Abstract:Background Post-operative tensor fascia lata (TFL) muscle atrophy due to superior gluteal nerve (SGN) injury during total hip arthroplasty (THA) can affect patients' post-operative hip function. This study aimed to determine the incidence of TFL muscle atrophy in THA performed via the modified Watson-Jones anterolateral approach and the risk factors for TFL atrophy. Methods We reviewed pre-and post-operative magnetic resonance imaging (MRI) data of 164 patients who underwent cementless THA via the modified Wat… Show more
“…2 , 3 and 4 ). These include i) anterior superior iliac spine (ASIS) [ 59 , 80 , 81 ] ii) half way between the iliac crest and the superior tip of the greater trochanter [ 67 ] iii) anterior inferior iliac spine (AIIS) [ 59 ] iv) upper border of the acetabulum [ 46 , 82 , 83 ] v) superior tip of the greater trochanter [ 45 , 70 , 77 , 84 – 87 ] vi) lower border of the acetabulum [ 25 , 82 , 83 ] and vii) lesser trochanter [ 57 , 81 ]. Fig.…”
Section: Resultsmentioning
confidence: 99%
“…The two anatomical levels for TFL fatty infiltration assessment included the superior tip of the greater trochanter [ 85 , 87 ] and the lesser trochanter [ 75 , 80 , 81 ]. The level at the greater trochanter was consistent with other anatomical features including the centre of the femoral head [ 85 ] and the fovea capitis [ 19 , 21 , 22 ].…”
Background
Measures of hip muscle morphology and composition (e.g., muscle size and fatty infiltration) are possible with magnetic resonance imaging (MRI). Standardised protocols or guidelines do not exist for evaluation of hip muscle characteristics, hindering reliable and valid inter-study analysis. This scoping review aimed to collate and synthesise MRI methods for measuring lateral hip muscle size and fatty infiltration to inform the future development of standardised protocols.
Methods
Five electronic databases (Medline, CINAHL, Embase, SportsDISCUS and AMED) were searched. Healthy or musculoskeletal pain populations that used MRI to assess lateral hip muscle size and fatty infiltration were included. Lateral hip muscles of interest included tensor fascia late (TFL), gluteus maximus, gluteus medius, and gluteus minimus. Data on MRI parameters, axial slice location, muscle size and fatty infiltrate measures were collected and analysed. Cross referencing for anatomical locations were made between MRI axial slice and E-12 anatomical plastinate sections.
Results
From 2684 identified publications, 78 studies contributed data on volume (n = 31), cross sectional area (CSA) (n = 24), and fatty infiltration (n = 40). Heterogeneity was observed for MRI parameters and anatomical boundaries scrutinizing hip muscle size and fatty infiltration. Seven single level axial slices were identified that provided consistent CSA measurement, including three for both gluteus maximus and TFL, and four for both gluteus medius and minimus. For assessment of fatty infiltration, six axial slice locations were identified including two for TFL, and four for each of the gluteal muscles.
Conclusions
Several consistent anatomical levels were identified for single axial MR slice to facilitate muscle size and fatty infiltration muscle measures at the hip, providing the basis for reliable and accurate data synthesis and improvements in the validity of future between studies analyses. This work establishes the platform for standardised methods for the MRI assessment of lateral hip musculature and will aid in the examination of musculoskeletal conditions around the hip joint. Further studies into whole muscle measures are required to further optimise methodological parameters for hip muscle assessment.
“…2 , 3 and 4 ). These include i) anterior superior iliac spine (ASIS) [ 59 , 80 , 81 ] ii) half way between the iliac crest and the superior tip of the greater trochanter [ 67 ] iii) anterior inferior iliac spine (AIIS) [ 59 ] iv) upper border of the acetabulum [ 46 , 82 , 83 ] v) superior tip of the greater trochanter [ 45 , 70 , 77 , 84 – 87 ] vi) lower border of the acetabulum [ 25 , 82 , 83 ] and vii) lesser trochanter [ 57 , 81 ]. Fig.…”
Section: Resultsmentioning
confidence: 99%
“…The two anatomical levels for TFL fatty infiltration assessment included the superior tip of the greater trochanter [ 85 , 87 ] and the lesser trochanter [ 75 , 80 , 81 ]. The level at the greater trochanter was consistent with other anatomical features including the centre of the femoral head [ 85 ] and the fovea capitis [ 19 , 21 , 22 ].…”
Background
Measures of hip muscle morphology and composition (e.g., muscle size and fatty infiltration) are possible with magnetic resonance imaging (MRI). Standardised protocols or guidelines do not exist for evaluation of hip muscle characteristics, hindering reliable and valid inter-study analysis. This scoping review aimed to collate and synthesise MRI methods for measuring lateral hip muscle size and fatty infiltration to inform the future development of standardised protocols.
