Skip to content
EvidenceHelixEvidenceLib · Scientific Encyclopedia
⌘ K

Scientific library

EvidenceLib encyclopediaAll articles A–Z2,100Open textbooks2Cancer study catalog458How it is made

My workspace this browser

Saved pages0Notes & annotations0

Recently viewed

Explore by field

Cancer and Oncology107Genetics and Genomics95Neuroscience110Cardiovascular Medicine105Immunology90Pharmacology99Molecular Biology100Infectious Diseases102Rare and Inherited Diseases106Clinical Research98Anatomy and Physiology542Drugs and Chemicals546
Plans & pricingCompare EvidenceHelix workspace plans
Library›EvidenceLib›Anatomy and Physiology›Buttocks
Explore more with EvidenceHelix Workspace

Compare studies, analyze evidence and create research reports with premium tools.

Explore Researcher plans

Research reading room

Buttocks

Anatomy and Physiology · NLM MeSH · updated 2026-10-31 · version 1

Citations verified against PubMedNot yet clinician-reviewed10 referencesApproximately 5 min read

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.

Table of Contents

1. Definition2. Research landscape3. Reading the evidence4. Open-access studies5. Key reviews6. References7. About this article

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.

PubMed records by publication periodthrough 1999: 2,482 records; 2000-2009: 1,377 records; 2010-2019: 1,978 records; 2020 onward: 1,011 records2,482through 19991,3772000-20091,9782010-20191,0112020 onward
Records in PubMed indexed with this heading, by publication period. Real counts from NCBI E-utilities; the final period covers only part of the current year. Volume reflects how much has been published, not how strong the evidence is.
Show the data
PeriodRecords
through 19992,482
2000-20091,377
2010-20191,978
2020 onward1,011
Share of records by publication typeReviews: 7.3 percent; Meta-analyses: 0.2 percent; Randomized controlled trials: 1.9 percentReviews7.3% (500)Meta-analyses0.2% (17)Randomized controlled trials1.9% (129)
Share of all PubMed records on this heading that carry each publication type. Types overlap with other records, so the shares do not sum to 100%.
Publication-type chart data
Publication types among 6,848 PubMed records
TypeRecordsShare
Reviews5007.3%
Meta-analyses170.2%
Randomized controlled trials1291.9%

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.

Study comparison — selected abstracts, not a systematic review
Study / authorsYearSource label / designEurope PMC citationsLicence / source
Analgesic Effect and Potential Cumulative Benefit from Caudal Epidural D5W in Consecutive Participants with Chronic Low-Back and Buttock/Leg Pain
Maniquis-Smigel L, Reeves KD, Rosen HJ, Lyftogt J, Graham-Coleman C, Cheng AL, et al.
2018Research article
Design not recorded in structured metadata
25cc by
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
Saxer F, Studer P, Jakob M, Suhm N, Rosenthal R, Dell-Kuster S, et al.
2018Randomized controlled trial
Design not recorded in structured metadata
20cc by
PMID 30241509 · DOI · PMC6151034
Long-term outcome of low-energy extracorporeal shockwave therapy on gluteal tendinopathy documented by magnetic resonance imaging
Seo KH, Lee JY, Yoon K, Do JG, Park HJ, Lee SY, et al.
2018Research article
Design not recorded in structured metadata
19cc by
PMID 30016333 · DOI · PMC6050036
Functional accessory limb arising from the buttock: a case report
Ebrahiminasab MM, Baghdadi T, Tabatabaei Irani P, Baghdadi S
2025Research article
Design not recorded in structured metadata
0cc by
PMID 40329259 · DOI · PMC12054316

Analgesic Effect and Potential Cumulative Benefit from Caudal Epidural D5W in Consecutive Participants with Chronic Low-Back and Buttock/Leg Pain [1]

Research article Maniquis-Smigel L, Reeves KD, Rosen HJ, Lyftogt J, Graham-Coleman C, Cheng AL, et al. · · 2018 · cited 25 times (Europe PMC)

