Evidence map›Paper›PMID 28904636›Full record

ArticleJournal of children's orthopaedics2017

The orthopaedic management of lower limb deformity in hypophosphataemic rickets.

A Horn, J Wright, D Bockenhauer, W Van't Hoff, D M Eastwood

Open access · goldAbstract read
In one paragraph

Article in Journal of children's orthopaedics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 12% 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

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 56 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Impact of burosumab on lower limb alignment in children with X-linked hypophosphatemia.Journal of the Pediatric Orthopaedic Society of North America · 2024
    Article
  11. X-linked hypophosphatemic rickets: from diagnosis to management.Clinical and experimental pediatrics · 2024
    Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Rickets guidance: part II-management.Pediatric nephrology (Berlin, Germany) · 2022
    Article
  17. Lower limb bone geometry in adult individuals with X-linked hypophosphatemia: an observational study.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2022
    Observational
  18. Review
  19. Article
  20. Observational
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

5 authors at 3 institutions in 2 countries.

A HornDepartment of Orthopaedic Surgery, Red Cross War Memorial Hospital for Children, Cape Town, South Africa.
J WrightDepartment of Orthopaedic Surgery, Great Ormond St Hospital for Children, LondonUK.
D BockenhauerDepartment of Nephro-Urology, Great Ormond St Hospital for Children, LondonUK.
W Van't HoffDepartment of Nephro-Urology, Great Ormond St Hospital for Children, LondonUK.
D M EastwoodDepartment of Orthopaedic Surgery, Great Ormond St Hospital for Children, LondonUK.
Great Ormond Street Hospital · GBUniversity College London · GBRed Cross War Memorial Children's Hospital · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMany patients with X-linked hypophosphataemic rickets (X-LHPR) demonstrate significant lower limb deformity despite optimal medical management. This study evaluates the use of guided growth by means of hemi-epiphysiodesis to address coronal plane deformity in the skeletally immature child.

methodsSince 2005, 24 patients with X-LHPR have been referred to our orthopaedic unit for evaluation. All patients had standardised long leg radiographs that were analysed sequentially before and after surgery if any was performed. The rate of correction of deformity was calculated based on peri-articular angles and diaphyseal deformity angles measured at regular intervals using Traumacad software. Clinical records were reviewed to obtain relevant clinical and demographic details. Statistical analysis was performed using SPSS 23 (SPSS Inc., Chicago, IL, USA).

resultsThe indication for surgical intervention was a mechanical axis progressing through Zone 2 or in Zone 3 despite one year of optimised medical treatment. The 15 patients underwent 16 episodes of guided growth (30 limbs, 38 segments) at a mean age of 10.3 years. In four limbs, surgery has only taken place recently; and in three limbs, correction is ongoing. Neutral mechanical axis was restored in 16/23 (70%) limbs: six improved and one limb (one segment) required osteotomy for residual deformity. The mean rate of angular correction per month was 0.3° for the proximal tibia and 0.7° for the distal femur. Patients with ≥ 3 years of growth remaining responded significantly better than older patients (p = 0.004). Guided growth was more successful in correcting valgus than varus deformity (p = 0.007). In younger patients, diaphyseal deformity corrected at a rate of 0.2° and 0.6° per month for the tibia and the femur, respectively. There has been one case of recurrent deformity. Patients with corrected coronal plane alignment did not complain of significant residual torsional malalignment. Serum phosphate and alkaline phosphatase levels did not affect response to surgery.

conclusionsGuided growth is a successful, minimally invasive method of addressing coronal plane deformity in X-LHPR. If coronal plane deformity is corrected early in patients with good metabolic control, osteotomy can be avoided.

Indexed as

Guided growthhypophosphataemic ricketslower limb deformity

Identifiers

PMID28904636
PMCPMC5584499
OpenAlexW2737241228

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

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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.