Arthroscopic modified Broström operation versus open reconstruction with local periosteal flap in chronic ankle instability.

Introduction: The modified Broström operation (MBO) has found widespread use in the therapy of lateral chronic ankle instability (CAI). However, alternative surgical techniques like the open reconstruction using a periosteal flap (RPF) are still an important part of the surgical treatment of lateral CAI. Both procedures differ in terms of the reconstruction material used and the surgical procedure.

Evaluation of braking performances of patients with osteoarthritis of the knee or hip: Are there alternatives to a brake simulator?

Objective: This study aims to develop and evaluate a simple tool for daily practice that might allow a rough estimate of individual braking performance (brake response time, BRT) of patients with osteoarthritis or those with arthroplasty of the knee or hip.

Methods: In this cross-sectional study, we examined 162 patients (72 men, 90 women; mean age = 64±12.8 years) who suffered from osteoarthritis of the knee (n=45) or hip (n=64) or who underwent a total hip (n=37) or knee (n=16) arthroplasty.

Estimating Braking Performance in Osteoarthritis of the Knee or Hip with a Reaction Timer.

Objective: To investigate if testing in a brake simulator can be replaced by a simple reaction timer setup imitating the ergonomic conditions of emergency braking when evaluating the ability to drive in patients with musculoskeletal problems of the lower extremities.

Methods: A cross-sectional survey was performed in the Department of Orthopaedic Surgery in our University Hospital from October 2014 until May 2015. Patients attending our department with either osteoarthritis or arthroplasty of the knee or hip were asked to participate in the study if they had a valid driving license.

INFLUENCE OF AGE ON PARAMETERS FOR FEMOROACETABULAR IMPINGEMENT AND HIP DYSPLASIA IN X-RAYS.

Objective: While several radiographic parameters have been established to describe the geometry and pathology of the hip, their reference values and clinical significance remain a matter of dispute. The present study tests the hypothesis that age has a relevant impact on radiographic hip parameters.

Method: Pelvic antero-posterior views were measured for CE angle, Sharp's angle, acetabular depth-to-width ratio, femoral head extrusion index, roof obliquity, caput-collum-diaphyseal (CCD) angle, and Murray's femoral head ratio, and the values obtained were correlated with age.

Influence of spine surgery on the ability to perform an emergency stop while driving a car.

Background: Spinal surgeries have strongly increased in number over the past decade. The question of when it is safe to resume driving is thereby one the most frequently asked questions that patients ask of their treating physician.

Objective: The aim of this study was to assess braking performance before and after spine surgery.

Radiographic Hip or Knee Osteoarthritis and the Ability to Drive.

The question of whether patients with musculoskeletal disorders are fit to drive is of paramount importance for them and frequently is directed to the treating orthopedic specialist. Although perioperative braking performance has been increasingly investigated in recent years, scientific data on braking safety in individuals with osteoarthritis (OA) are scarce. This study analyzed the braking performance of 158 patients with OA of the right or left knee or hip and compared the results with radiographic OA grading according to the Kellgren-Lawrence classification scale.

Practicability for robot-aided measurement of knee stability in-vivo.

Background: For the analysis of different treatments concerning anterior cruciate ligament (ACL) rupture, objective methods for the quantification of knee stability are needed. Therefore, a new method for in-vivo stability measurement using a robotic testing system should be developed and evaluated.

Methods: A new experimental setting was developed using a KUKA robot and a custom-made chair for the positioning and fixation of the participants.

How do ankle braces affect braking performance? An experimental driving simulation study with healthy volunteers.

Background: Fitness to drive a car has been investigated increasingly over recent years. However, most research has focussed on perioperative driving performance, and few data are available on how orthoses influence the ability to perform an emergency stop. This study investigated the effect of 4 common ankle braces (Kallassy, CaligaLoc, Air-Stirrup, ASO) on reaction time, foot transfer time (together: brake response time) and brake force.