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]

Randomized controlled trial Saxer F, Studer P, Jakob M, Suhm N, Rosenthal R, Dell-Kuster S, et al. · · 2018 · cited 20 times (Europe PMC)

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]

Research article Seo KH, Lee JY, Yoon K, Do JG, Park HJ, Lee SY, et al. · · 2018 · cited 19 times (Europe PMC)

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]

Research article Ebrahiminasab MM, Baghdadi T, Tabatabaei Irani P, Baghdadi S · · 2025

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]
    Grimaldi A, Mellor R, Hodges P, Bennell K, Wajswelner H, Vicenzino B · Sports Med · 2015 · cited 104 times (Europe PMC)
  • Research article Determining the Safety and Efficacy of Gluteal Augmentation: A Systematic Review of Outcomes and Complications [6]
    Sinno S, Chang JB, Brownstone ND, Saadeh PB, Wall S · Plast Reconstr Surg · 2016 · cited 97 times (Europe PMC)
  • Research article A review of the anatomy of the hip abductor muscles, gluteus medius, gluteus minimus, and tensor fascia lata [7]
    Flack NA, Nicholson HD, Woodley SJ · Clin Anat · 2012 · cited 95 times (Europe PMC)
  • Research article Outcome after Interruption or Preservation of Internal Iliac Artery Flow During Endovascular Repair of Abdominal Aorto-iliac Aneurysms [8]
    Kouvelos GN, Katsargyris A, Antoniou GA, Oikonomou K, Verhoeven EL · Eur J Vasc Endovasc Surg · 2016 · cited 91 times (Europe PMC)
  • Research article Piriformis syndrome and low back pain: a new classification and review of the literature [9]
    Papadopoulos EC, Khan SN · Orthop Clin North Am · 2004 · cited 86 times (Europe PMC)
  • Research article Gluteal Tendinopathy: Integrating Pathomechanics and Clinical Features in Its Management [10]
    Grimaldi A, Fearon A · J Orthop Sports Phys Ther · 2015 · cited 83 times (Europe PMC)

References

  1. 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
  2. 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
  3. 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
  4. Ebrahiminasab MM, Baghdadi T, Tabatabaei Irani P, Baghdadi S. Functional accessory limb arising from the buttock: a case report. . 2025. PMID 40329259 · DOI · PMC12054316
  5. 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
  6. 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
  7. 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
  8. 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
  9. 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
  10. 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.

See how EvidenceLib is built. Spotted an error? Email support@evidencehelix.com.

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.

Included with the Researcher plan

Reading every article stays free. This computed view is part of the paid plans.

See plans Sign in

Your notes

Notes and highlights stay in this browser only; they are not sent to EvidenceHelix.

Related research topics

  • Lower ExtremityAnatomy and Physiology
  • FootAnatomy and Physiology
  • HeelAnatomy and Physiology
  • HipAnatomy and Physiology
  • FasciaAnatomy and Physiology
  • Untranslated RegionsGenetics and Genomics

All 542 articles in Anatomy and Physiology →

At a glance

6,848
PubMed records on this heading
15%
published since 2020
500
review articles
129
randomized trials
10
verified references below

Counts come from PubMed on 2026-10-31; they show how much has been written, not how strong the evidence is.

Related topics See all →

  • Lower ExtremityAnatomy and Physiology
  • FootAnatomy and Physiology
  • HeelAnatomy and Physiology
  • HipAnatomy and Physiology
  • FasciaAnatomy and Physiology

My notes & annotations (0)

Nothing yet. Select text and press Highlight, or write a note in the Notes tab. Stored in this browser only.

Sources

  • NLM MeSH record ↗
  • PubMed search used ↗

EvidenceLib is a research-education resource, not medical advice. It does not diagnose, prescribe or recommend starting, stopping or changing any treatment. Talk to a qualified clinician about your own situation. Methods, sources and licences · Legal · Support