NCT06988930

Brief Summary

One hundred patients with lateral patellar compression syndrome (LPCS) were recruited and divided into two groups: arthroscopic treatment group and rehabilitation conservative treatment group. A 2-year prospective cohort study was then conducted. The subjective scores of 5 scales and 3 objective indexes were used to evaluate the recovery of knee joint function after different treatment methods, and to further clarify the medium and long-term therapeutic effects of different treatment methods on LPCS patients.

Trial Health

75
On Track

Trial Health Score

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

Enrollment
100

participants targeted

Target at P50-P75 for not_applicable

Timeline
8mo left

Started Mar 2024

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
enrolling by invitation

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 Progress79%
Mar 2024Dec 2026

Study Start

First participant enrolled

March 1, 2024

Completed
1.1 years until next milestone

First Submitted

Initial submission to the registry

April 7, 2025

Completed
2 months until next milestone

First Posted

Study publicly available on registry

May 25, 2025

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Last Updated

May 25, 2025

Status Verified

April 1, 2025

Enrollment Period

2.8 years

First QC Date

April 7, 2025

Last Update Submit

May 22, 2025

Conditions

Keywords

lateral patellar compression syndromelateral retinacular release of the patellapatellofemoral joint rehabilitationprospective cohort studykinesitherapy

Outcome Measures

Primary Outcomes (1)

  • Patellar axial X-ray

    The degree of deviation of the patella was evaluated mainly by X-ray measurement

    Before the intervention、3 months after the intervention and 1 year after the intervention

Secondary Outcomes (3)

  • Visual Analogue Score

    Before the intervention、3 months after the intervention and 1 year after the intervention

  • Kujala score

    Before the intervention、3 months after the intervention and 1 year after the intervention

  • Lysholm knee score scale

    Before the intervention、3 months after the intervention and 1 year after the intervention

Study Arms (2)

Experimental group:arthroscopic surgery

EXPERIMENTAL

The patients with lateral patellar extrusion were treated with arthroscopic minimally invasive surgery.

Diagnostic Test: Control group

Conservative rehabilitation training group

ACTIVE COMPARATOR

The patients in this group were treated with exercise therapy

Diagnostic Test: Control group

Interventions

Control groupDIAGNOSTIC_TEST

The non-operation group was treated with rehabilitation therapy for 6 weeks, and the operation group was treated with arthroscopic surgery and the pathological tissue of cartilage and subchondral bone was taken. Assessment was performed at three months, one year, and two years after treatment and recorded in the database.

Conservative rehabilitation training groupExperimental group:arthroscopic surgery

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • ① Meet the diagnostic criteria of LPCS; ② Complete imaging data; ③ agree that the follow-up time should be at least 1 Years; ④ Those who are willing to conduct regular rehabilitation training can cooperate to complete the experiment by signing the informed consent.

You may not qualify if:

  • ① Complicated with severe heart, brain, kidney and other organ dysfunction;② Combined with patellar instability, patellar dislocation or others Severe knee joint disease and injury; ③ The previous history of joint infection, joint tuberculosis or osteomyelitis, or the lower extremity in 6 A history of surgery within the last month and previous knee surgery; ④ Infection, cancer, pregnancy and mental disorders Those with special conditions. ⑤ patients with mental illness or cognitive impairment, unable to study and participate in rehabilitation training; ⑥ not Informed consent was obtained.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Peking University Third Hospital

Beijing, China

Location

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 7, 2025

First Posted

May 25, 2025

Study Start

March 1, 2024

Primary Completion (Estimated)

December 31, 2026

Study Completion (Estimated)

December 31, 2026

Last Updated

May 25, 2025

Record last verified: 2025-04

Data Sharing

IPD Sharing
Will share

Locations