Ischiofemoral impingement

The study aimed to investigate how hip bone and muscular morphology features differ between ischiofemoral impingement (IFI) patients and healthy subjects among males and females. Three-dimensional models were reconstructed based on magnetic resonance imaging images from IFI patients and healthy subjects of different sexes. Bone morphological parameters and the cross-sectional area of the hip abductors were measured. The diameter and angle of the pelvis were compared between patients and healthy subjects. Bone parameters of the hip and cross-sectional area of the hip abductors were compared between affected and healthy hips...

PURPOSE: To identify and evaluate techniques used for postless hip arthroscopy. METHODS: A narrative review was performed using Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines to identify surgical technique articles or clinical studies describing techniques for the use of postless hip arthroscopy. Specific items sought for analysis included hip arthroscopy for femoroacetabular impingement including cam or pincer-type lesions, surgical time, traction time, traction force, bed Trendelenburg angle, intraoperative techniques, and postoperative outcomes, including complications...

BACKGROUND: Pelvi-femoral conflicts are increasingly recognized for their explanatory role in the pathology of extra-articular hip impingement. Ischiofemoral impingement (IFI) is a type of impingement between the femur and the ischium that causes high femoral antetorsion and valgus femoral neck orientation. It is unknown whether obstetric adaptation of the female pelvis renders the female hip at a higher risk of sustaining IFI. The aim of this study was to determine the influence of the pelvic morphology on the ischiofemoral space (IFS)...

BACKGROUND: Posterior femoroacetabular impingement (FAI) is poorly understood. Patients with increased femoral anteversion (FV) exhibit posterior hip pain. PURPOSE: To correlate hip impingement area with FV and with combined version and to investigate frequency of limited external rotation (ER) and hip extension (<40°, <20°, and <0°) due to posterior extra-articular ischiofemoral impingement. STUDY DESIGN: Cross-sectional study; Level of evidence, 3...

Purpose: To use a novel in vivo method to simulate a moving hip model. Then, measure the dynamic bone-to-bone distance, and analyze the ischiofemoral space (IFS) of patients diagnosed with ischiofemoral impingement syndrome (IFI) during dynamic activities. Methods: Nine healthy subjects and 9 patients with IFI were recruited to collect MRI images and motion capture data. The motion trail of the hip during motion capture was matched to a personalized 3D hip model reconstructed from MRI images to get a dynamic bone model...

Ischiofemoral impingement syndrome is a neglected cause of posterior hip pain which is derived from narrowing of the space between the lateral aspect of the ischium and the medial aspect of the lesser trochanter. Its diagnosis is challenging and requires the combination of physical tests and imaging studies. In the present narrative review, we found that femoral anteversion predisposes patients to the narrowing of the ischiofemoral space and subsequent quadratus femoris muscle injury. Magnetic resonance imaging serves as the gold-standard diagnostic tool, which facilities the quantification of the ischiofemoral distance and the recognition of edema/fat infiltration/tearing of the quadratus femoris muscle...

OBJECTIVE: In this technical report, we describe our protocol for the dynamic sonographic evaluation of the hip and assess reliability of the ultrasound assessment of hip microinstability. MATERIALS AND METHODS: Our clinical experience with a standardized dynamic ultrasound of the hip performed in a series of 27 patients with imaging performed by an experienced musculoskeletal radiologist during physical examination by an orthopedic surgeon specializing in hip preservation is illustrated with clinical photographs and ultrasound images from volunteers and selected patients...

OBJECTIVE: To assess the prevalence and clinical relevance of quadratus femoris muscle edema (QFME) in pediatric pelvic MRI. MATERIALS AND METHODS: The axial T2-W with fat saturation sequence of pelvic/hip MRI examinations of pediatric patients (≤ 18 years) and a control group of young adults aged 19-45 years was retrospectively and independently evaluated by two musculoskeletal radiologists for the presence of QFME in each hip. Demographics, indication for imaging studies, and pain location were documented...

Ischiofemoral impingement is a distinct pathologic finding with abnormal osseous contact between the ischium and the lesser trochanter of the femur. Lesser trochanter excision has been recommended for recalcitrant ischiofemoral impingement through an open or endoscopic approach; however, no study has included ischial tuberosity osteophyte resection and refixation of the hamstring tendon. We report an endoscopic procedure involving ischial tuberosity osteophyte resection with refixation of the partially detached hamstring insertion through a posterior approach in the prone position...

