Evidence map›Paper›PMID 22760601›Full record

ArticleClinical orthopaedics and related research2012

Does PFNA II avoid lateral cortex impingement for unstable peritrochanteric fractures?

George A Macheras, Stefanos D Koutsostathis, Spyridon Galanakos, Konstantinos Kateros, Stamatios A Papadakis

Open access · greenAbstract read
In one paragraph

Article in Clinical orthopaedics and related research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.2field-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

19 citing papers in PubMed, 43 citations in OpenAlex.

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  14. Intertrochanteric fractures: a review of fixation methods.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2016
    Review
  15. Article
  16. Proximal femoral nail antirotation in treatment of fractures of proximal femur.Medical archives (Sarajevo, Bosnia and Herzegovina) · 2014
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

George A Macheras4th Department of Orthopaedics and Traumatology, KAT Hospital, 2 Nikis Street, 145 61 Athens, Greece. gmacheras@gmail.com
Stefanos D Koutsostathis
Spyridon Galanakos
Konstantinos Kateros
Stamatios A Papadakis
General Hospital of Attica · GR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundProximal femoral nail antirotation devices (PFNAs) are considered biomechanically superior to dynamic hip screws for treating unstable peritrochanteric fractures and reportedly have a lower complication rate. The PFNA II was introduced to eliminate lateral cortex impingement encountered with the PFNA. However, it is unclear whether the new design in fact avoids lateral cortex impingement without compromising stability of fixation and fracture healing. QUESTIONS/PURPOSES: We therefore asked whether the PFNA II: (1) eliminates the lateral cortex impingement and fracture displacement experienced with PFNA; and (2) provides stable fracture fixation with a low major complication rate for unstable fractures in European patients.

methodsWe retrospectively reviewed 108 patients with an unstable peritrochanteric fracture, 58 treated with PFNA and 50 with PFNA II. We compared nail positioning, major and minor complication rates, operative and fluoroscopy time, blood transfused, time to mobilization, hospital stay, fracture union, and Harris hip score. The minimum followup was 12 months (mean, 13 months; range, 12-18 months).

resultsIn the PFNA II group we encountered no impingement on the lateral cortex and no patients with lateral fragment or loss of reduction at insertion, whereas with the PFNA group, we had 10 and five cases, respectively. Fracture union occurred in all patients treated with PFNA II without mechanical failures. PFNA II cases were associated with a slightly shorter surgical time than PFNA cases (23 minutes versus 27 minutes, respectively).

conclusionPFNA II avoided lateral cortex impingement experienced with PFNA, providing fast and stable fixation of the unstable peritrochanteric fractures. LEVEL OF EVIDENCE: Level III, retrospective comparative study. See Guidelines for Authors for a complete description of levels of evidence.

Indexed as

Bone NailsAgedAged, 80 and overFemaleFracture Fixation, InternalFracture HealingHip FracturesHumansMaleMiddle AgedRetrospective Studies

Identifiers

PMID22760601
PMCPMC3462868
OpenAlexW2117107826

What OpenQuestion holds

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Read underepoch 390

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.