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Popliteus Muscle Release Versus Patellofemoral Mobilization in Patellofemoral Pain Syndrome (PFPS)

7. juli 2026 opdateret af: Mohamed Abdelalim Bahig, Cairo University
This study will be conducted to compare the effect of popliteus muscle release and patellofemoral mobilization on pain intensity, function, and quadriceps muscle strength in patients with patellofemoral pain syndrome?

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

The gradual development of diffuse anterior knee pain is characteristic of patellofemoral pain (PFP), which is made worse by activities that put stress on the patellofemoral joint, such as running, stair climbing, and squatting. While 23% of the overall population has PFP, athletes can have a prevalence of 35%.Patellofemoral pain syndrome (PFPS) is a widespread disease with a significant impact on society, with a 22.7% prevalence in the general population.The patella is the largest sesamoid bone in the body and acts as a fulcrum to improve the mechanical advantage of the quadriceps. In full knee extension the patella does not articulate with the femoral condyles, and related to the lack of articular congruency, is able to glide more freely. The inferior patellar facet first contacts the femoral condyle around 20-30o of knee flexion.The popliteus tendon is a primary stabilizer of external knee rotation and has been described as the "fifth ligament of the knee." Injuries involving the posterolateral corner of the knee commonly involve the popliteus tendon; isolated injury to the popliteus tendon is relatively rare and usually involves a rotatory injury mechanism and symptoms of instability and pain.Myofascial release has been shown to improve pain, range of motion, and functional outcomes in individuals with knee disorders. By targeting fascial restrictions around the quadriceps, hamstrings, iliotibial band, and peri-patellar tissues, myofascial techniques help reduce tissue stiffness and abnormal tension that may contribute to altered patellar tracking and joint loading.Patellofemoral mobilization is considered an important intervention in the management of PFPS, particularly in patients presenting with pain, stiffness, or altered patellar tracking.Although both techniques are used to reduce anterior knee pain and improve function, current evidence is insufficient to determine which intervention is more effective. Therefore, further randomized controlled trials are needed to compare their effects on pain and functional outcomes in individuals with PFPS.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

48

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

  • Male and female participants aged 18-30 years.
  • minimum history of 3 months of unilateral PFP.
  • pain intensity score of ≥3 on a 10-cm Visual Analog Scale (VAS) for worst pain experienced during the previous week.
  • Pain reproduced during at least two of the following functional activities: stair ascent or descent, running, hopping, prolonged sitting, squatting, or kneeling.
  • Presence of pain on at least one of the following clinical tests: patellar compression test or palpation of the patellar facets.

Exclusion Criteria:

  • Clinical, x-ray, or MRI findings indicative of other specific pathology including osteoarthritis, meniscal, ligament or cartilage injury, apophysitis.
  • Recurrent patellar subluxation or dislocation.
  • Cortisone use over an extended period of time.
  • Previous surgery to the knee joint; trauma to the knee joint affecting the presenting clinical condition.
  • Lower limb deformities.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Enkelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Popliteus Muscle Release
Sixteen patients with patellofemoral pain syndrome will receive popliteus muscle release. plus traditional physical therapy three times a week for 4 weeks.
Andet: Popliteus Muscle Release
the participant will lie supine and relaxed on a treatment bench. The therapist will begin the treatment by flexing the participant's knee to approximately 15-25 degrees. Then, the therapist will apply pressure to the popliteus muscle while simultaneously extending the knee to approximately 5 degrees of flexion. When the knee is extended, the pressure will be released. The therapist will repeat this procedure for up to 2 minutes plus tradional therapy
Andet: traditional therapy
patients will receive quadriceps muscle strength, hip extension strength, hamstring stretch.
Eksperimentel: Patellofemoral Mobilization
Sixteen patients with patellofemoral pain syndrome will receive patellofemoral mobilization plus traditional physical therapy three times a week for 4 weeks.
Andet: traditional therapy
patients will receive quadriceps muscle strength, hip extension strength, hamstring stretch.
Andet: Patellofemoral Mobilization
Following the clinical guidelines established by Brukner and Khan, the mobilization will be performed with the patient in a supine position to ensure complete relaxation of the quadriceps musculature, thereby minimizing joint compressive forces. The intervention will include multidirectional glides tailored to specific functional deficits:Superior glides,Inferior glides,Medial-lateral excursions and tilt mobilization.Each mobilization will be applied as a gentle sustained glide for duration of 30 to 60 seconds per repetition
Aktiv komparator: traditional therapy
Sixteen patients with patellofemoral pain syndrome will receive traditional physical therapy three times a week for 4 weeks.
Andet: traditional therapy
patients will receive quadriceps muscle strength, hip extension strength, hamstring stretch.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
pain intensity
Tidsramme: up to four weeks
The scale used will be the visual analogue scale (VAS), which consists of a line, usually 10 cm long, the patient will be instructed to place a vertical mark on to indicate his/ her pain, ranging from no pain or discomfort (0), to the worst pain that could possibly feel
up to four weeks

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
knee disability
Tidsramme: up to four weeks
The Kujala Arabic version will be used to assess knee disability. it is 13 items on the scale are used to assess subjective symptoms and functional restrictions. A score can have a minimum of 0 points or a maximum of 100 points.Lower scores reflect greater pain and disability
up to four weeks
quadriceps muscle strength
Tidsramme: up to four weeks
A handheld dynamometer will be used to assess quadrecips muscle strength
up to four weeks

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Cairo University

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

15. juli 2026

Primær færdiggørelse (Anslået)

1. november 2026

Studieafslutning (Anslået)

1. november 2026

Datoer for studieregistrering

Først indsendt

7. juli 2026

Først indsendt, der opfyldte QC-kriterier

7. juli 2026

Først opslået (Faktiske)

13. juli 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

13. juli 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

7. juli 2026

Sidst verificeret

1. juli 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • P.T.REC/012/006557

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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Kliniske forsøg med Patellofemoralt smertesyndrom

Kliniske forsøg med Popliteus Muscle Release

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Sponsorer og samarbejdspartnere

Medicinske tilstande

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CROs in Pakistan

Betingelser

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Placeringer

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