Quality of Life, Physical and Mental Status and Contentment of Patients with Localized Soft Tissue or Bone Sarcoma: A Questionnaire Analysis.

Extremity soft tissue and bone sarcomas represent a rare group of bone and connective tissue cancers. In literature, there is little information about psycho-emotional status and impact on quality of life after the diagnosis and treatment of this kind of tumors. The aim of this survey was to define the profile of the patients at risk and their need for psychooncological care.

Brake response time is significantly impaired after total knee arthroplasty: investigation of performing an emergency stop while driving a car.

Objective: The objective of this study was to investigate whether total knee arthroplasty (TKA) impairs the ability to perform an emergency stop.

Design: An automatic transmission brake simulator was developed to evaluate total brake response time. A prospective repeated-measures design was used.

The Effects of Hip and Spine Orthoses on Braking Parameters: A Simulated Study With Healthy Subjects.

Background: Although a person's fitness to drive has gained more attention over the past few years, investigations have focused mainly on postsurgical (eg, hip arthroplasty) driving performance. Few data are available on how orthoses affect the ability to perform an emergency stop.

Objective: To determine whether common lumbar and hip orthoses impair driving performance by increasing brake response time and weakening brake force (BF).

Driving and emergency braking may be impaired after tibiotalar joint arthrodesis: conclusions after a case series.

Purpose: To assess whether reaction time (RT) and movement time (MT), as the two components of the total brake response time (TBRT) and brake force (BF) are different in patients with a foot joint arthrodesis in comparison to controls.

Methods: The study was a comparative case series in a driving simulator under realistic driving conditions. Mobile patients without a walker, ≥6 months after surgery who were driving a car and had no neurological co-morbidity, knee or hip joint prosthesis were included in the study.

Tendinopathy of the achilles tendon: volume assessed by automated contour detection in submillimeter isotropic 3-dimensional magnetic resonance imaging data sets recorded at a field strength of 3 T.

Objective: This prospective study assesses volume changes of the Achilles tendon in case of chronic tendinopathy (TEN), using an automated contour detection algorithm in submillimeter isotropic 3-dimensional magnetic resonance imaging data sets, recorded at 3 T.

Methods: Forty-one subjects (median age, 40 years; range, 19-68 years) were included in this prospective study and underwent nonenhanced magnetic resonance imaging of both Achilles tendons at 3 T, deploying a T2-weighted 3-dimensional Fast-Spin-Echo sequence with submillimeter resolution of 0.8 mm.

Radiographic signs for detection of femoroacetabular impingement and hip dysplasia should be carefully used in patients with osteoarthritis of the hip.

Background: During the last years, terms like acetabular retroversion, excessive overcoverage, and abnormal head-neck-junction with the so called "pistol-grip-deformity" has been added to the classical description of hip dysplasia. These anatomical changes could lead to a femoroacetabular impingement (FAI). Both kinds of FAI has been indentified as a main reason for hip pain and progressive degenerative changes leading to early osteoarthritis of the hip.

Influence of left- and right-side total hip arthroplasty on the ability to perform an emergency stop while driving a car.

Objective: To show the possible effect of left- and right-side total hip arthroplasty (THA) on the ability to perform an emergency stop when driving a car.

Design: Inception cohort.

Setting: A driving simulator using an actual car cabin, specifically developed for the experiment, was used for testing driving ability.

Osteoarthritis of the knee or hip significantly impairs driving ability (cross-sectional survey).

Background: Advising patients about when they can drive after surgery is common practice after arthroplasty of the knee or hip. In the literature, the preoperative braking performance values of the patients are frequently taken as the "safe" landmark. We hypothesised that osteoarthritis (OA), the most frequent reason for arthroplasty, already compromises the ability to perform an emergency stop.

Short-term exercise-induced changes in hydration state of healthy Achilles tendons can be visualized by effects of off-resonant radiofrequency saturation in a three-dimensional ultrashort echo time MRI sequence applied at 3 Tesla.

