SynthesisSkeletal radiology2020
Microinstability of the hip: a systematic review of the imaging findings.
Synthesis in Skeletal radiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
What it found
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
22 citing papers in PubMed, 37 citations in OpenAlex.
- The Superior Fascicle of the Anterior Talofibular Ligament Functions as a Restraint Against Internal Rotation: A Cadaveric Biomechanical Study.Foot & ankle international · 2026Article
- Regional femoral head Hounsfield units mirror acetabular undercoverage in acetabular dysplasia.Journal of experimental orthopaedics · 2026Article
- Response to the LETTER TO THE EDITOR on the Paper "Imaging evaluation of hip capsule disorders: a comprehensive review".Skeletal radiology · 2025Article
- Evaluation of bony features associated with hip instability in hip dysplasia.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2025Article
- Imaging characteristics of hip joint microinstability: a case-control study of hip arthroscopy patients.Skeletal radiology · 2025Article
- Imaging evaluation of hip capsule disorders: a comprehensive review.Skeletal radiology · 2025Review
- Periacetabular Osteotomy Improves Hip Microinstability Between Supine and Standing Radiographs in Symptomatic Hip Dysplasia.Orthopaedic journal of sports medicine · 2025Article
- Femoral head and acetabular necrosis combined with hip subluxation in people with HIV: a case report and literature review.BMC musculoskeletal disorders · 2024Review
- Protocol and validity testing of femoroacetabular posterior translation with dynamic hip ultrasonography.Skeletal radiology · 2024Article
- SSR white paper: guidelines for utilization and performance of direct MR arthrography.Skeletal radiology · 2024Review
- Article
- Femoral head translation in borderline and definite dysplastic hips during weight-bearing: 2D/3D image registration analysis.Journal of experimental orthopaedics · 2023Article
- Dynamic ultrasound assessment of hip instability and anterior and posterior hip impingement.Skeletal radiology · 2023Article
- The posterior crescent sign on MRI and MR arthrography: is it a marker of hip dysplasia and instability?Skeletal radiology · 2023Article
- Can Hip Passive Range of Motion Predict Hip Microinstability? A Comparative Study.Orthopaedic journal of sports medicine · 2023Article
- Diagnosing Hip Microinstability: an international consensus study using the Delphi methodology.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Review
- Correlation of Delayed Gadolinium-Enhanced MRI of Cartilage (dGEMRIC) Value With Hip Arthroscopy Intraoperative Findings and Midterm Periacetabular Osteotomy Outcomes.Orthopaedic journal of sports medicine · 2022Article
- Ligamentum Teres Lesions Are Associated With Poorer Patient Outcomes in a Large Primary Hip Arthroscopy Cohort of 1,935 Patients.Arthroscopy, sports medicine, and rehabilitation · 2022Article
- Prone Apprehension Relocation Test significantly correlates with radiological instability scores of the hip.Journal of hip preservation surgery · 2022Article
- Female gender, decreased lateral center edge angle and a positive hyperextension-external rotation test are associated with ease of hip distractability at time of hip arthroscopy.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022Article
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTo undertake a systematic review of the morphologic features associated with hip microinstability and determine whether there are suggestive or diagnostic imaging findings.
methodsFour electronic databases were searched up to September 2019 to identify original research reporting morphologic features in individuals with either a clinical diagnosis of hip microinstability (instability without overt subluxation/dislocation) or those with symptomatic laxity demonstrated on imaging (increased femoral head translation/distraction or capsular volume). Studies focussing on individuals with pre-existing hip conditions (including definite dysplasia (lateral centre edge angle < 20°), significant trauma, previous dislocation or surgery were excluded. Methodological quality was assessed by the Quality Assessment of Diagnostic Accuracy Studies 2 tool.
resultsTwenty-two studies met inclusion criteria (clinical diagnosis of microinstability n = 15 and demonstration of laxity n = 7). Imaging information gathered from the studies includes radiographs (n = 14), MRI (n = 6), MR arthrography (n = 4), CT (n = 1) and intraoperative examination. Most studies exhibited design features associated with an overall high or unclear risk of bias. Some dysplastic features are associated with microinstability or laxity reference measures; however, microinstability is frequently diagnosed in those with a lateral centre edge angle > 25°. Other associated imaging findings reported include impingement morphology, anterior labral tearing, femoral head chondral injury, ligamentum teres tears and capsular attenuation.
conclusionsThe current literature does not provide strong evidence for imaging features diagnostic of microinstability. In the appropriate clinical context, dysplastic morphology, anterior labral tears and ligamentum teres tears may be suggestive of this condition although further research is needed to confirm this. PROSPERO REGISTRATION: CRD42019122406.
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