Open Versus Arthroscopic Release for Lateral Patellar Compression Syndrome: Comparative Study

Hawler Medical University

Status: Completed

Conditions: Knee Arthroscopy

Treatments: Procedure: open release

Study type: Interventional

Funder types: Other

Identifiers

NCT04130412

HMU/Sherwan5

Details and patient eligibility

About

Chronic anterior knee pain with a stable patella is often associated with overload and increased pressure on the lateral facet due to pathologic lateral soft-tissue restraints. "Lateral pressure in flexion" is a term describing the pathologic process of increasing contact pressure over the lateral patellar facet as knee flexion progresses. Eighty patients were involved in this study, and it was divided into 2 random groups; Group A (40 patients)(odd number) were treated with open release after diagnostic arthroscopy and Group B (40 patients)(even number) were treated by arthroscopic release. All these patients are diagnosed as lateral patellar compression syndrome depending on clinical features, MRI and diagnostic arthroscopy. All patients were followed by Lysholm knee scaling score before surgery and two weeks , six weeks then 6 months after surgery.

Full description

This study was done by two orthopedic surgeons working in three hospitals from March 2016 to April 2018, Eighty patients were involved in this study, and it was divided into 2 matched groups; Group A (40 patients) were treated with open release after diagnostic arthroscopy and Group B (40 patients) were treated by arthroscopic release. All these patients are diagnosed as lateral patellar compression syndrome depending on clinical features, MRI ( figure 1)and diagnostic arthroscopy. All patients were followed by Lysol knee scaling score before surgery , two weeks , six weeks then 6 months after surgery. The two groups are matched related to age and gender. 52 patients are females and age ranged from 21-48 years.

Exclusion criteria are 1. Smoking 2.Patellar instability 3. D.M 4. Knee osteoarthritis 5. Previous knee surgery 6. Knee deformities involving Varus , valgus or recurvatum 7. Ligament laxity

Enrollment: 80 patients

Sex: All

Ages: 25 to 46 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• All these patients are diagnosed as lateral patellar compression syndrome depending on clinical features, MRI and diagnostic arthroscopy.

Exclusion criteria

1. Smoking

2. Patellar instability

3. D.M 4. Knee osteoarthritis

4. Previous knee surgery 6. Knee deformities involving Varus , valgus or recurvatum 7. Ligament laxity

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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80 participants in 2 patient groups

Open release of lateral retinaculae

Active Comparator group

Description:

This group was treated by open release of lateral retinaculae after diagnosis of lateral compression syndrome by arthroscopy

Treatment:

Procedure: open release

Arthroscopic release of lateral retinaculae

Active Comparator group

Description:

This group was treated by arthroscopic release

Treatment:

Procedure: open release