Pelvic and Hip Morphometry in Piriformis Syndrome

Anthropometry Clinical Trial

Official title:

The Importance of Pelvic Morphometric Measurements in Piriformis Syndrome: A Case-control Study

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04600024
• Other study ID #: FSMEAH
• Status: Completed
• Start date: April 20, 2018
• Est. completion date: June 18, 2020

Study information

• Verified date: September 2020
• Source: Fatih Sultan Mehmet Training and Research Hospital
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

In this case-control study, 23 patients diagnosed as PS by diagnostic injection with ultrasound guidance were selected as the study group. 22 patients who were excluded from the diagnosis of PS and had anteroposterior (AP) direct radiographic imaging were evaluated as the control group. On the AP Pelvic graph, the femoral neck-shaft angle, the distances between predetermined bony landmarks were measured blindly without knowing the diagnosis, and the findings were compared statistically. This study aims to evaluate whether the anatomical structure of the pelvis predisposes to the etiopathogenesis of the piriformis syndrome.

Description:

Piriformis syndrome (PS) is a neuromuscular disorder consisting of pain and symptoms caused by compression of the sciatic nerve and other structures that pass under the piriformis muscle (PM). Due to difficulties in diagnosis, PS is confused with other pathologies such as lumbar disc pathology, lumbosacral radiculopathy, and sacroiliac dysfunction. As a result, patients are exposed to unnecessary and ineffective treatments, even surgery. The main problems in the PS diagnosis are the absence of objective physical examination findings, radiological findings, and a clear etiology. When the pathophysiology and etiology of PS are considered, there is no identifiable cause in most patients. Previous studies suggest that trauma, anatomical variations, and the trigger point in the muscle may cause PS. No study in the literature radiologically examined the pelvis or hip bone morphological features in PS to the best of our knowledge. This study aims to determine whether pelvic or hip bone morphology features pose a risk for PS in this study.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 45
• Est. completion date: June 18, 2020
• Est. primary completion date: March 18, 2020
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 65 Years

Eligibility

For Piriformis syndrome group (study group);

Inclusion Criteria:

• A dramatic relief of pain following piriformis muscle local anesthetic injection

Exclusion Criteria:

• Having a neurological deficiency
• Having lumbar, sacroiliac, hip, and thoracolumbar pathology (inflammatory or degenerative)
• Operation history at the lumbar and hip region
• Being in the gestational or lactational period
• Body mass index of greater than 35
• History of inflammatory or infectious disease
• Active psychiatric illness, severe systemic, vascular or malign disease For the control group Inclusion criteria: -Having Anteroposterior pelvic radiographs for other medical reasons

Exclusion criteria:

• Having a present piriformis syndrome or a history of piriformis syndrome
• Having a neurological deficiency
• Having lumbar, sacroiliac, hip, and thoracolumbar pathology (inflammatory or degenerative)
• Operation history at the lumbar and hip region
• Being in the gestational or lactational period
• Body mass index of greater than 35
• History of inflammatory or infectious disease
• Active psychiatric illness, severe systemic, vascular or malign disease

Related Conditions & MeSH terms

• Anthropometry
• Piriformis Muscle Syndrome
• Syndrome

Intervention

Diagnostic Test:
• Ultrasound guided diagnostic injection
4 cc lidocaine %2 injection into the piriformis muscle was performed for the diagnosis of piriformis syndrome. It was performed by the ultrasound-guidance to increase the accuracy of the injection.

Locations

Country	Name	City	State
Turkey	Fatih Sultan Mehmet Research and Traning Hospital	Istanbul

Sponsors (1)

Lead Sponsor	Collaborator
Fatih Sultan Mehmet Training and Research Hospital

Country where clinical trial is conducted

Turkey, 

References & Publications (26)

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* Note: There are 26 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Femoral Neck-Shaft Angle (NSA)	The NSA, also called caput collum-diaphyseal angle or inclination angle, defined as the angle between the longitudinal femoral shaft axis and femoral head-neck axis.	The measurement was evaluated by two different investigators immediately after the pelvis anteroposterior radiography was taken.
Primary	Posterior Superior Iliac Spine (PSIS)- Trochanter Major (TM)	The distance between the posterior superior iliac spine and the greater trochanter	The measurement was evaluated by two different investigators immediately after the pelvis anteroposterior radiography was taken.
Primary	PSIS-Ischial Tuberosity (IT)	The distance between the posterior superior iliac spine and the apex of the ischial tuberosity	The measurement was evaluated by two different investigators immediately after the pelvis anteroposterior radiography was taken.
Primary	IT-TM	The distance between the apex of the ischial tuberosity and the greater trochanter	The measurement was evaluated by two different investigators immediately after the pelvis anteroposterior radiography was taken.
Primary	Sacrum-TM	The distance between the sacrum and the greater trochanter	The measurement was evaluated by two different investigators immediately after the pelvis anteroposterior radiography was taken.