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Purpose Despite the high incidence of falls in patients with OA, few studies have explored whether falls risk is affected after patients undergo total knee arthroplasty (TKA). Therefore, the aim of this systematic review was to identify the extent of the effects of TKA on balance and incidence of falls by critically reviewing the available literature. Methods A systematic review of published literature sources was conducted up to March 2014. All studies assessing balance and incidence of falls after TKA (without physiotherapeutic intervention) were included. The methodological quality of each study was reviewed using the Critical Appraisal Skill Programme tool. Results Thirteen studies were included, comprising of ten cohort studies (Level II) and three studies with Level of evidence III. Conclusions Findings provide evidence that TKA improves significantly single-limb standing balance (~60%) and dynamic balance up to 1-year following surgery (Level of evidence II). Moreover, TKA influences positively fear of falling and incidence of falls by switching 54.2 % of pre-operative fallers to post-operative non-fallers (Level of evidence II–III). It is highlighted that knee extension strength, proprioception and symmetrization of postural strategies have not fully recovered post-TKA and influence balance performance. Clinically, these persistent deficits need to be mitigated by physiotherapy even before TKA takes place.

The purpose of this study is to present our experience with the technique, the problems and the potential pitfalls of arthroscopically assisted retrograde femoral nailing for supracondylar femoral fractures. In a 2-year period, nine patients (seven women, two men, average age 72 years) with supracondylar femoral fractures were treated in our department with a retrograde nailing under arthroscopic control. The mean operative time was 63.8 min (42-84 min) and the mean follow up period was 34.5 months (ranged 12-52). Solid union of the fracture was achieved in all patients without additional intervention, in 14 weeks (range 12-18). There was no malalignment (more than 5 degrees in any plane) or implant failure. In conclusion we believe that the arthroscopically assisted technique is a very good method to treat supracondylar fractures of the femur. It has very low morbidity since the knee is not opened through the operation, and the surgeon has the ability to inspect the joint for any additional damage. It is very helpful in multitrauma patients and in young patients, where the precision of the entry point is critical. However, we do not recommend the technique in intraarticular fractures because the reduction is difficult and the fixation is performed with safety only under direct vision.

A case of chondral lesion of the medial femoral condyle caused by a bioabsorbable Mitek RapidLoc meniscal repair implant is presented. Meniscal repair was quite successful, but migration of one of the implanted fixation devices resulted in chondral damage, 12 months postoperatively. All orthopaedic surgeons using these new devices should be aware of the possibility of chondral damage of the adjacent femoral condyles.