Matthias U. Schafroth

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Even in current orthopaedic practice, some cases are still not suitable candidates for hip replacement and hip fusion remains the only option in these highly selected patients. In this retrospective study we describe the long-term clinical outcome, quality of life and radiological evaluation of all adjacent joints in a cohort of 47 hip fusions. The main(More)
The number of patients receiving a TKA during working life is increasing but little is known about the impact of TKA on patients' reintegration into the workplace. In this cross-sectional survey it was found that 173 of 480 responders worked within 2 years prior to surgery. Sixty-three percent of the working patients stopped within two weeks prior to(More)
UNLABELLED Anterior knee pain is one of the major short-term complaints after TKA. Since the introduction of the mobile-bearing TKA, numerous studies have attempted to confirm the theoretical advantages of a mobile-bearing TKA over a fixed-bearing TKA but most show little or no actual benefits. The concept of self-alignment for the mobile bearing suggests(More)
A cross-sectional study in two hospitals was performed on 807 patients with a primary Vanguard (Biomet) total knee Arthroplasty (TKA). The research questions addressed were (1) what are the two- and six year survival rates of the Vanguard, (2) what are the clinical outcome scores, (3) what are the findings at revision and (4) what are predictors for(More)
BACKGROUND Mucopolysaccharidosis type I (MPS-I) is a lysosomal storage disorder characterized by progressive multi-organ disease. The standard of care for patients with the severe phenotype (Hurler syndrome, MPS I-H) is early hematopoietic stem cell transplantation (HSCT). However, skeletal disease, including hip dysplasia, is almost invariably present in(More)
The aim of this study was to determine whether femoral neck preserving total hip arthroplasty would become less difficult and more efficient during the first 20 cases and to identify potential pitfalls during the introduction of this procedure. The difficulty and efficiency of the initial 20 procedures performed by four surgeons was prospectively determined(More)
Total knee arthroplasty (TKA) is increasingly being performed among working patients suffering from knee osteoarthritis. Two out of ten patients do not return to work (RTW) after TKA. Little evidence is available about these patients to guide clinicians. Therefore, this study investigates patients’ characteristics associated with no RTW. A multicenter(More)
BACKGROUND AND PURPOSE Minimally invasive surgery (MIS) for hip replacement is thought to minimize soft tissue damage. We determined the damage caused by 4 different MIS approaches as compared to a conventional lateral transgluteal approach. METHODS 5 surgeons each performed a total hip arthroplasty on 5 fresh frozen cadaver hips, using either a MIS(More)
PURPOSE to facilitate effective learning, feedback on performance during arthroscopic training is essential. Less attention has been paid to feedback on monitoring safe handling of delicate tissues such as meniscus. The goal is to measure in vitro probing forces of menisci and compare them with a theoretical maximum probing force (TMPF). METHOD menisci(More)
A coronal fracture of the distal femoral condyle is a rare entity and a nonunion even more so. The coronal fractures, also known as Hoffa fracture, more often involve the lateral than the medial condyle. Open reduction and internal fixation are the primary treatment of choice. We describe two cases of nonunion of a Hoffa fracture (one medial and one(More)