Evidence map›Paper›PMID 34617148›Full record

ArticleJournal of experimental orthopaedics2021

Muscle strength after the anterior cruciate ligament reconstruction via contralateral bone-tendon-bone autograft.

Takaki Sanada, Eiji Uchiyama, Hiroshi Iwaso, Atsushi Fukai

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of experimental orthopaedics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 6% 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

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.

  1. Pooled it
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  3. Article
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

4 authors at 3 institutions in 1 country.

Takaki SanadaDepartment of Sports Orthopaedic Surgery, Kanto Rosai Hospital, Kanto Rosai Hospital, 1-1 Kizuki Sumiyoshicho, Nakahara-Ku, Kawasaki, Kanagawa Prefecture, 211-8510, Japan. sanasana511@gmail.com.ORCID http://orcid.org/0000-0001-5423-0387
Eiji UchiyamaInanami Spine and Joint Hospital, Tokyo, Japan.
Hiroshi IwasoDepartment of Sports Orthopaedic Surgery, Kanto Rosai Hospital, Kanto Rosai Hospital, 1-1 Kizuki Sumiyoshicho, Nakahara-Ku, Kawasaki, Kanagawa Prefecture, 211-8510, Japan.
Atsushi FukaiFaculty of Medical Technology, Teikyo University, Tokyo, Japan.
Kansai Rosai Hospital · JPIto Hospital · JPTeikyo University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe anterior cruciate ligament (ACL) reconstruction via a contralateral bone-tendon-bone (C-BTB) autograft was introduced to encourage early return to sports. The purpose of this study is to evaluate whether primary contralateral BTB ACL reconstruction can be adapted for early return-to-sports modification by investigating the chronological changes of muscle strength after surgery.

methodsFifteen patients who had underwent C-BTB ACL reconstruction were compared with a matched group of 15 patients of ipsilateral BTB (I-BTB) ACL reconstruction. The clinical outcomes of the time of return-to-sports, Tegner activity scale and the rate of second ACL injuries, the tibial anterior translation measurement, and knee extension and flexion muscle strength were assessed.

resultsWithin 12 months after surgery, 14 of 15 patients from both groups returned to preinjury sports. The median time to return to sports after surgery was 6.5 months in the C-BTB group and 8.0 months in the I-BTB group (p = 0.021). No significant difference was noted with regard to the Tegner activity scale, reinjury rate or mean instrumental anterior tibial translation. The quadriceps muscle strength in the ACL-reconstructed knee compared with the opposite knee in both groups at 5 months after surgery was 120.6% in the C-BTB group and 70.0% in the I-BTB group (p < 0.001). However, the quadriceps muscle strength of the non-reconstructed limb, which instructed the graft harvested knee in the C-BTB and the intact knee in the I-BTB group, compared with that of the preoperative uninjured limb, was 74.5% in the C-BTB group and 118.7% in the I-BTB group (p = 0.0021) 5 months after surgery. Moreover, the quadriceps muscle strength of the reconstructed knee compared with the preoperative normal limb was 88.8% and 81.5% in the C-BTB and I-BTB groups, respectively (p = 0.38).

conclusionsACL reconstruction via the C-BTB autograft indicated better quadriceps muscle strength from early stage after surgery compared with I-BTB ACL reconstruction. However, the ostensible rapid symmetrical muscle strength recovery was attributed to strength deficits compared to the preoperative condition at the donor site limb and ACL-reconstructed limb. LEVEL OF EVIDENCE: Level: Level: 4.

Indexed as

Anterior cruciate ligamentAnterior cruciate ligament reconstructionBone-tendon-boneContralateralContralateral graftContralateral reconstructionQuadriceps muscleReturn to sports

Identifiers

PMID34617148
PMCPMC8494824
OpenAlexW3201804265

What OpenQuestion holds

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LicenceCC BY
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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.