Transcutaneous osseointegration prosthetic systems (TOPS) offer a stable skeletal attachment for artificial limbs post-extremity amputation, serving as an alternative to socket attachment. Press-fit osseointegration implants (OI) utilized in TOPS consistently enhance quality of life and mobility for amputees, particularly those experiencing socket-related issues. Despite notable benefits, late complications such as infection and implant loosening pose challenges unique to TOPS due to their percutaneous nature. Recent studies indicate a low risk of implant failure but highlight the prevalence of minor soft tissue complications. Successful TOPS implementation is hypothesized to rely on early osseointegration and effective drainage of fluid discharge from the stoma. Factors influencing implant survival encompass implant characteristics, bone quality, and host factors. Longitudinal follow-up data reveal changes in periprosthetic bone and soft tissue conditions over time, necessitating ongoing clinical management. Distal bone resorption, evidenced by X‑ray, may result from stress shielding or local osteitis, leading to stoma-related complaints and jeopardizing implant survival. Understanding these dynamics is crucial for optimizing TOPS outcomes and addressing evolving patient needs.

Lengthening of the patellar tendon to normalize patellar height and improve knee flexion deficits.

Removal of a transcutaneous osseintegrated endo-fix stem (ESKA Orthopaedic, Lübeck, Germany) following a fatigue fracture of the implant, whilst protecting the residual femur bone to allow transcutaneous osseointegrated prosthesis system (TOPS) reimplantation.

Treatment with transcutaneous osseointegrated prosthesis systems (TOPS) for short femoral amputation stumps aims to restore independent walking ability after proximal femoral amputation by direct bone-guided prosthesis anchorage. This cannot be safely achieved with conventional socket prostheses due to the mechanically inadequate socket contact surface.

We present the two-incision minimally invasive (TIMI) approach for the treatment of anterior acetabular fractures.

Minimally invasive percutaneous techniques are used to stabilize fractures of the anterior pelvic ring. Stabilization of the fracture facilitates early mobilization and rehabilitation, while percutaneous techniques reduce complications such as infection and bleeding.

Extraction of cancellous bone from the distal radius for reconstructive procedures on the hand.

To maximize local tumor control, stabilize affected bones, and preserve or replace joints with minimal interventional burden, thereby enhancing quality of life for empowered living.

Peripheral nerve lesions often lead to significant and permanent loss of motor and sensory function. The aim of peripheral nerve grafting is to bridge nerve defects.

Patellar dislocations are a common occurrence in orthopedic practice, often accompanied by osteochondral fractures of the retropatellar cartilage surface, known as flake fractures, in up to 58% of cases. The parachute technique represents a simple and cost-effective surgical option aimed at restoring osteochondral integration and preserving native cartilage.

Anastomosis of two vessels by end-to-end or end-to-side suturing to create an uninterrupted blood flow between the two vessels.

Mechanical anastomoses of blood vessels represent a major advance in modern surgery. Highly specialized instruments ensure the precise connection of blood vessels, enabling the immediate restoration of blood flow. Ring coupler systems for venous anastomoses, in particular, have proven themselves in clinical practice due to their convenience and reliability and are now an indispensable part of surgical routines.

Substantial nerve lesions almost always lead to persistent functional deficits, even with ideal treatment. Nerve lesions commonly occur in young patients, are often part of complex injuries, and are repeatedly diagnosed and treated with delay. Functional outcome crucially depends on early and adequate treatment. The aim of surgical treatment is a precise and tension-free microsurgical restoration of nerve continuity in a vital and healthy tissue environment. Adequate microsurgical treatment with differentiated postoperative treatment can result in an excellent clinical outcome, even after a delayed diagnosis.

Presentation and description of percutaneous sacroiliac (SI) screw fixation with the use of a 3D robot-assisted image-guided navigation system and the clinical outcome of this technique.

Minimally invasive stabilization of non- and minimally displaced acetabular fractures using intraoperative, robot-assisted three-dimensional (3D) imaging and a navigation system.

Realignment of the hindfoot by talonavicular arthrodesis.

Simultaneous implantation of a TOPS (transcutaneous osseointegrated prosthetic system) and THA (total hip arthroplasty) or staged approach.

Osteosynthesis in dislocated diametaphyseal forearm fractures is intended to restore anatomy and function. Antegrade intramedullary nailing in the radius is used to restore length, rotation, and axis within the age-specific correction limits. Sufficient stability ensures early functional postoperative treatment without load.

The surgical goal is the arthroscopically assisted, closed reduction, and suture osteosynthesis of fractures of the tibial eminence in children and adolescents.