Full versus surface tibial baseplate cementation in total knee arthroplasty

Orthopedic surgeons debate optimal cementation techniques for tibial components in total knee arthroplasty. Some advocate full cementation for improved fixation, while others suggest surface cementation may suffice. Prior research has shown mixed evidence on whether full cementation prevents aseptic loosening. This gap motivated a study to compare clinical outcomes between full and surface cementation. No prior work had resolved whether cementation extent affects long-term survivorship. Surgeons lack clear guidance on cementation strategy for tibial baseplates. This uncertainty drives ongoing clinical decisions. The need for evidence-based recommendations remains unmet. This paper contributes by evaluating 8-year outcomes of both techniques.

This investigation aimed to compare clinical outcomes of full versus surface cementation of tibial baseplates in primary total knee arthroplasty. The specific problem addressed is whether full cementation offers advantages over surface cementation. Surgeons need clarity on whether full cementation improves survivorship or clinical scores. The motivation stems from conflicting evidence in the literature. The study focused on 232 patients followed for an average of 5.6 years. The goal was to assess whether cementation technique influences outcomes like revision rates or Knee Society Scores. The researchers propose that cementation extent may not impact clinical results. This study provides data to inform surgical decision-making.

The study analyzed 232 patients who underwent primary TKA with either full or surface cementation of the tibial baseplate. Patients were followed for an average of 5.6 years to evaluate outcomes. Clinical assessments included Knee Society Scores, range of motion, and mechanical angles. Revision of either component served as the primary endpoint for survival analysis. Multivariate analysis was used to identify predictors of postoperative outcomes. The researchers compared survival rates between the two cementation groups. No randomization was employed, but baseline characteristics were analyzed. The study design allowed for evaluation of long-term clinical performance.

The 8-year cumulative survival rate was 97.1% for both groups combined. No significant difference in survival was found between full and surface cementation groups. Knee Society Scores, range of motion, and mechanical angles improved postoperatively in both groups. Multivariate analysis showed preoperative scores predicted postoperative outcomes. Follow-up duration negatively predicted postoperative Knee Society Scores. Cementation technique did not influence clinical outcomes. The study found no advantage to full cementation of the tibial baseplate. These findings suggest cementation extent may not affect long-term results.

The authors state that clinical outcomes did not differ between full and surface cementation techniques. They propose that full cementation of the tibial baseplate offers no benefit in primary TKA. The study found no association between cementation method and survivorship or clinical scores. The researchers suggest that cementing the keel may not be necessary. These findings challenge the assumption that full cementation improves outcomes. The authors acknowledge the need for longer-term follow-up. They propose that proper patient randomization is required to confirm these results. These conclusions align with the observed data from the 5.6-year follow-up period.