Evidence map›Paper›PMID 39419824›Full record

ArticleInternational orthopaedics2025

Weak hammering sounds are associated with postoperative subsidence in cementless total hip arthroplasty.

Yasuhiro Homma, Ken Tashiro, Ryuji Okuno, Masashi Unoki, Yuki Murakami, Taiji Watari, Tomonori Baba, Muneaki Ishijima

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Article in International orthopaedics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

8 authors.

Yasuhiro HommaDepartment of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan. yhomma@juntendo.ac.jp.
Ken TashiroDepartment of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan.
Ryuji OkunoDepartment of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan.
Masashi UnokiSchool of Information Science, Japan Advanced Institute of Science and Technology, Ishikawa, Japan.
Yuki MurakamiDepartment of Civil Engineering, National Institute of Technology, Nagaoka College, Niigata, Japan.
Taiji WatariDepartment of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan.
Tomonori BabaDepartment of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan.
Muneaki IshijimaDepartment of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan.

Funding

Japanese Society for Replacement Arthroplasty 2023-RP03Japan Society for the Promotion of Science JP23H03770
6 · The paper itself

Abstract

purposeThe aim of this study was to investigate the relationship between the hammering sound level and the presence of postoperative subsidence.

methodsThe last five hammering sounds during the final-size broaching procedure and during the real stem insertion were recorded and analysed in 95 patients who were operated on by one of seven surgeons using two implants (Trident cup, Accolade II, Stryker; G7 cup, Taperloc Complete Microplasty Stem, Zimmer Biomet). The maximum peak was semi-automatically identified and analysed to determine the maximum C-weighted sound pressure level (LCpeak) of each of the five hammering sounds and the equivalent continuous A-weighted sound pressure (LAeq) of the entire five-sound hammering procedure.

resultsAmong the 95 hips, 25 (26.3%) had ≥ 3 mm of postoperative subsidence. Therefore, 125 of 475 hammering sounds (LCpeak) and 25 of 95 hammering procedures (LAeq) in both the broaching procedure and stem insertion procedure were associated with postoperative subsidence. The hammering sound level in both the broaching and stem insertion procedures were significantly weaker in patients with postoperative subsidence than in those without subsidence. Among the seven surgeons, there was intra-surgeon and inter-surgeon heterogeneity with large variance regarding the sound levels. With univariate and multivariate analyses, the hammering sound level was independently associated with postoperative subsidence in the two models.

conclusionA weak hammering sound level was associated with postoperative subsidence in THA with a cementless stem. An objective evaluation of the hammering procedure might be useful to decrease the incidence of postoperative subsidence.

Indexed as

Arthroplasty, Replacement, HipHip JointHip ProsthesisPostoperative ComplicationsProsthesis FailureSoundAdultAgedAged, 80 and overFemaleHumansMaleMiddle AgedProsthesis DesignBioacoustics engineeringHammering sound pressurePostoperative subsidenceTotal hip arthroplasty

Identifiers

PMID39419824

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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.