Definition and research guide
This page combines a MeSH definition, publication statistics and selected research abstracts. It is a starting point for reading the literature, not a medical textbook or a systematic evidence review.
Content available: 4 complete abstracts (911 words), 10 references. Full article text is not stored or reproduced here; follow the PMID, DOI or PMC links to read the original sources and their access terms.
Definition
Either of two fleshy protuberances at the lower posterior section of the trunk or HIP in humans and primate on which a person or animal sits, consisting of gluteal muscles and fat.
Definition: NLM Medical Subject Headings (MeSH) scope note (Public domain (U.S. National Library of Medicine); attribution requested). View the MeSH record.
Also known as: Buttock; Gluteal Region; Gluteal Regions; Region, Gluteal; Regions, Gluteal.
Where it fits in the MeSH classification
- Broader topics
- Lower Extremity
Related concepts
- Muscles
Research landscape
PubMed indexes 6,848 records tagged with the MeSH heading “Buttocks” (counts retrieved 2026-10-31). 1,011 of them (14.8%) were published from 2020 onward, and the busiest period so far is through 1999 with 2,482 records.
Reviews account for 500 records (7.3%) and meta-analyses for 17. Randomized controlled trials number 129 (1.9%) as a share of all records on the topic. Randomized trials make up only a small share of this literature, so much of what is known comes from laboratory, observational or descriptive work.
Show the data
| Period | Records |
|---|---|
| through 1999 | 2,482 |
| 2000-2009 | 1,377 |
| 2010-2019 | 1,978 |
| 2020 onward | 1,011 |
Publication-type chart data
| Type | Records | Share |
|---|---|---|
| Reviews | 500 | 7.3% |
| Meta-analyses | 17 | 0.2% |
| Randomized controlled trials | 129 | 1.9% |
Method: PubMed query "Buttocks"[MeSH Terms] with publication-type and date filters, retrieved 2026-10-31.
Reading the evidence in anatomy and physiology
Anatomy describes how body structures are built and physiology describes how they normally work, so most findings here are descriptive or mechanistic rather than evidence about treatment. Much of what is known comes from dissection, imaging, tissue studies and experiments in animals, and measurements in healthy volunteers can differ from those in people with disease or at different ages. Normal ranges vary between individuals and populations. Check whether a result was measured in people or in another species, the age and health of the participants, and the method used.
Evidence from open-access studies
These open-access studies come from PubMed’s best-match results for this heading (papers whose main topic it is), ranked here by citation count, with one recent addition. Each abstract is reproduced in full under its recorded open licence so that you can read the authors’ own words. They illustrate the literature; they are not a systematic summary of it. Citation counts measure attention, not reliability or clinical benefit.
Analgesic Effect and Potential Cumulative Benefit from Caudal Epidural D5W in Consecutive Participants with Chronic Low-Back and Buttock/Leg Pain [1]
Abstract reading summary — source excerpts
- Opening excerpt
- Objectives: Chronic low-back pain (CLBP) participants in a prior controlled study reported short-term pain relief after caudal epidural injection of 5% dextrose (D5W).
- Closing excerpt
- The consistent pattern postinjection analgesia suggests a potential sensorineural effect of dextrose on neurogenic pain.
- Interpretation limits
- Verbatim excerpts from the authors’ abstract; the closing excerpt may describe a finding, limitation or recommendation. Design, population, effect size and uncertainty have not been independently extracted or appraised. Read the complete abstract and linked paper before interpreting the findings.