Methods
Five electronic databases (Medline, CINAHL, Embase, SportsDISCUS and AMED) were searched. Healthy or musculoskeletal pain populations that used MRI to assess lateral hip muscle size and fatty infiltration were included. Lateral hip muscles of interest included tensor fascia late (TFL), gluteus maximus, gluteus medius, and gluteus minimus. Data on MRI parameters, axial slice location, muscle size and fatty infiltrate measures were collected and analysed. Cross referencing for anatomical locations were made between MRI axial slice and E-12 anatomical plastinate sections.
Results
From 2684 identified publications, 78 studies contributed data on volume (n = 31), cross sectional area (CSA) (n = 24), and fatty infiltration (n = 40). Heterogeneity was observed for MRI parameters and anatomical boundaries scrutinizing hip muscle size and fatty infiltration. Seven single level axial slices were identified that provided consistent CSA measurement, including three for both gluteus maximus and TFL, and four for both gluteus medius and minimus. For assessment of fatty infiltration, six axial slice locations were identified including two for TFL, and four for each of the gluteal muscles.
Conclusions
Several consistent anatomical levels were identified for single axial MR slice to facilitate muscle size and fatty infiltration muscle measures at the hip, providing the basis for reliable and accurate data synthesis and improvements in the validity of future between studies analyses. This work establishes the platform for standardised methods for the MRI assessment of lateral hip musculature and will aid in the examination of musculoskeletal conditions around the hip joint. Further studies into whole muscle measures are required to further optimise methodological parameters for hip muscle assessment.
“…The two anatomical levels for TFL fatty in ltration assessment included the superior tip of the greater trochanter (79, 81) and the lesser trochanter (67, 74,75). The level at the greater trochanter was consistent with other anatomical features including the centre of the femoral head (79) and the fovea capitis (19,21,22).…”
Section: Tensor Fascia Lataementioning
confidence: 96%
“…Table 3 Cross sectional area measurement outcomes for individual studies Seven anatomical levels were identi ed as locations where CSA can be measured for the lateral hip muscles (Figures 2, 3 & 4). These include i) anterior superior iliac spine (ASIS) (73)(74)(75) ii) half way between the iliac crest and the superior tip of the greater trochanter (59) iii) anterior inferior iliac spine (AIIS) (73) iv) upper border of the acetabulum (46, 76, 77) v) superior tip of the greater trochanter (45, 62, 69, 78-81) vi) lower border of the acetabulum (25,76,77) and vii) lesser trochanter (57) (75).…”
Section: Table 2 Volume Measurement Outcomes For Individual Studiesmentioning
confidence: 99%
“…Gluteus medius and gluteus minimus were frequently assessed individually at the same level within a study. The four levels for gluteus medius and gluteus minimus fatty in ltration assessment are i) the distance at one third the distance from the iliac crest to the superior tip of the greater trochanter (19,59,61,79,87) ii) anterior superior iliac spine (74,75) iii) greater sciatic foramen (superior most part) (19,21,22,42) and iv) two thirds the distance from the iliac crest to the superior tip of the greater trochanter (19,59,61,79,87,(89)(90)(91)(92).…”
Background
Measures of hip muscle morphology and composition (e.g., muscle size and fatty infiltration) are possible with magnetic resonance imaging (MRI). Standardised protocols or guidelines do not exist for evaluation of hip muscle characteristics, hindering reliable and valid inter-study analysis. This scoping review aimed to collate and synthesise MRI methods for measuring lateral hip muscle size and fatty infiltration to inform the future development of standardised protocols.
Methods
Five electronic databases (Medline, CINAHL, Embase, SportsDISCUS and AMED) were searched. Healthy or musculoskeletal pain populations that used MRI to assess lateral hip muscle size and fatty infiltration were included. Lateral hip muscles of interest included tensor fascia late (TFL), gluteus maximus, gluteus medius, and gluteus minimus. Data on MRI parameters, axial slice location, muscle size and fatty infiltrate measures were collected and analysed. Cross referencing for anatomical locations were made between MRI axial slice and E-12 anatomical plastinate sections.
Results
From 2692 identified publications, 79 studies contributed data on volume (n = 31), cross sectional area (CSA) (n = 24), and fatty infiltration (n = 40). Heterogeneity was observed for MRI parameters and anatomical boundaries scrutinizing hip muscle size and fatty infiltration. Seven single level axial slices were identified that provided consistent CSA measurement, including three for both gluteus maximus and TFL, and four for both gluteus medius and minimus. For assessment of fatty infiltration, six axial slice locations were identified including two for TFL, and four for each of the gluteal muscles.
Conclusions
Several consistent anatomical levels were identified for single axial MR slice to facilitate muscle size and fatty infiltration muscle measures at the hip, providing the basis for reliable and accurate data synthesis and improvements in the validity of future between studies analyses. This work establishes the platform for standardised methods for the MRI assessment of lateral hip musculature and will aid in the examination of musculoskeletal conditions around the hip joint. Further studies into whole muscle measures are required to further optimise methodological parameters for hip muscle assessment.
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