ConMed Linvatec 8731 PINN-ACL Cruciate Guide

ConMed Linvatec 8731 PINN-ACL Cruciate Guide

• Model: 8731

The 8731 PINN‑ACL Cruciate Guide is an arthroscopic surgical instrument intended for use in anterior cruciate ligament (ACL) reconstruction. As part of the PINN‑ACL system, its role is to guide the placement and orientation of guide pins and tunnels in the tibia or femur, enabling precise graft positioning. Its design likely embodies the same features seen in related PINN‑ACL tibial/femoral guides—adjustability of angle, graduated sleeves, and a locking mechanism to maintain alignment during drilling.

In surgical application, a guide like the 8731 would be aligned to the anatomical “footprint” of the ACL insertion. The surgeon would set the desired angle (e.g. for tibial tunnels, between 35°–60°), lock the guide, advance the pin or sleeve, and then drill the bone tunnel. The graduated sleeve helps in determining the correct depth before committing to full drilling, helping to avoid overpenetration or misalignment. Because precision is critical in ACL reconstruction to restore knee kinematics and minimize graft stress, such guides play a pivotal role in reproducibility and safety.

From a user experience standpoint, the PINN‑ACL guides are crafted to provide tactile feedback, modular adjustment, and stable fixation. The integration of a collet locking mechanism allows the surgeon to fine‑tune and secure the guide geometry without slippage. In complex anatomical cases—such as small knees or variant geometry—the adjustability built into the system helps accommodate those variations. Although the 8731’s detailed mechanical and material properties are not publicly documented, it likely shares the robustness and functional integrity of the broader ConMed Linvatec ACL instrumentation.