Read complete abstract (271 words)
Objectives: Chronic low-back pain (CLBP) participants in a prior controlled study reported short-term pain relief after caudal epidural injection of 5% dextrose (D5W). This study assessed whether repeated caudal epidural injections of D5W results in serial short-term diminution of CLBP and progressive long-term decrease in pain and disability. Design: Prospective uncontrolled study. Settings/Location: Outpatient pain clinic. Subjects: Adults with CLBP with radiation to gluteal or leg areas. Interventions: Caudal epidural injection of 10 mL of D5W (without anesthetic) every 2 weeks for four treatments and then as needed for 1 year. Outcome measures: Numerical Rating Scale (NRS, pain, 0-10 points), Oswestry Disability Index (ODI, disability, %), and fraction of participants with ≥50% reduction in NRS score. Analysis by intention to treat. Results: Participants (n = 32, 55 ± 9.8 years old, nine female) had moderate-to-severe CLBP (6.5 ± 1.2 NRS points) for 11.1 ± 10.8 years. They received 5.5 ± 2.9 caudal D5W injections through 12 months of follow-up. The data capture rate for analysis was 94% at 12 months for NRS and ODI outcome measures, with 6% carried forward by intention to treat. A consistent pattern of analgesia was demonstrated after D5W injection. Compared with baseline status, NRS and ODI scores improved by 3.4 ± 2.3 (52%) and 18.2 ± 16.4% (42%) points, respectively. The fraction of participants with 50% reduction in NRS-based pain was 21/32 (66%). Conclusion: Epidural D5W injection, in the absence of anesthetic, resulted in consistent postinjection analgesia and clinically significant improvement in pain and disability through 12 months for most participants. The consistent pattern postinjection analgesia suggests a potential sensorineural effect of dextrose on neurogenic pain.
Abstract reproduced from the open-access article under the recorded cc by licence; © the authors. PMID 29883193 · DOI · PMC6308281
Minimally invasive anterior muscle-sparing versus a transgluteal approach for hemiarthroplasty in femoral neck fractures-a prospective randomised controlled trial including 190 elderly patients [2]
Abstract reading summary — source excerpts
- Opening excerpt
- BackgroundThe relevance of femoral neck fractures (FNFs) increases with the ageing of numerous societies, injury-related decline is observed in many patients.
- Closing excerpt
- gov : NCT01408693 (registered August 3rd 2011).
- Interpretation limits
- Verbatim excerpts from the authors’ abstract; the closing excerpt may describe a finding, limitation or recommendation. Design, population, effect size and uncertainty have not been independently extracted or appraised. Read the complete abstract and linked paper before interpreting the findings.
Read complete abstract (354 words)
BackgroundThe relevance of femoral neck fractures (FNFs) increases with the ageing of numerous societies, injury-related decline is observed in many patients. Treatment strategies have evolved towards primary joint replacement, but the impact of different approaches remains a matter of debate. The aim of this trial was to evaluate the benefit of an anterior minimally-invasive (AMIS) compared to a lateral Hardinge (LAT) approach for hemiarthroplasty in these oftentimes frail patients.MethodsFour hundred thirty-nine patients were screened during the 44-months trial, aiming at the evaluation of 150 patients > 60 yrs. of age. Eligible patients were randomised using an online-tool with completely random assignment. As primary endpoint, early mobility, a predictor for long-term outcomes, was evaluated at 3 weeks via the "Timed up and go" test (TUG). Secondary endpoints included the Functional Independence Measure (FIM), pain, complications, one-year mobility and mortality.ResultsA total of 190 patients were randomised; both groups were comparable at baseline, with a predominance for frailty-associated factors in the AMIS-group. At 3 weeks, 146 patients were assessed for the primary outcome. There was a reduction in the median duration of TUG performance of 21.5% (CI [- 41.2,4.7], p = 0.104) in the AMIS-arm (i.e., improved mobility). This reduction was more pronounced in patients with signs of frailty or cognitive impairment. FIM scores increased on average by 6.7 points (CI [0.5-12.8], p = 0.037), pain measured on a 10-point visual analogue scale decreased on average by 0.7 points (CI: [- 1.4,0.0], p = 0.064). The requirement for blood transfusion was lower in the AMIS- group, the rate of complications comparable, with a higher rate of soft tissue complications in the LAT-group. The mortality was higher in the AMIS-group.ConclusionThese results, similar to previous reports, support the concept that in elderly patients at risk of frailty, the AMIS approach for hemiarthroplasty can be beneficial, since early mobilisation and pain reduction potentially reduce deconditioning, morbidity and loss of independence. The results are, however, influenced by a plethora of factors. Only improvements in every aspect of the therapeutic chain can lead to optimisation of treatment and improve outcomes in this growing patient population.Trial registrationwww.clinicaltrials.gov : NCT01408693 (registered August 3rd 2011).