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The human pelvis represents a wonderful example of apparent idealistic simplicity overwhelmed by realistic complexity. Traditionally, the pelvis has been termed a "ring" linking the lower extremity to the spine via the sacroiliac joint. In essence, the pelvis is the lowest vertebral level-"the hip bone's connected to the spine bone." Thus, the law of parsimony seemingly applies in the diagnosis and management of both arthritic and nonarthritic hip and spine disorders in isolation or combination. However, an inverse Occam's razor is much more likely...

INTRODUCTION: The etiology of ischiofemoral impingement (IFI) syndrome, an unusual and uncommon form of hip pain, remains uncertain. Some patients demonstrate narrowing of the space between the ischial tuberosity and lesser trochanter from trauma or abnormal morphology of the quadratus femoris muscle. Combined clinical and imaging aid in the diagnosis. CASE REPORT: A 32-year-old female presented with a 3 years history of pain over the lower aspect of the right buttock, aggravated by movements of the right hip, and partially relieved with rest and medications...

Ischiofemoral impingement is a relatively rare cause of posterior hip pain associated with narrowing of the space between the lateral aspect of the ischium and the lesser trochanter. Symptoms typically consist of lower buttock, groin, and/or medial thigh pain, which is commonly exacerbated by adduction, extension, and external rotation of the hip. This condition can be treated nonoperatively in many circumstances; however, recalcitrant cases may require surgical intervention. Whereas described operative treatment options for this pathology range from endoscopic to open procedures, this Technical Note describes a safe and reliable technique for open ischiofemoral decompression with sciatic nerve neurolysis through a posterior approach for treatment of ischiofemoral impingement refractory to conservative treatment...

The association between hip and spine abnormalities is frequent, and limitation in hip extension has been linked with low back pain. The purpose of this study was to assess the radiographic osseous findings in nonarthritic hips of patients with hip pain, low back pain, and limited hip extension. Ninety patients (92 hips) were included in this study. Hip extension was tested in the contralateral decubitus position with the hip in neutral abduction/adduction and neutral rotation. In sequence, hip extension was tested by adding passive abduction, followed by internal/external rotation of the hip...

Peripheral neuropathies are a recognized complication of labor in the post-partum period. Herein, we describe an uncommon presentation of sciatic mononeuropathy due to ischiofemoral impingement during labor. A 29-year-old, gravida 4 para 2, female presented post-partum with acute left lower limb paresthesia and left foot drop, following spontaneous vaginal delivery of twins. Neurological examination demonstrated no activation of the left sciatic-innervated muscles and sensory loss in the same distribution. Electromyography (EMG) demonstrated an acute complete left sciatic mononeuropathy...

Hip-spine syndrome refers to concurrent hip and spine pathology with overlapping symptoms. Most of the literature has studied it in relation to total hip arthroplasty literature and has been shown to increase dislocation risk. Lumbar spine and pelvic mobility have been studied less frequently in relation to nonarthritic pathologic hip states. Understanding the biomechanical relationship between the lumbar spine, pelvis, and hip can help elucidate how hip-spine syndrome affects the nonarthritic hip and how it impacts outcomes of hip arthroscopy...

The hip can have a multitude of different pathologies leading to different symptoms. Greater trochanteric pain syndrome, historically attributed to bursitis, has been largely found to be associated with lesions of the gluteus medius and minimus tendons, and the prevalence of gluteus medius pathology in patients with femoroacetabular impingement (FAI) is as high as one-third of the FAI population. If a patient is found to have significant clinical symptoms of both FAI and a gluteus medius tear, it is imperative to fix both pathologies...

No abstract text is available yet for this article.

Introduction: Hip pain in children and adolescents may become a diagnostic challenge. A wide range of causes must be considered in the deferential diagnosis. Ischiofemoral impingement (IFI) is a pathological condition defined by hip pain associated with narrowing of the ischiofemoral (IF) space. We report the case of an adolescent patient with non-traumatic quadratus femoris (QF) tear secondary to an occult IFI syndrome. To the best of our knowledge, this is the first such case reported in the literature...

BACKGROUND: Any abnormal structures that contribute to the narrowing of the ischiofemoral space could induce ischiofemoral impingement. Bernese periacetabular osteotomy (PAO) medializes the hip center and, therefore, decreases contact stress on the cartilage in developmental dysplasia of the hip (DDH). However, medialization of the hip center might also narrow the ischiofemoral space, which may increase the risk of postoperative ischiofemoral impingement in patients with acetabular dysplasia who are undergoing PAO...