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Updated: Feb 10, 2026
09:31
Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty
Published on: February 27, 2018
12.5K
[USE OF SMARTPHONE IN ACETABULAR COMPONENT ANGLE MEASUREMENT DURING TOTAL HIP ARTHROPLASTY]
Jing Wang1, Rui Xu2, Xuewen Kang1
1Department of Orthopedics, Orthopedics Key Laboratory of Gansu Province, Lanzhou University Second Hospital, Lanzhou Gansu, 730030, P. R. China.
Summary
Smartphones accurately measure acetabular component angles during total hip arthroplasty (THA), offering a convenient alternative to traditional methods. This study found no significant difference between smartphone and PACS measurements, confirming its utility in THA surgery.
Area of Science:
- Orthopedic Surgery
- Medical Device Technology
- Surgical Navigation
Background:
- Accurate placement of the acetabular component is crucial for successful total hip arthroplasty (THA).
- Traditional methods for measuring component angles can be time-consuming and require specialized equipment.
- The integration of mobile technology offers potential for improved intraoperative assessment.
Purpose of the Study:
- To evaluate the accuracy and reliability of using smartphone applications to measure acetabular abduction and anteversion angles during THA.
- To compare smartphone measurements with standard Picture Archiving and Communication Systems (PACS) measurements.
- To assess the intra-observer variability of smartphone-based angle measurements.
Main Methods:
- Acetabular abduction and anteversion angles were measured in 50 THA patients using a smartphone during surgery.
- Measurements were compared to those obtained from X-ray films using PACS one week post-operation.
- Intraclass correlation coefficient (ICC) was used to assess agreement, and the Mann-Whitney U-test analyzed differences.
Main Results:
- A high ICC of 0.84 was observed between smartphone and PACS measurements.
- No statistically significant differences were found between the two measurement methods for both abduction and anteversion angles.
- The smartphone proved to be a convenient tool, with 44 out of 50 cases falling within the safe zone for component angles.
Conclusions:
- Smartphones provide a convenient and accurate tool for measuring acetabular component angles in total hip arthroplasty.
- This technology can potentially streamline surgical workflow and improve intraoperative decision-making.
- Further research may explore broader applications in orthopedic surgery.
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