Robotic Arm-assisted THA Vs. Conventional THA in Legg-Calvé-Perthes Disease

NCT ID: NCT07122323

Last Updated: 2025-08-14

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ENROLLING_BY_INVITATION

Clinical Phase

NA

Total Enrollment

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-07-28

Study Completion Date

2027-07-28

Brief Summary

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Flat hip, also called Legg-Calvé-Perthes disease, is clinically characterized by flattened femoral head, shortened femoral neck, and a center of rotation of the femoral head lower than the apex of the greater trochanter. Joint replacement is difficult, with high intraoperative and postoperative complications. Especially, issues such as unequal limb length, postoperative dislocation, postoperative neurological damage, and prosthesis impact have always plagued clinical practice.

The robotic arm-assisted joint replacement technology has been developed and clinically applied for over 10 years, but it was not until the past 3 years that it began to be widely implemented worldwide. Existing research data indicates that robotic arm-assisted joint replacement technology can significantly improve the placement of prostheses and lower limb force lines in patients, and improve their short-term clinical prognosis. However, its application in complex hips, such as flat hip, is limited. More relevant literature is needed to further enrich people's understanding of this technology. In theory, robot assisted technology can solve many challenges faced in flat hip replacement.

Detailed Description

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Conditions

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Legg-Calvé-Perthes Disease

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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conventional total hip replacement

applying conventional total hip replacement in patients with Legg-Calvé-Perthes disease

Group Type ACTIVE_COMPARATOR

conventional total hip replacement

Intervention Type PROCEDURE

applying conventional total hip replacement in patients with Legg-Calvé-Perthes disease

robotic arm-assisted total hip replacement

applying robotic arm-assisted total hip replacement in patients with Legg-Calvé-Perthes disease

Group Type EXPERIMENTAL

robotic arm-assisted total hip replacement

Intervention Type PROCEDURE

using robotic total hip replacement in patients with Legg-Calvé-Perthes disease

Interventions

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robotic arm-assisted total hip replacement

using robotic total hip replacement in patients with Legg-Calvé-Perthes disease

Intervention Type PROCEDURE

conventional total hip replacement

applying conventional total hip replacement in patients with Legg-Calvé-Perthes disease

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* patients with Legg-Calvé-Perthes disease and accept total hip replacement in our center

Exclusion Criteria

* infection, cannot complete follow-up
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Second Affiliated Hospital, School of Medicine, Zhejiang University

OTHER

Sponsor Role lead

Responsible Party

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Xiang Zhao, MD

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Second Affiliated Hospital of Zhejiang University School of Medicine

Hangzhou, Zhejiang, China

Site Status

Countries

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China

Other Identifiers

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2025-1100

Identifier Type: -

Identifier Source: org_study_id

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