Comparison of Two Protocols for Patellofemoral Pain Syndrome

Phase 1

Completed

• Conditions: Patellofemoral Pain Syndrome
• Interventions: Other: Quadriceps Strengthening; Other: Stretching Hamstring

• Registration Number: NCT01691170
• Lead Sponsor: University of Sao Paulo

Brief Summary

The patellofemoral pain syndrome (PFPS) is defined as a painful complaint in the anterior aspect of the knee, although peripatellar pain and / or retropatellar are also common. In general, conservative treatment is the initial option of choice for patients with PFPS, however, the lack of a specific causal factor makes it difficult to choose the best treatment so early. This way, the purpose of this study is investigate the effects of the quadriceps femoris strengthening versus hamstring stretching in patients with pattellofemoral pain.

Detailed Description

Not available

Basic Information
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Recruitment & Eligibility
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Study & Design
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Trial Locations

Study Timeline

• Study Start: 2008-03
• Primary Completion: 2011-02
• Study Completion: 2011-09
• Status Verified: 2012-09
• Study First Submitted: 2012-09-16
• Study First Submitted QC: 2012-09-19
• Last Update Submitted: 2012-09-21
• Study First Posted: 2012-09-24
• Last Update Posted: 2012-09-25

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 20

Inclusion Criteria

• Symptoms of anterior knee pain for at least 1 moth;
• Average pain level of 3 or more on a 10-cm visual analogue scale during stepping up and down a 25-cm height;
• Anterior or retropatellar knee pain on at least 2 of the following activities: prolonged sitting, climbing stairs, squatting, running, kneeling, and hopping/jumping;
• Presence of 2 of the following clinical criteria on assessment: pain during apprehension test, pain during the patellar compression test, and crepitation during the compression test.

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Exclusion Criteria

• Previous knee surgery or arthritis;
• History of patellar dislocation or subluxation, malalignment, or ligament laxity;
• Patellar tendon pathology or chondral damage;
• Spinal referred pain;
• History of other abnormalities such as leg length inequalities (>2 cm);
• Medication as a part of the treatment;
• Previous physical therapy or acupuncture treatment for the knee within the previous 30 days.

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Quadriceps Strengthening	Quadriceps Strengthening	-
Stretching Hamstring	Stretching Hamstring	-

Primary Outcome Measures

Name	Time	Method
Numeric Pain Rating Scale	Participants will be followed for the duration of 8 weeks.	Pain was assessed using an 11-point numeric pain rating scale (NPRS), on which 0 denoted an absence of pain and 10 denoted unbearable pain.

Secondary Outcome Measures

Name	Time	Method
Lysholm Scale	Participants will be followed for the duration of 8 weeks.	This questionnaire is made up of eight items with objective response options. The final score is expressed in nominal and ordinal form, as follows: 95 to 100 points - excellent; 84 to 94 points - good; 65 to 83 points - fair; and 64 or fewer points - poor.

Trial Locations

Locations (1)

Physical Therapy, Speech and Occupational Therapy Department, University of São Paulo.; 🇧🇷 São Paulo, Brazil