Comparison of Two Protocols for Patellofemoral Pain Syndrome

Patellofemoral Pain Syndrome Clinical Trial

— PFPS  

Official title:

Quadriceps Femoris Strengthening Versus Hamstring Stretching for Patellofemoral Pain Syndrome: A Randomized Clinical Trial.

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT01691170
• Other study ID #: USP01
• Status: Completed
• Phase: Phase 1/Phase 2
• First received: September 16, 2012
• Last updated: September 21, 2012
• Start date: March 2008
• Est. completion date: September 2011

Study information

• Verified date: September 2012
• Source: University of Sao Paulo
• Contact: n/a
• Is FDA regulated: No
• Health authority: Brazil: Ethics Committee
• Study type: Interventional

Clinical Trial 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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 20
• Est. completion date: September 2011
• Est. primary completion date: February 2011
• Accepts healthy volunteers: No
• Gender: Both
• Age group: 18 Years to 40 Years

Eligibility

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.

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.

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

• Patellofemoral Pain Syndrome
• Somatoform Disorders
• Syndrome

Intervention

Other:
• Stretching Hamstring

• Quadriceps Strengthening

Locations

Country	Name	City	State
Brazil	Physical Therapy, Speech and Occupational Therapy Department, University of São Paulo.	São Paulo

Sponsors (1)

Lead Sponsor	Collaborator
University of Sao Paulo

Country where clinical trial is conducted

Brazil, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Numeric Pain Rating Scale	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.	Participants will be followed for the duration of 8 weeks.	Yes
Secondary	Lysholm Scale	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.	Participants will be followed for the duration of 8 weeks.	Yes