Detaillierte Beitrags-Information
| Beitragstitel | Clinical and Patient-Reported Short-Term Results after Customized Individually Made Total Knee Arthroplasty |
|---|---|
| Beitragscode | P068 |
| Autoren | |
| Präsentationsform | Poster |
| Themengebiete |
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| Abstract |
Introduction The purpose of this study was to assess the clinical and patient-reported outcome measures of a customized individually made total knee arthroplasty (CIM TKA). Methods Since January 2017, we prospectively collected clinical and patient-reported outcome measures from patients scheduled for CIM TKA (iTotal, ConforMIS, Inc., Bedford, MA). All surgeries were done by the senior author. We collected data before the surgery, 4 months and 12 months postoperatively. Outcome measures included the functional Knee Society Score (fKSS), the Knee injury and Osteoarthritis Outcome Score (KOOS), the Forgotten Joint Score (FJS), the EQ-5D-3L and patient satisfaction. We analyzed data with paired t-tests. Consistent with the indications for TKA, we exclude patients with compromised collateral ligaments or having a varus/valgus deformity > 15°. Results We analyzed data for 24 prostheses (21 patients, 12 male) with a mean patient age of 66.5 years (standard deviation [SD] 9.4, range 48 to 82 years). Anatomic alignment before the surgery was neutral (n = 4), varus (n = 12) and valgus (n = 8), mean range of motion (ROM) was 108° flexion (SD 15.3, range 70 to 130°). Complete follow-up data will be available in June 2019. Preliminary results of the first 14 prostheses (11 patients) showed 12 months after the surgery neutral alignment for all patients and a mean ROM of 130° flexion (p < 0.001). All scores improved significantly: fKSS from 46 to 99 points (p < 0.001), KOOS symptoms from 50 to 83 points (p=0.001), KOOS pain from 49 to 88 points (p < 0.001), KOOS daily living from 58 to 87 points (p < 0.001), KOOS sport from 18 to 73 points (p < 0.001), KOOS quality of life from 25 to 77 points (p < 0.001), FJS from 16 to 69 points (p < 0.001) and EQ-5D-3L from 0.579 to 0.877 (p < 0.001). Ten patients (91 %) were very satisfied or satisfied with the result of the surgery. One patient with a bilateral surgery was neutral and unsatisfied, respectively. There were no complications, besides one patient who required an arthrolysis following an arthrofibrosis due to a meanwhile healed complex regional pain syndrome. Conclusion The 12 months follow-up data collected on CIM TKA showed very good clinical and patient-reported results including a high patient satisfaction. Those results are at least as good as those reported from off-the-shelf implants. Future studies have to confirm those in long-term. |