Purpose: Off-resonant RF saturation influences signal intensity dependent on free and bound water fractions as well as the macromolecular content. The extent of interaction between these compartments can be evaluated by using the off-resonance saturation ratio (OSR). Combined with UTE sequences quantification of OSR even in tendinous tissues with extremely fast signal decay is possible.

Antibacterial potency of V.A.C. GranuFoam Silver(®) Dressing.

Introduction: V.A.C.

Proximal metatarsal osteotomy for hallux valgus: an audit of radiologic outcome after single screw fixation and full postoperative weightbearing.

Background: Proximal metatarsal osteotomy combined with a distal soft-tissue procedure is a common treatment for moderate to severe hallux valgus. Secure stabilisation of the metatarsal osteotomy is necessary to avoid complications such as delayed union, nonunion or malunion as well as loss of correction. The aim of this study was to report our results using a single screw for stabilisation of the osteotomy.

Oncological outcome and prognostic factors in the therapy of soft tissue sarcoma of the extremities.

Uniform conclusions about therapeutic concepts and survival time of bone and soft tissue sarcoma patients are difficult due to the heterogeneity of histological subtypes as well as the different responses to neoadjuvant therapy. The subject of this retrospective study was the analysis of tumour free survival, risk and prognostic factors of sarcoma patients treated by limb sparing techniques or amputation. We included 118 patients with soft tissue sarcoma of the extremities treated primarily or secondarily at our institution between 1990 and 2008 with a minimum follow-up of 12 months.

Cartilage surface characterization by frictional dissipated energy during axially loaded knee flexion--an in vitro sheep model.

Cartilage defects and osteoarthritis (OA) have an increasing incidence in the aging population. A wide range of treatment options are available. The introduction of each new treatment requires controlled, evidence based, histological and biomechanical studies to identify potential benefits.

The influence of ibandronate treatment on bone density and biochemical bone markers in patients with osteogenesis imperfecta.

Osteogenesis imperfecta (OI) is characterized by different signs including increased bone fragility, short stature, blue sclera, abnormal tooth growth and often secondary immobility. No curative therapy has been found for this rare disease up to now, and different pharmacological substances have been tried as treatment for severe forms of OI. Promising results were seen with intravenous bisphosphonates in the treatment of patients with OI.

No red cell alloimmunization or change of clinical outcome after using fresh frozen cancellous allograft bone for acetabular reconstruction in revision hip arthroplasty: a follow up study.

Background: Possible immunization to blood group or other antigens and subsequent inhibition of remodeling or incorporation after use of untreated human bone allograft was described previously. This study presents the immunological, clinical and radiological results of 30 patients with acetabular revisions using fresh frozen non-irradiated bone allograft.

Methods: AB0-incompatible (donor-recipient) bone transplantation was performed in 22 cases, Rh(D) incompatible transplantation in 6 cases.

The development of whole blood titanium levels after instrumented spinal fusion - is there a correlation between the number of fused segments and titanium levels?

Background: Most modern spinal implants contain titanium and remain in the patient's body permanently. Local and systemic effects such as tissue necrosis, osteolysis and malignant cell transformation caused by implants have been described. Increasing tissue concentration and whole blood levels of ions are necessary before a disease caused by a contaminant develops.

Fibrin sealants in orthopaedic surgery: practical experiences derived from use of QUIXIL® in total knee arthroplasty.

Background: Total knee arthroplasty is associated with a significant postoperative blood loss even without any form of perioperative anticoagulation.

Methods: The potential role of QUIXIL(®), a fibrin sealant used in orthopaedic surgery to control blood loss and avoid blood transfusions in patients undergoing total knee arthroplasty was evaluated in a prospective randomized trial with twenty-four patients diagnosed with primary osteoarthritis of the knee.

Results: Results showed that application of 2 ml QUIXIL(®) adds costs to treatment without reducing the number of transfused red blood cell counts and postoperative haemoglobin loss.