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Acoustic pattern evaluation during cementless hip arthroplasty surgery may be a new method for predicting
Itaru Morohashi1, Hideaki Iwase2, Akio Kanda1
1Department of Orthopaedic Surgery, Juntendo University Shizuoka Hospital, 1129 Nagaoka, Izunokuni, Shizuoka 410-2295, Japan.
SICOT-J
|February 11, 2017
Summary
Objective sound analysis during cementless stem implantation in total hip arthroplasty (THA) can identify patterns linked to complications. This acoustic evaluation may improve surgical outcomes by predicting intraoperative fractures and subsidence.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
- Surgical Outcomes Research
Background:
- Assessing cementless stem implantation in total hip arthroplasty (THA) relies on subjective surgeon judgment, leading to potential bias.
- Objective methods are needed to evaluate stem insertion and its association with complications like intraoperative fracture and subsidence.
Purpose of the Study:
- To objectively quantify the sound produced during cementless stem insertion in THA.
- To investigate the correlation between quantified sound patterns and the occurrence of intraoperative fracture and subsidence.
Main Methods:
- Sound data were collected during stem insertion in 71 THA procedures.
- Acoustic signals were analyzed to identify distinct sound patterns (Pattern A and Pattern B).
- The relationship between sound patterns and adverse events (fracture, subsidence) was statistically analyzed.
Main Results:
- Two distinct sound patterns (A and B) were identified during stem implantation.
- Significant differences in sound characteristics (peak value at specific frequencies) were observed between patterns.
- Intraoperative fractures and subsidence were significantly less frequent in patients with Pattern A compared to Pattern B (p=0.004).
Conclusions:
- Sound generated during cementless stem insertion can be objectively quantified.
- Identified sound patterns are associated with surgical complications, offering potential for improved intraoperative assessment.
