Andreas Fuchs1, Philip Häussermann2, Dirk Hömig3, Björn Gunnar Ochs4, Christof A Müller5, Peter Helwig6, Lukas Konstantinidis4. 1. Klinik für Orthopädie und Unfallchirurgie, Klinikum der Albert-Ludwigs-Universität Freiburg, Hugstetter Straße 55, 79016, Freiburg, Deutschland. andreas.fuchs@uniklinik-freiburg.de. 2. Klinik für Orthopädie und Unfallchirurgie, Sana Kliniken Leipziger Land, Borna, Deutschland. 3. Klinik für Orthopädie, Spezielle Orthopädische Chirurgie, Ortenau Klinikum Offenburg-Gengenbach, Gengenbach, Deutschland. 4. Klinik für Orthopädie und Unfallchirurgie, Klinikum der Albert-Ludwigs-Universität Freiburg, Hugstetter Straße 55, 79016, Freiburg, Deutschland. 5. Klinik für Unfall‑, Hand- und Orthopädische Chirurgie, Städtisches Klinikum Karlsruhe gGmbH, Karlsruhe, Deutschland. 6. Klinik für Orthopädie und Unfallchirurgie, Klinikum Heidenheim, Heidenheim, Deutschland.
Abstract
INTRODUCTION: As part of 10-year documentation using the Columbus system, the interim evaluation was carried out 5 years after implantation with a collection of clinical scores, evaluation of radiological imaging and collection of statistics concerning complications. METHODS: There was a multicentre prospective recruitment of consecutive patients with the indication of implantation of a surface replacement prosthesis (Columbus CR, Deep Dish fixed inlay). Preoperatively, clinical scores were recorded (KSS and Oxford score). Five years postoperatively a new evaluation of clinical scores, the range of motion (ROM) and a radiological check-up including full leg imaging under load was performed. During this period, detailed complication documentation was made. RESULTS: A total of 210 patients were recruited in five centres. 187 patients were available for examination 5 years after surgery. Cumulative KSS increased from 87.5 (±26.6) preoperatively to 170 (±29.1) 5 years postoperatively. The cumulative KSS improvement was 81.5 (±35.2) points and was highly significant (p < 0.0001; t‑test). The average functional improvement in the Oxford score between the preoperative and 5‑year follow-up was 21.7 (±8.8) points and was also highly significant (p < 0.0001). The ROM improved from 106.3° (±20.2) preoperatively to 114.0° (±12.1) 5 years postoperatively (p < 0.0001; t test). Five years after implantation, the average mechanical leg axis was 178.0° (±2.1). There was no clinically apparent or native radiologic visible aseptic loosening of the femoral or tibial joint component. There were 33 complications, but no implant-related complications such as inlay dislocation, material fracture or aseptic loosening. In total, 6 revision surgeries were performed during the follow-up period, which corresponds to a survival rate of 97.1% (CI 95%) for the implanted Columbus knee in the present patient collective for 5 years. CONCLUSION: The interim analysis at 5 years of long-term observation of the Columbus system provided good clinical and radiographic results.
INTRODUCTION: As part of 10-year documentation using the Columbus system, the interim evaluation was carried out 5 years after implantation with a collection of clinical scores, evaluation of radiological imaging and collection of statistics concerning complications. METHODS: There was a multicentre prospective recruitment of consecutive patients with the indication of implantation of a surface replacement prosthesis (Columbus CR, Deep Dish fixed inlay). Preoperatively, clinical scores were recorded (KSS and Oxford score). Five years postoperatively a new evaluation of clinical scores, the range of motion (ROM) and a radiological check-up including full leg imaging under load was performed. During this period, detailed complication documentation was made. RESULTS: A total of 210 patients were recruited in five centres. 187 patients were available for examination 5 years after surgery. Cumulative KSS increased from 87.5 (±26.6) preoperatively to 170 (±29.1) 5 years postoperatively. The cumulative KSS improvement was 81.5 (±35.2) points and was highly significant (p < 0.0001; t‑test). The average functional improvement in the Oxford score between the preoperative and 5‑year follow-up was 21.7 (±8.8) points and was also highly significant (p < 0.0001). The ROM improved from 106.3° (±20.2) preoperatively to 114.0° (±12.1) 5 years postoperatively (p < 0.0001; t test). Five years after implantation, the average mechanical leg axis was 178.0° (±2.1). There was no clinically apparent or native radiologic visible aseptic loosening of the femoral or tibial joint component. There were 33 complications, but no implant-related complications such as inlay dislocation, material fracture or aseptic loosening. In total, 6 revision surgeries were performed during the follow-up period, which corresponds to a survival rate of 97.1% (CI 95%) for the implanted Columbus knee in the present patient collective for 5 years. CONCLUSION: The interim analysis at 5 years of long-term observation of the Columbus system provided good clinical and radiographic results.
Entities:
Keywords:
Followup studies; Inlays; Joint replacement; Range of motion; Survival rate
Authors: S David Stulberg; Mark A Yaffe; Ritesh R Shah; Susan E Gall-Sims; Nicholas Palmese; Michael A Granieri; Philip H Schmidt Journal: Orthopedics Date: 2008-10 Impact factor: 1.390
Authors: Andreas Fuchs; Philip Häussermann; Dirk Hömig; Björn Gunnar Ochs; Tim Klopfer; Christof A Müller; Peter Helwig; Lukas Konstantinidis Journal: Arch Orthop Trauma Surg Date: 2021-09-09 Impact factor: 2.928