Modified cranial closing wedge ostectomy in 169 stifles: considerations on potential factors associated with construct failures.

CCWO construct failure factors remain unclear; consider plate sizing and positioning carefully.

This retrospective study evaluated 169 stifles undergoing modified cranial closing wedge ostectomy (CCWO) for cranial cruciate ligament disease, with a focus on identifying risk factors for construct failure. The overall major complication rate was 12% with an 8% re-operation rate. A case-control analysis compared 10 construct failure cases with 52 weight and plate-matched controls. Variables assessed included plate size, plate position, proximal tibial flare, adjunctive fixation use, and tibial plateau angles (pre- and post-operative). Surprisingly, no statistically significant differences were found between construct failure and control groups across any measured variables. However, the authors noted that larger plates were consistently used compared to recommendations for tibial plateau levelling osteotomy. The authors acknowledge the lack of significant findings likely represents a Type II error rather than true absence of risk factors. Despite statistical non-significance, the authors recommend clinicians consider plate size selection, plate positioning, proximal tibial anatomy, and adjunctive fixation when planning CCWO procedures.

This summary was distilled by AI and may occasionally misinterpret data. Confirm critical details with the primary literature before clinical application.