Prospective Clinical Study of Excessive Lateral Pressure Syndrome

NCT ID: NCT04983992

Last Updated: 2021-07-30

Basic Information

• Recruitment Status: UNKNOWN
• Total Enrollment: 200 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2021-09-01
• Study Completion Date: 2024-07-01

Brief Summary

The study of July 2021 to July 2022 to undergraduate course to see a doctor and accept the lateral retinaculum capsule of external release the prospectie study of 100 patients with follow-up, compared with preoperative and postoperative imaging data, clinical manifestations, signs, etc., to evaluate the surgical effect, at the same time of resection specimens for pathology and genetics research,To investigate the pathogenesis of lateral patella compression syndrome.

Detailed Description

Excessive Lateral Pressure Syndrome (ELPS) is a series of clinical symptoms caused by various factors, such as patella tilt, adaptive contraction of the Lateral retinaculum and unbalanced Pressure on the medial and Lateral joint surfaces of the patellofemoral. The concept was first proposed by Ficat in 1977. Patellofemoral pain syndrome has long been lumped together as widespread pregenitual pain and Patella malalignment syndrome as Patellofemoral pain due to poor Patella alignment.Kramer et al. found that the main cause of patellofemoral pain and increased pressure on the lateral patellofemoral surface was excessive pressure on the lateral retinol. Later, this view was accepted by more scholars, and lateral patellofemoral compression syndrome was gradually regarded as an independent syndrome and more studies were conducted.

In patients with lateral patella compression syndrome, early manifestations are usually pain in the soft tissues around the patella. Fulkerson et al. in 1985 found pathological changes in the nerve fibers in the lateral retinaculum through a pathological study, which is the basis for early lesions showing only pain in the soft tissues around the patella.As the disease progresses, uneven pressure on the medial and lateral facets of the patellofemoral joint will gradually lead to damage of the medial and lateral facets of the articular cartilage, eventually leading to irreversible damage of the articular cartilage and osteoarthritis.

The surgical treatment of lateral compression syndrome is varied, and in recent years, the most commonly used surgical methods include: incision lysis, percutaneous lysis, arthroscope-assisted percutaneous lysis, arthroscopic release, etc.These traditional surgical methods all have obvious complications, such as intraarticular dislocation of patella, recurrence of lateral compression due to postoperative adhesion of the support band, patellofemoral joint instability, intraarticular hematoma, etc.Although there are many surgical treatment methods for lateral compression syndrome, there is still no recognized standard treatment. Due to the fact that its effect and evaluation criteria cannot be unified, accurate horizontal comparison cannot be made among different regions and different populations.

Made by the researchers of the lateral retinaculum extracapsular release, at the same time in the release of the lateral retinaculum complete retaining articular capsule and lateral patellofemoral ligament, this procedure can obviously improve patellofemoral joint trajectory anomalies and significantly reduce joint surface pressure, at the same time reduce the surgical trauma, try to keep the original structure, can greatly reduce the postoperative complications of patellofemoral joint.

Studied in this paper in March 2021 to March 2022 to undergraduate course to see a doctor and accept the lateral retinaculum capsule of external release the prospective study of 100 patients with follow-up, compared with preoperative and postoperative imaging data, clinical manifestations, signs, etc., to evaluate the surgical effect, at the same time of resection specimens for pathology and genetics research,To investigate the pathogenesis of lateral patella compression syndrome.

Through this study, to explore the etiology, development and outcome of the disease, is helpful for the early diagnosis and treatment of the disease, avoid the irreversible injury of the patient's knee joint, greatly improve the quality of life of patients, reduce the incidence of knee replacement, and save medical resources.At the same time, the external capsule release of the lateral retinacular joint created by the present study will have a profound impact on the surgical treatment of the lateral retinacular joint.

Conditions

Excessive Lateral Pressure Syndrome

Keywords

excessive lateral pressure syndrome; patellofemoral joint; tibiofemoral joint

Study Design

• Observational Model Type: CASE_CONTROL
• Study Time Perspective: PROSPECTIVE

Study Groups

observation group

People suffered from excessive lateral pressure syndrome with extracapsular release of lateral retinaculum.

extracapsular release of lateral retinaculum

Intervention Type: PROCEDURE

A new kind of surgery releases the lateral retinaculum from outside the knee capsular, maintaining the structure of the knee capsular.

control group

People suffered from excessive lateral pressure syndrome with conservative treatment

No interventions assigned to this group

Interventions

extracapsular release of lateral retinaculum

A new kind of surgery releases the lateral retinaculum from outside the knee capsular, maintaining the structure of the knee capsular.

Intervention Type: PROCEDURE

Eligibility Criteria

Inclusion Criteria

1. Age <40.

2. Normal strength line of lower limbs: no valgus or varus feet (HKA <±5°)

Exclusion Criteria

1. Combined patella dislocation and medial retinacular injury.

2. Have a history of knee surgery, knee injury and fracture.

3. Complicated cruciate ligament injury and medial and lateral collateral ligament injury.

4. Combined knee osteoarthritis.

5. Complicated with rheumatism, rheumatoid arthritis and other types of arthritis

6. Patellar bisection, trochlear dysplasia

7. Gouty arthritis and hyperuricemia of the knee

8. Complicated meniscus injury of degree III or above

9. Incorporating lateral discoid meniscus

• Minimum Eligible Age: 10 Years
• Maximum Eligible Age: 40 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Weihai Wendeng District Central Hospital

UNKNOWN

Sponsor Role: collaborator

Inner Mongolia Autonomous Region Hospital

UNKNOWN

Sponsor Role: collaborator

Beijing Delconi Orthopaedic Hospital

UNKNOWN

Sponsor Role: collaborator

Peking University Third Hospital

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Other Identifiers

M2020527

Identifier Type: -

Identifier Source: org_study_id