Evidence map›Paper›PMID 34694498›Full record

SynthesisEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2022

Coccygectomy for refractory coccygodynia: a systematic review and meta-analysis.

Navraj S Sagoo, Ali S Haider, Paolo Palmisciano, Christopher Vannabouathong, Roberto Gonzalez, Andrew L Chen, Nidhish Lokesh, Neha Sharma, Kylan Larsen, Ravinderjit Singh and 6 more

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.

  1. Guideline
  2. Article
  3. Comparison of Midline and Paramedian Approaches in Coccygectomy.Medical science monitor : international medical journal of experimental and clinical research · 2026
    Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

16 authors at 7 institutions in 2 countries.

Navraj S SagooDepartment of Orthopaedic Surgery, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, MC 8855, USA.
Ali S HaiderDeparment of Neurosurgery, MD Anderson Cancer Center, Houston, TX, USA.
Paolo PalmiscianoDepartment of Neurosurgery, Trauma and Gamma Knife Center, Cannizzaro Hospital, Catania, Italy.
Christopher VannabouathongDepartment of Orthopaedic Surgery, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, MC 8855, USA.
Roberto GonzalezDepartment of Orthopaedic Surgery, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, MC 8855, USA.
Andrew L ChenDepartment of Orthopaedic Surgery, Texas Tech University School of Medicine, Lubbock, TX, USA.
Nidhish LokeshDepartment of Orthopaedic Surgery, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, MC 8855, USA.
Neha SharmaRoseman University of Health Sciences, South Jordan, UT, USA.
Kylan LarsenDepartment of Orthopaedic Surgery, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, MC 8855, USA.
Ravinderjit SinghDepartment of Orthopaedic Surgery, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, MC 8855, USA.
Neha MulpuriDepartment of Orthopaedic Surgery, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, MC 8855, USA.
Kevin Rezzadeh6Department of Orthopaedic Surgery, Cedars-Sinai Orthopaedics, Los Angeles, CA, USA.
Christie CaldwellDepartment of Orthopaedic Surgery, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, MC 8855, USA.
Lori A TappenDepartment of Orthopaedic Surgery, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, MC 8855, USA.
Kevin GillDepartment of Orthopaedic Surgery, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, MC 8855, USA.
Shaleen ViraDepartment of Orthopaedic Surgery, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, MC 8855, USA. shaleen.vira@utsouthwestern.edu.ORCID 0000-0002-6966-3270
The University of Texas Southwestern Medical Center · USCedars-Sinai Medical Center · USOspedale Cannizzaro · ITRoseman University of Health Sciences · USSouthwestern Medical Center · USTexas Tech University · USThe University of Texas MD Anderson Cancer Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWe sought to systematically assess and summarize the available literature on outcomes following coccygectomy for refractory coccygodynia.

methodsPubMed, Scopus, and Cochrane Library databases were systematically searched in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Data concerning patient demographics, validated patient reported outcome measures (PROMs) for pain relief, disability outcomes, complications, and reoperation rates were extracted and analyzed.

resultsA total of 21 studies (18 retrospective and 3 prospective) were included in the quantitative analysis. A total of 826 patients (females = 75%) received coccygectomy (720 total and 106 partial) for refractory coccygodynia. Trauma was reported as the most common etiology of coccygodynia (56%; n = 375), followed by idiopathic causes (33%; n = 221). The pooled mean difference (MD) in pain scores from baseline on a 0-10 scale was 5.03 (95% confidence interval [CI]: 4.35 to 6.86) at a 6-12 month follow-up (FU); 5.02 (95% CI: 3.47 to 6.57) at > 12-36 months FU; and 5.41 (95% CI: 4.33 to 6.48) at > 36 months FU. The MCID threshold for pain relief was surpassed at each follow-up. Oswestry Disability Index scores significantly improved postoperatively, with a pooled MD from baseline of - 23.49 (95% CI: - 31.51 to - 15.46), surpassing the MCID threshold. The pooled incidence of complications following coccygectomy was 8% (95% CI: 5% to 12%), the most frequent of which were surgical site infections and wound dehiscence. The pooled incidence of reoperations was 3% (95% CI: 1% to 5%).

conclusionCoccygectomy represents a viable treatment option in patients with refractory coccygodynia.

Indexed as

CoccyxLow Back PainFemaleHumansProspective StudiesRetrospective StudiesTreatment OutcomeCoccygeal resectionCoccygectomyCoccygodyniaCoccyx

Identifiers

PMID34694498
OpenAlexW3210112417

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.