint (MPJ) has an important function in the biomechanics of human gait, especially in the toe and thrust phases, as the full range of motion at this joint provides the body with smooth horizontal acceleration. The flattening of the arches of the foot and, as a result, the overload of its anterior section occupy a leading place in the etiology of deforming osteoarthritis (Hallux rigidus). Hallux rigidus is a disease associated with degenerative changes in the articular cartilage of the first metatarsophalangeal joint. The relevance of the treatment of arthrosis of the first metatarsophalangeal joint is determined by the high incidence and functional significance of the joint. At the 3rd and 4th degrees of arthrosis, arthrodesis, resection arthroplasty and arthroplasty of the first metatarsophalangeal joint are used. To date, the most optimal methods of surgical treatment of severe arthrosis of the first metatarsophalangeal joint are arthroplasty and arthrodesis of the joint. These operations are preferred because they achieve good clinical and radiological results. Long-term follow-up studies are needed to confirm the current findings. Uncoupled endoprostheses are characterized by satisfactory mobility, the ability to withstand high loads, and ligament structures are preserved during their implantation. Of the existing types of non-bonded endoprostheses, zirconium ceramics has a number of advantages, such as: good ingrowth ability, no wear, no rejection reactions. The main advantages of this type of surgical treatment are: rapid pain relief, improved function and stability, individual adaptation of prostheses. Endoprosthetics is recommended for patients of working age with high functional demands. Thus, the development and implementation of new design solutions in clinical practice is relevant and promising. task in the surgical treatment of patients with deforming osteoarthritis of the first metatarsophalangeal joint. Purpose of the study: To develop and introduce into clinical practice a new method of surgical treatment of patients with deforming osteoarthrosis of the first metatarsophalangeal joint using an anatomically adapted endoprosthesis.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
46

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Sep 2022

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
unknown

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

September 1, 2022

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

January 28, 2023

Completed
11 days until next milestone

First Posted

Study publicly available on registry

February 8, 2023

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2025

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2025

Completed
Last Updated

April 23, 2024

Status Verified

December 1, 2023

Enrollment Period

2.8 years

First QC Date

January 28, 2023

Last Update Submit

April 22, 2024

Conditions

Keywords

modeling of critical loadsgeometric model of the footEndoprosthesis of 1 metatarsophalangeal joint

Outcome Measures

Primary Outcomes (1)

  • Dynamics of quality of life indicators using questionnaires

    AOFAS scale (American Orthopaedic Foot and Ankle Society Score). The results of treatment are evaluated as follows: excellent - 95-100 points; good - 75-94 points; satisfactory - 51-74 points; bad - 50 points or less.

    2 years

Secondary Outcomes (3)

  • clinical method

    2 years

  • X-ray method

    2 years

  • Plantography and podometry

    2 years

Study Arms (2)

Patients after arthroplasty of the 1st metatarsophalangeal joint

Device: metatarsophalangeal joint endoprosthesis

Patients after arthrodesis of the 1st metatarsophalangeal joint

Interventions

arthroplasty of 1 metatarsophalangeal joint

Patients after arthroplasty of the 1st metatarsophalangeal joint

Eligibility Criteria

Age52 Years - 69 Years
Sexall
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

The object of the study - patients aged 45 to 70 years. Clinical work will be carried out in the departments of traumatology and orthopedics of the Clinics of the Samara State Medical University, the trauma department of the State Clinical Hospital No. 1 named after N.I. Pirogov and the Department of Traumatology of CB "RZD-Medicine". Research work includes radiation, functional and clinical research methods. Patients will be divided the control and main groups. Both groups were comparable in terms of sex, age, duration of the disease. All data will be statistically processed according to evidence-based medicine. Comparison of functional outcomes will be conducted using the American Association of Foot and Ankle Orthopedics (AOFAS) Clinical Assessment Scale for Foot and Ankle Diseases.

You may qualify if:

  • idiopathic, post-traumatic and degenerative arthrosis of the first metatarsophalangeal joint
  • working age of patients

You may not qualify if:

  • purulent arthritis and osteomyelitis in the forefoot
  • severe osteoporosis
  • significant bone defect
  • trophic skin changes due to chronic vascular diseases

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Clinics of Samara State Medical University

Samara, 443079, Russia

RECRUITING

Related Links

MeSH Terms

Conditions

Osteoarthritis

Condition Hierarchy (Ancestors)

ArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic Diseases

Central Study Contacts

Gennady Kotelnikov, MD

CONTACT

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 28, 2023

First Posted

February 8, 2023

Study Start

September 1, 2022

Primary Completion

July 1, 2025

Study Completion

August 1, 2025

Last Updated

April 23, 2024

Record last verified: 2023-12

Locations