Why knee-close corrective osteotomy remains relevant in adult alignment surgery
This article outlines the indications and technique of osteotomies performed near the knee in adults (proximal tibia or distal femur) with malalignment and early compartmental degeneration. It emphasizes leg-axis correction as a joint-preserving alternative to knee arthroplasty in younger/more active patients.
How the authors describe planning, surgical technique and post-operative protocol
Key steps described include:
- Full-length standing radiographs to assess mechanical and anatomical axes (HKA, mLDFA, MPTA) and determine the locus of deformity (femur vs tibia).
- Choice between opening-wedge or closing-wedge osteotomy depending on varus/valgus and bone geometry.
- Use of stable fixation (locking plates) and post-operative protocol including protected weight-bearing for 4-6 weeks.
- The objective is to shift load away from the damaged compartment, relieve pain, delay progression and preserve the joint.
What outcomes, risks and long-term considerations are shown
- The authors report that knee-close osteotomies can provide durable symptom relief and delay the need for knee replacement in appropriately selected patients.
- Common risks include non-union, loss of correction, hinge fracture, secondary deformity (joint line obliquity) and progression of degeneration in other compartments.
- The importance of correct osteotomy level (at deformity origin) is emphasised, because correcting at a wrong site can compromise joint line orientation and lead to suboptimal biomechanics.
How this influences surgical decision-making in adult patients
Surgeons should evaluate not just the presence of varus or valgus, but the specific anatomical site of the deformity (tibia, femur or both) to choose the correct osteotomy site. Ensuring proper planning, stable fixation and post-operative rehabilitation is essential for durability and joint preservation. Consideration of patient age, activity level, cartilage status, patient expectations and alternative options (e.g., arthroplasty) is also mandatory.
Key take-away messages
- Osteotomies near the knee remain a vital option for younger/more active adults with malalignment and early compartment damage.
- Precise pre-operative analysis of deformity origin, surgical execution and fixation determine success.
- Proper execution may delay or avoid knee replacement, but hinge management, alignment maintenance and joint-line preservation are critical.
- Long-term follow-up and careful patient selection remain essential to achieve good results.
Link to full paper: Kniegelenknahe Umstellungsosteotomie im Erwachsenenalter
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