Abstract reproduced from the open-access article under the recorded cc by licence; © the authors. PMID 30241509 · DOI · PMC6151034
Long-term outcome of low-energy extracorporeal shockwave therapy on gluteal tendinopathy documented by magnetic resonance imaging [3]
Abstract reading summary — source excerpts
- Opening excerpt
- BackgroundPrevious outcome studies for extracorporeal shock wave therapy (ESWT) have included clinically diagnosed greater trochanteric pain syndrome (GTPS).
- Closing excerpt
- However, its long-term effect appears to decrease with time.
- Interpretation limits
- Verbatim excerpts from the authors’ abstract; the closing excerpt may describe a finding, limitation or recommendation. Design, population, effect size and uncertainty have not been independently extracted or appraised. Read the complete abstract and linked paper before interpreting the findings.
Read complete abstract (162 words)
BackgroundPrevious outcome studies for extracorporeal shock wave therapy (ESWT) have included clinically diagnosed greater trochanteric pain syndrome (GTPS). The purpose of this study is to investigate outcome of ESWT on GTPS with gluteal tendinopathy documented by magnetic resonance imaging (MRI).MethodsMedical records of 38 consecutive patients were retrospectively reviewed, who underwent ESWT for GTPS with MRI-documented gluteal tendinopathy (> 6 months). ESWT was conducted (1/week) when the Roles-Maudsley score (RMS) showed "Poor" or "Fair" grade after conservative treatment until RMS had reached "Good" or "Excellent" grade (treatment success) or until 12 treatments had been applied. Numeric rating scale (NRS) and RMS were evaluated before, 1 week after (immediate follow-up) and mean 27 months after ESWT program (long-term follow-up). Success rate was calculated at each follow-up point.ResultsInitial NRS (5.9 ± 1.6) significantly decreased at immediate (2.5 ± 1.5, pConclusionLow-energy ESWT can be an effective treatment for pain relief in chronic GTPS with MRI-documented gluteal tendinopathy. However, its long-term effect appears to decrease with time.
Abstract reproduced from the open-access article under the recorded cc by licence; © the authors. PMID 30016333 · DOI · PMC6050036
Functional accessory limb arising from the buttock: a case report [4]
Abstract reading summary — source excerpts
- Opening excerpt
- BackgroundPolymelia, or accessory limb, is a rare congenital abnormality with unknown etiology.
- Closing excerpt
- Clinical trial numberNot applicable.
- Interpretation limits
- Verbatim excerpts from the authors’ abstract; the closing excerpt may describe a finding, limitation or recommendation. Design, population, effect size and uncertainty have not been independently extracted or appraised. Read the complete abstract and linked paper before interpreting the findings.
Read complete abstract (124 words)
BackgroundPolymelia, or accessory limb, is a rare congenital abnormality with unknown etiology. Here we report the case of an infant with an accessory limb, review the diagnostic and therapeutic consideration of such cases, and highlight the potential challenges in management of an accessory limb.Case presentationWe report the case of a 2-month-old male with an accessory limb arising from the left buttock. The limb was sensate and mobile joints. Our diagnostic workup did not reveal associated spinal dysraphism, but a left dislocated hip was found. The limb was surgically removed, and the hip dislocation was eventually treated with open reduction, with excellent results.ConclusionThis study reports a rare case of accessory limb and reviews the important considerations in the management of this condition.Clinical trial numberNot applicable.
Abstract reproduced from the open-access article under the recorded cc by licence; © the authors. PMID 40329259 · DOI · PMC12054316
Key reviews and meta-analyses
The most cited review-type papers among PubMed’s best-match results for this heading, listed with bibliographic details only. Follow the links for the full text and access terms.
