Abstract
Purpose
Clinicians are not confident in diagnosing deep gluteal syndrome (DGS) because of the ambiguity of the DGS disease definition and DGS diagnostic pathway. The purpose of this systematic review was to identify the DGS disease definition, and also to define a general DGS diagnostic pathway.
Methods
A systematic search was performed using four electronic databases: PubMed, MEDLINE, EMBASE, and Google Scholar. In eligibility criteria, studies in which cases were explicitly diagnosed with DGS were included, whereas review articles and commentary papers were excluded. Data are presented descriptively.
Results
The initial literature search yielded 359 articles, of which 14 studies met the eligibility criteria, pooling 853 patients with clinically diagnosed with DGS. In this review, it was discovered that the DGS disease definition was composed of three parts: (1) non-discogenic, (2) sciatic nerve disorder, and (3) nerve entrapment in the deep gluteal space. In the diagnosis of DGS, we found five diagnostic procedures: (1) history taking, (2) physical examination, (3) imaging tests, (4) response-to-injection, and (5) nerve-specific tests (electromyography). History taking (e.g. posterior hip pain, radicular pain, and difficulty sitting for 30 min), physical examination (e.g. tenderness in deep gluteal space, pertinent positive results with seated piriformis test, and positive Pace sign), and imaging tests (e.g. pelvic radiographs, spine and pelvic magnetic resonance imaging (MRI)) were generally performed in cases clinically diagnosed with DGS.
Conclusion
Existing literature suggests the DGS disease definition as being a non-discogenic sciatic nerve disorder with entrapment in the deep gluteal space. Also, the general diagnostic pathway for DGS was composed of history taking (posterior hip pain, radicular pain, and difficulty sitting for 30 min), physical examination (tenderness in deep gluteal space, positive seated piriformis test, and positive Pace sign), and imaging tests (pelvic radiographs, pelvic MRI, and spine MRI). This review helps clinicians diagnose DGS with more confidence.
Level of evidence
IV.
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Discover the latest articles, news and stories from top researchers in related subjects.Abbreviations
- DGS:
-
Deep gluteal syndrome
- MINORS:
-
The methodological index for non-randomized studies
- MRI:
-
Magnetic resonance imaging
- PRISMA:
-
The preferred reporting items for systematic reviews and meta-analyses
- SI:
-
Sacroiliac
- 95% CI:
-
95% confidence interval
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KK, SU, and OA conceptualized the work and formatted the research question. KK and AS performed searching. KK and CA assessed the quality of the included studies. KK, NS and AD performed data acquisition and statistical analysis. SU, HM, and OA interpreted the data and commented on the data. KK wrote the manuscript. OA supervised the study and edited the manuscript.
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Kizaki, K., Uchida, S., Shanmugaraj, A. et al. Deep gluteal syndrome is defined as a non-discogenic sciatic nerve disorder with entrapment in the deep gluteal space: a systematic review. Knee Surg Sports Traumatol Arthrosc 28, 3354–3364 (2020). https://doi.org/10.1007/s00167-020-05966-x
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DOI: https://doi.org/10.1007/s00167-020-05966-x