Insights & Updates

A femoral head reduction osteotomy cuts the proximal femur into several pieces and puts them back in a new position. Three patient-specific guides slide over the same two parallel K-wires, so every step shares one reference, from the first cut to the pre-drilling of the fixation screws.

Through a posterior approach, part of the endopelvic surface of the sacrum lies beyond the reach of a saw blade. In this partial sacrectomy, planned on six cutting planes close to the S1 nerve roots, K-wires guided the osteotomy where the saw could not follow.

Every surgeon plans a knee arthroplasty differently: femur-first or tibia-first, measured resection or gap balancing, mechanical, kinematic, or functional alignment. 3D-Arthro Knee is built on a technique-agnostic architecture that adapts to each approach and implant system, rather than dictating one.

Resecting a bone tumor is only half the job when reconstruction follows. This case shows how patient-specific guides for the resection and the allograft share the same cutting geometry, and how a digital check on the graft caught a poor fit before it ever reached the operating room.

In total knee arthroplasty, personalization goes beyond implant selection: the varus/valgus angle of the distal resection and the femoral component's rotation are set to the patient before the surgeon enters the OR. That is where manufacturers differentiate — not only in implant geometry, but in the precision of the plan behind it. Here's how 3D-Side builds a planning platform shaped around your implant portfolio, from screen to manufacturing.

A partial scapula resection close to the acromion and coracoid process raises a question beyond the tumor itself: how much margin can be taken without compromising the bone segments the shoulder still needs to function. This case used a variable margin, 5 mm along the coracoid side, 10 mm along the two inferior planes, and a cutting guide shaped as a hook around the acromion to guide the resection precisely.

A cubitus valgus deformity rarely comes down to a single angle. This case combined a 20° medial closing correction with a 12° derotation, using a patient-specific guide system built around four K-wires that align only once both corrections are achieved together — closing an angle and a rotation in one motion.

For grade 2 chondrosarcoma, the surgical margin is the only oncological defense — chemotherapy and radiation offer no safety net. In this periacetabular case spanning the acetabular and pubic regions, a single patient-specific guide was built in two connected parts to execute three cutting planes with a 10 mm margin in one pass.

Discover how two patient-specific surgical guides were designed as geometric counterparts to achieve accurate distal tibia tumor resection and anatomical allograft reconstruction in a case led by Prof. François Sirveaux.