[The medial closed-wedge osteotomy of the distal femur for the treatment of unicompartmental lateral osteoarthritis of the knee].

Objective: Shifting of the mechanical axis from the lateral to the medial compartment in patients with lateral osteoarthritis in combination with valgus deformity.

Indications: Osteoarthritis of the lateral compartment in combination with valgus deformity of the (distal) femur. Posttraumatic and congenital valgus deformities of the (distal) femur.

[The surgical treatment of chronic extension deficits of the knee].

Objective: Restoration of full knee extension in patients with chronic extension deficits, especially in posttraumatic and postoperative cases.

Indications: Chronic knee extension deficits of more than 10 degrees .

Contraindications: Local intraarticular problems caused by cyclops syndrome, graft hypertrophy or graft impingement after anterior cruciate ligament reconstruction (notch impingement).