Background: Previous studies have indicated that hip and pelvis kinematics may be altered during functional tasks in persons with femoroacetabular impingement. The purpose of this study was to compare hip and pelvis kinematics and kinetics during a deep squat task between persons with cam femoroacetabular impingement and pain-free controls.
Methods: Fifteen persons with cam femoroacetabular impingement and 15 persons without cam femoroacetabular impingement performed a deep squat task. Peak hip flexion, abduction, and internal rotation, and mean hip extensor, adductor, and external rotator moments were quantified. Independent t-tests (α<0.05) were used to evaluate between group differences.
Findings: Compared to the control group, persons with cam femoroacetabular impingement demonstrated decreased peak hip internal rotation (15.2° (SD 9.5°) vs. 9.4° (SD 7.8°); P=0.041) and decreased mean hip extensor moments (0.56 (SD 0.12) Nm/kg vs. 0.45 (SD 0.15) Nm/kg; P=0.018). In addition persons in the cam femoroacetabular impingement group demonstrated decreased posterior pelvis tilt during squat descent compared to the control group, resulting in a more anteriorly tilted pelvis at the time peak hip flexion (12.5° (SD 17.1°) vs. 23.0° (SD 12.4°); P=0.024).
Interpretation: The decreased hip internal rotation observed in persons with cam femoroacetabular impingement may be the result of bony impingement. Furthermore, the decrease in posterior pelvis tilt may contribute to impingement by further approximating the femoral head-neck junction with the acetabulum. Additionally, decreased hip extensor moments suggest that diminished hip extensor muscle activity may contribute to decreased posterior pelvis tilt.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.clinbiomech.2015.09.016 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Current understanding of articular cartilage lesions in femoroacetabular impingement syndrome.
J Orthop Surg Res
December 2024
Department of Joint and Sports Medicine, The First Affiliated Hospital of Dalian Medical University, No.193 Lianhe Road, Shahekou District, Dalian, 116021, China.
The concept of femoroacetabular impingement syndrome (FAIS) has received much attention over the past 20 years. Currently, it is believed that FAIS can lead to intra-articular pathologies such as labral tears and articular cartilage lesions, resulting in clinical symptoms and subsequent poor clinical outcomes. FAIS-related articular cartilage lesions are common but unique, and their natural course always leads to early osteoarthritis of the hip.
View Article and Find Full Text PDFNo Difference in 2-year Outcomes for Non-Hypermobile Femoroacetabular Impingement Syndrome Patients Undergoing Hip Arthroscopy with and without Closure of Periportal Capsulotomy.
Arthroscopy
December 2024
Department of Orthopedic Surgery, University of California San Francisco, San Francisco, CA, USA. Electronic address:
Purpose: To assess whether capsular closure during hip arthroscopy with periportal capsulotomy affects 2-year postoperative outcomes for femoroacetabular impingement syndrome (FAIS) patients without hypermobility.
Methods: A matched-cohort retrospective analysis of a single institutional database of patients who underwent hip arthroscopy with periportal capsulotomy for management of FAIS between 2014-2022 was performed. Study inclusion criteria consisted of FAIS patients who exhibited no signs of generalized ligamentous laxity (GLL) (Beighton score 0).
Femoroacetabular Impingement Morphological Changes in Sample of Patients Living in Southern Mexico Using Tomographic Angle Measures.
Tomography
December 2024
Hospital Regional de Alta Especialidad de la Peninsula de Yucatan, Servicios de Salud del IMSS-BIENESTAR, Merida 97130, Yucatan, Mexico.
Background: Femoroacetabular impingement (FAI) is a condition caused by abnormal contact between the femur head and the acetabulum, which damages the labrum and articular cartilage. While the prevalence and the type of impingement may vary across human groups, the variability among populations with short height or with a high prevalence of overweight has not yet been explored. Latin American studies have rarely been conducted in reference to this condition, including the Mayan and mestizo populations from the Yucatan Peninsula.
View Article and Find Full Text PDFChatGPT Can Often Respond Adequately to Common Patient Questions Regarding Femoroacetabular Impingement.
Clin J Sport Med
December 2024
Department of Orthopaedic Surgery, University Hospitals - Drusinsky Sports Medicine Institute, Case Western Reserve University, Cleveland, Ohio.
Objective: This study aims to analyze the ability of ChatGPT to answer frequently asked questions (FAQs) regarding FAI. We hypothesize that ChatGPT can provide accurate and thorough responses when presented with FAQs regarding FAI.
Design: Ten FAQs regarding FAI were presented to ChatGPT 3.
Paralabral cysts in the acetabulum often occur in the setting of labral tears. While labral tears are commonly identified in femoroacetabular impingement syndrome, developmental dysplasia of the hip is also a cause of chondrolabral pathology. Our understanding of paralabral cysts has encouraged addressing the concomitant labral pathology, as this has been shown to result in cyst resolution.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!