Less hip range of motion is associated with a greater alpha angle in people with longstanding hip and groin pain

Estberger, August; Pålsson, Anders; Kostogiannis, Ioannis; Ageberg, Eva

doi:10.1007/s00167-021-06733-2

Cited by 7 publications

(4 citation statements)

References 44 publications

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“…There were 55.8% of participants who had postoperative alpha angle measurements greater than 55° following arthroscopic hip surgery, indicating residual cam deformities. As greater alpha angle values are associated with reduced internal and external rotation with hip flexion and hip abduction, 22 the reduction in alpha angle measurement following arthroscopic hip surgery may indicate an improvement in participants' range of motion.…”

Section: Discussionmentioning

confidence: 99%

Do patients with femoroacetabular impingement syndrome who undergo hip arthroscopy display improved alpha angle (magnetic resonance imaging) and radiographic hip morphology?

et al. 2022

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Aims: To compare (a) the change in radiological bony morphology between participants with femoroacetabular impingement (FAI) syndrome who underwent arthroscopic hip surgery compared to physiotherapist-led non-surgical care and (b) the change in radiological bony morphology between participants with FAI syndrome who underwent arthroscopic hip surgery involving cam resection or acetabular rim trimming or combined cam resection and acetabular rim trimming.Methods: Maximum alpha angle measurements on magnetic resonance imaging and Hip 2 Norm standardized hip measurements on radiographs were recorded at baseline and at 12 months postoperatively. One-way analysis of covariance and independent T tests were conducted between participants who underwent arthroscopic hip surgery and physiotherapist-led non-surgical care. Independent T tests and analysis of variance were conducted between participants who underwent the 3 different arthroscopic hip procedures.

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Section: Discussionmentioning

confidence: 99%

Do patients with femoroacetabular impingement syndrome who undergo hip arthroscopy display improved alpha angle (magnetic resonance imaging) and radiographic hip morphology?

et al. 2022

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“…Individuals with anterior hip pain detected by the FADIR test often show limited hip internal rotation with the hip flexed to 90° [ 7 – 10 ]. In general, hip internal rotation restriction factors are considered to comprise hip posterior structures, such as the external rotator muscles and posterior joint capsule (ischiofemoral ligament) [ 11 – 13 ].…”

Section: Introductionmentioning

confidence: 99%

In vivo interrelationships between the gluteus minimus and hip joint capsule in the hip internal rotation position with flexion

Tsutsumi,

Saiki,

Yamaguchi

et al. 2024

BMC Musculoskelet Disord

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Background The flexion adduction internal rotation (FADIR) test is performed by the combined motions of hip flexion (with knee flexion), adduction, and internal rotation, and can often reproduce anterior hip pain consistent with an individual’s presenting pain. Since it has high sensitivity for intraarticular pathology diagnosis but low specificity, understanding the extraarticular pathology that can induce anterior hip pain in the FADIR test may also be essential. This study hypothesized that the interrelationships between the joint capsule and gluteus minimus differ in individuals with and without FADIR-positive pain and aimed to elucidate the in vivo interrelationships at hip internal rotation in 90°-flexion, which is also often restricted in individuals with FADIR-positive pain. Methods Ten hips were included in the FADIR-positive group, and ten hips without hip pain in the FADIR test were included in a control group. Based on the ultrasound images at the four hip rotation conditions (20° and 10° external rotations, 0° external/internal rotation, and 10° internal rotation), orientation measurements of the gluteus minimus (muscle belly portion) and joint capsule were performed and quantitatively compared between the FADIR-positive and control groups. Additionally, 3 hips of 3 participants were randomly selected from each of the control and FADIR-positive groups for magnetic resonance imaging analysis. Results At 0°-external/internal and 10°-internal rotation, on ultrasound images, fibers of the gluteus minimus and joint capsule in the FADIR-positive group were significantly more oriented in the same direction than those in the control group. Magnetic resonance imaging showed that the loose connective tissue between the gluteus minimus and joint capsule was prominent at 10°-internal rotation in the control group, although this was not apparent in the FADIR-positive group. Conclusions At hip internal rotation in 90° flexion, the muscular belly portion of the gluteus minimus and joint capsule were oriented in the same direction to a greater extent in the FADIR-positive group than in the control group owing to a morphological change in the loose connective tissue between them. The pathological changes in the loose connective tissue may inhibit smooth movement of the gluteus minimus relative to the joint capsule in individuals with FADIR-positive pain.

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“…Younger, physically active individuals often report hip and groin pain, which can significantly diminish their quality of life and restrict participation in daily activities (3). This issue is particularly pronounced in women over 50, who frequently experience pain and tenderness in the groin, greater trochanter, and gluteal region, often accompanied by morning stiffness and internal hip rotation, especially in cases of chronic low back pain (4,5). Prolonged standing not only diminishes blood flow to the legs but also subjects isolated muscles to continuous exertion, leading to fatigue, pain, swelling, and discomfort in various body parts.…”

Section: Introductionmentioning

confidence: 99%

Frequency of Musculoskeletal Hip Pain among Dentists with Prolong Standing Hours

Haider,

Habib,

Shah

et al. 2023

JHRR

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Background: Musculoskeletal disorders, particularly hip pain, are a notable concern among healthcare professionals, with dentists being significantly affected due to prolonged standing hours. Previous studies have highlighted varying prevalence rates and risk factors, but comprehensive research specifically targeting dentists is limited. Objective: This study aimed to determine the frequency of musculoskeletal hip pain among dentists and to identify any correlating factors, with a focus on the impact of prolonged standing hours in the dental profession. Methods: An observational cross-sectional study was conducted involving 250 dentists aged between 20 to 50 years. The sample size was calculated using Epitool software, with a confidence level of 95%, anticipated population proportion of 0.70, and absolute precision of 0.05. Participants were selected using a non-probability consecutive sampling technique. The Hip Dysfunction and Osteoarthritis Outcome Score (HOOS) questionnaire was utilized to assess hip pain. Data analysis was performed using the Statistical Package for Social Sciences (SPSS) version 22.0, focusing on descriptive statistics and employing pie charts, bar charts, and histograms for data representation. Results: The study found that 58.0% of participants were at a higher risk for developing moderate hip pain. Females were more susceptible to hip pain than males, with 54.0% of the sample being female. The average age of participants was 36.78 years (SD = 11.6). Regarding hip pain on different surfaces: on hard surfaces, 3.2% reported no pain, 19.6% mild, 45.2% moderate, 26.8% severe, and 5.2% extreme pain; on uneven surfaces, these figures were 1.2%, 15.6%, 51.6%, 27.2%, and 4.4% respectively. Conclusion: The study concludes a significant prevalence of moderate musculoskeletal hip pain among dentists, predominantly attributed to prolonged standing hours. The higher incidence of hip pain in female dentists suggests a need for targeted occupational health strategies in dentistry. The study underscores the importance of ergonomic interventions and workplace modifications to mitigate the risk of musculoskeletal disorders.

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Less hip range of motion is associated with a greater alpha angle in people with longstanding hip and groin pain

Cited by 7 publications

References 44 publications

Do patients with femoroacetabular impingement syndrome who undergo hip arthroscopy display improved alpha angle (magnetic resonance imaging) and radiographic hip morphology?

Do patients with femoroacetabular impingement syndrome who undergo hip arthroscopy display improved alpha angle (magnetic resonance imaging) and radiographic hip morphology?

In vivo interrelationships between the gluteus minimus and hip joint capsule in the hip internal rotation position with flexion

Frequency of Musculoskeletal Hip Pain among Dentists with Prolong Standing Hours

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