Evidence map›Paper›PMID 41798592›Full record

ArticleSurgical case reports2026

Free Flap Reconstruction for Gastrocnemius Muscle Necrosis to Avoid Above-Knee Amputation.

Hikaru Watanabe, Suzuna Ishimoto, Maiko Inada, Miki Nakanishi, Yasuhiro Sakata, Satsuki Tachibana, Shinichi Asamura

Abstract readCase Reports
In one paragraph

Article in Surgical case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

7 authors.

Hikaru WatanabeDepartment of Plastic and Reconstructive Surgery, Graduate School of Medicine, Wakayama Medical University, Wakayama, Wakayama, Japan.
Suzuna IshimotoDepartment of Plastic and Reconstructive Surgery, Graduate School of Medicine, Wakayama Medical University, Wakayama, Wakayama, Japan.
Maiko InadaDepartment of Plastic and Reconstructive Surgery, Graduate School of Medicine, Wakayama Medical University, Wakayama, Wakayama, Japan.
Miki NakanishiDepartment of Plastic and Reconstructive Surgery, Graduate School of Medicine, Wakayama Medical University, Wakayama, Wakayama, Japan.
Yasuhiro SakataDepartment of Plastic and Reconstructive Surgery, Graduate School of Medicine, Wakayama Medical University, Wakayama, Wakayama, Japan.
Satsuki TachibanaDepartment of Plastic and Reconstructive Surgery, Graduate School of Medicine, Wakayama Medical University, Wakayama, Wakayama, Japan.
Shinichi AsamuraDepartment of Plastic and Reconstructive Surgery, Graduate School of Medicine, Wakayama Medical University, Wakayama, Wakayama, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionBelow-knee amputation is functionally superior to above-knee amputation, and preservation of the knee joint is essential for optimal mobility. In below-knee amputation, muscular coverage of the tibial stump and proper shaping for prosthesis fitting are key factors in functional recovery. If primary muscle coverage is not feasible, free flap reconstruction may be required to achieve these goals. CASE PRESENTATION: A 23-year-old man presented with gait disturbance due to complete peroneal nerve palsy, tibial nerve palsy, and disuse atrophy of the gastrocnemius muscle following a traffic accident at the age of 19 years. MRI suggested necrosis of the gastrocnemius muscle, which made primary coverage of the tibial stump unfeasible. To avoid the poor functional prognosis associated with above-knee amputation and to preserve the knee joint, we preoperatively planned and successfully performed a below-knee amputation with free latissimus dorsi musculocutaneous flap reconstruction. The patient achieved independent ambulation and was able to run with a prosthesis 10 months postoperatively. Three years after surgery, he remains free of complications and reports good functional outcomes.

conclusionsThis case highlights that below-knee amputation with free flap reconstruction should be considered in functionally independent patients for the preservation of activities of daily living (ADL) and maintaining long-term QOL.

Indexed as

above-knee amputationbelow-knee amputationfree latissimus dorsi flapfree tissue flapsfunctional outcomegastrocnemius muscle necrosisstump reconstruction

Identifiers

PMID41798592
PMCPMC12962790

What OpenQuestion holds

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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.