Abstract
Implant Movement Analysis (IMA), A New CT Based Technique for Diagnosis of Aseptic Loosening of Total Knee Arthroplasty
Highlights
Total knee arthroplasty is one of the most frequent surgical procedures and a very effective treatment option for advanced osteoarthritis [1]
Interpretation: Implant Movement Analysis (IMA) is a dynamic investigation where Computer Tomography (CT) is used during forced provocation of the knee and there by loosening between bone and implant can be more accurate diagnosed
40 consecutive patients were examined between January 2019 December 2020. 23 women and 17 men were included with a mean age at the time of IMA examination of 68 years. 37 patients were examined after primary Total Knee Arthroplasty (TKA) and 3 patients after a previous revision
Summary
Total knee arthroplasty is one of the most frequent surgical procedures and a very effective treatment option for advanced osteoarthritis [1]. Compared with primary TKA revision surgery has a higher number of perioperative and postoperative complications [2,5]. Diagnosing aseptic loosening is primarily done using clinical examinations and planar radiography. Aseptic loosening is the most common indication for revision surgery after Total Knee Arthroplasty (TKA). Implant Movement Analysis (IMA) is a newly introduced method of analysing uncertain aseptic loosening of orthopaedic implants. This is the first study where this technique is applied for analysis of potentially loose knee prosthesis. Our aim was to evaluate the role of IMA as a complementary method to planar radiography and clinical examination in diagnosing aseptic loosening of (TKA)
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