The Role of Referred Pain From the Retro Trochanteric Region in Patients With Knee Pain

NCT ID: NCT02560259

Last Updated: 2015-09-25

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-10-31

Study Completion Date

2017-08-31

Brief Summary

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The role of referred pain from the retro trochanteric region, in patients with knee pain. Defining and quantifying this sub group of knee patients in the investigators list of refered knee patients. Evaluating the effect of treatment. A randomized trial.

Detailed Description

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Knee pain is a great problem in the society. Besides obvious and known causes, for which there are increasing understanding and ways to treat, there is still a rather large group of patients in which the symptoms are not easily understood and harder to treat.

This group is often characterized by having symptoms ranging from months to years, having seen several physicians, gone through several x-rays/mri´s, and various treatment with no help.

The investigators find ever more suspicion towards specific mechanisms in the hip region as a source of knee pain. It is well known in pediatric medicine that children with serious disease in the hip often debut with knee pain. This relationship is not so well established in adults.

Pain in the lower extremity can arise from inflammation or strain of the retro trochanteric muscles, and/or more indirectly if these processes impact the sciatic nerve. The later explanation is commonly known as the piriformis syndrome.

Professor Oddmund Johansen has studied this type of pain extensively. In the later years he has found interest in patients with knee pain.

These patients will often have pain with deep palpation to the posterior hip region, when tightening the hip rotators with flexion and adduction, and they will often respond with pain relief, within minutes, when local anesthesia is placed on the distal attachment of the hip rotators on the posterior margin of the greater trochanter. Afterwards, lasting pain relief can be seen with a specified stretching regiment for these muscles.

The investigators will recruit suiting patients from a knee referral list. Inclusion will be based on clinical examination and whether they respond to the injection. After inclusion they will be scored with pain and quality of life forms, randomised in two groups, one with a stretching regime and one with conservative and symptomatic treatment.

There is interest in defining and quantifying this sub group of knee patients. They will be followed up after 3 months, with a new examination and scoring to evaluate the effect of the intervention.

The study will examine how the patients react and comply with the proposed diagnosis and treatment. A cost analysis will also be considered.

Conditions

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Referred Pain

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Physiotherapy Group

Physiotherapy

Group Type ACTIVE_COMPARATOR

Physiotherapy

Intervention Type OTHER

Physiotherapy

Conservative group

Conservative treatment

Group Type PLACEBO_COMPARATOR

Conservative treatment

Intervention Type OTHER

Conservative treatment

Interventions

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Physiotherapy

Physiotherapy

Intervention Type OTHER

Conservative treatment

Conservative treatment

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Knee pain
* Failure to understand the pain with more conventional diagnosis
* Symptoms and retrotrochanteric pain with examination
* Pain relief with retro trochanteric local anaesthetic injection

Exclusion Criteria

* Mental illness
* Failure to cooperate
* Not adequate Norwegian language skills
* Other well known disease explaining symptoms
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University Hospital of North Norway

OTHER

Sponsor Role lead

Responsible Party

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Oddmund Johansen

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Oddmund Johansen, Professor

Role: PRINCIPAL_INVESTIGATOR

University Hospital og North Nprway, ortopedic department

Locations

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University Hospital of Northern Norway

Tromsø, , Norway

Site Status

Countries

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Norway

Central Contacts

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Anders Hennig, Physician

Role: CONTACT

+4797650807

Oddmund Johansen, Professor

Role: CONTACT

Facility Contacts

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Anders Hennig, Physician

Role: primary

+4797650807

Oddmund Johansen, Professor

Role: backup

References

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Meknas K, Kartus J, Letto JI, Flaten M, Johansen O. A 5-year prospective study of non-surgical treatment of retro-trochanteric pain. Knee Surg Sports Traumatol Arthrosc. 2009 Aug;17(8):996-1002. doi: 10.1007/s00167-009-0750-z. Epub 2009 Mar 5.

Reference Type RESULT
PMID: 19263036 (View on PubMed)

Meknas K, Johansen O, Kartus J. Retro-trochanteric sciatica-like pain: current concept. Knee Surg Sports Traumatol Arthrosc. 2011 Nov;19(11):1971-85. doi: 10.1007/s00167-011-1573-2. Epub 2011 Jun 16.

Reference Type RESULT
PMID: 21678093 (View on PubMed)

Meknas K, Kartus J, Letto JI, Christensen A, Johansen O. Surgical release of the internal obturator tendon for the treatment of retro-trochanteric pain syndrome: a prospective randomized study, with long-term follow-up. Knee Surg Sports Traumatol Arthrosc. 2009 Oct;17(10):1249-56. doi: 10.1007/s00167-009-0787-z. Epub 2009 Apr 18.

Reference Type RESULT
PMID: 19396428 (View on PubMed)

Meknas K, Christensen A, Johansen O. The internal obturator muscle may cause sciatic pain. Pain. 2003 Jul;104(1-2):375-80. doi: 10.1016/s0304-3959(03)00045-9.

Reference Type RESULT
PMID: 12855348 (View on PubMed)

Other Identifiers

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2015/157(REK)

Identifier Type: -

Identifier Source: org_study_id

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