- Research article Gluteal Tendinopathy: A Review of Mechanisms, Assessment and Management [5]
- Research article Determining the Safety and Efficacy of Gluteal Augmentation: A Systematic Review of Outcomes and Complications [6]
- Research article A review of the anatomy of the hip abductor muscles, gluteus medius, gluteus minimus, and tensor fascia lata [7]
- Research article Outcome after Interruption or Preservation of Internal Iliac Artery Flow During Endovascular Repair of Abdominal Aorto-iliac Aneurysms [8]
- Research article Piriformis syndrome and low back pain: a new classification and review of the literature [9]
- Research article Gluteal Tendinopathy: Integrating Pathomechanics and Clinical Features in Its Management [10]
References
- Maniquis-Smigel L, Reeves KD, Rosen HJ, Lyftogt J, Graham-Coleman C, Cheng AL, et al.. Analgesic Effect and Potential Cumulative Benefit from Caudal Epidural D5W in Consecutive Participants with Chronic Low-Back and Buttock/Leg Pain. . 2018. PMID 29883193 · DOI · PMC6308281
- Saxer F, Studer P, Jakob M, Suhm N, Rosenthal R, Dell-Kuster S, et al.. Minimally invasive anterior muscle-sparing versus a transgluteal approach for hemiarthroplasty in femoral neck fractures-a prospective randomised controlled trial including 190 elderly patients. . 2018. PMID 30241509 · DOI · PMC6151034
- Seo KH, Lee JY, Yoon K, Do JG, Park HJ, Lee SY, et al.. Long-term outcome of low-energy extracorporeal shockwave therapy on gluteal tendinopathy documented by magnetic resonance imaging. . 2018. PMID 30016333 · DOI · PMC6050036
- Ebrahiminasab MM, Baghdadi T, Tabatabaei Irani P, Baghdadi S. Functional accessory limb arising from the buttock: a case report. . 2025. PMID 40329259 · DOI · PMC12054316
- Grimaldi A, Mellor R, Hodges P, Bennell K, Wajswelner H, Vicenzino B. Gluteal Tendinopathy: A Review of Mechanisms, Assessment and Management. Sports Med. 2015. PMID 25969366 · DOI
- Sinno S, Chang JB, Brownstone ND, Saadeh PB, Wall S. Determining the Safety and Efficacy of Gluteal Augmentation: A Systematic Review of Outcomes and Complications. Plast Reconstr Surg. 2016. PMID 27018670 · DOI
- Flack NA, Nicholson HD, Woodley SJ. A review of the anatomy of the hip abductor muscles, gluteus medius, gluteus minimus, and tensor fascia lata. Clin Anat. 2012. PMID 22109658 · DOI
- Kouvelos GN, Katsargyris A, Antoniou GA, Oikonomou K, Verhoeven EL. Outcome after Interruption or Preservation of Internal Iliac Artery Flow During Endovascular Repair of Abdominal Aorto-iliac Aneurysms. Eur J Vasc Endovasc Surg. 2016. PMID 27600731 · DOI
- Papadopoulos EC, Khan SN. Piriformis syndrome and low back pain: a new classification and review of the literature. Orthop Clin North Am. 2004. PMID 15062719 · DOI
- Grimaldi A, Fearon A. Gluteal Tendinopathy: Integrating Pathomechanics and Clinical Features in Its Management. J Orthop Sports Phys Ther. 2015. PMID 26381486 · DOI
About this article
- Sources
- NLM Medical Subject Headings (definition, synonyms); NCBI PubMed (counts, identifiers); Europe PMC (open-access abstracts and citation counts).
- Verification
- Every reference was resolved against PubMed on 2026-10-31; title, year and DOI matched.
- Review state
- automated source verified; no human expert review has been recorded yet.
- Version
- 1, last updated 2026-10-31.
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Evidence strength
EvidenceHelix's computed view of the study designs behind this topic: how common meta-analyses, randomized trials and reviews are, how recent the literature is, and a plain-language reading. It describes the design mix of the literature. It is not a quality appraisal of any study, and it is not medical advice.