Comprehensive analysis of total knee arthroplasty kinematics and functional recovery: Exploring full-body gait deviations in patients with knee osteoarthritis.

Total Knee Arthroplasty has well-established success in relieving knee pain and improving function but patients do not reach functional levels of control groups after surgery and 20% of patients remain unsatisfied. To understand the different patient profiles and develop patient-specific approaches of care, functional phenotypes based on knee biomechanics during gait have been evaluated. To widen the understanding of patient's function, it seems crucial to consider the gait devieations at the whole body level.

Clinical and objective gait outcomes remained stable seven years after total knee arthroplasty: A prospective longitudinal study of 28 patients.

Background: There is a paucity of data on mid to long-term gait outcomes after total knee arthroplasty. The aims of this longitudinal study were: to assess the evolution of both clinical and gait outcomes before and up to seven years after primary total knee arthroplasty (TKA) in a cohort of patients with knee osteoarthritis.

Methods: This study included 28 patients evaluated before and up to seven years after primary TKA with both gait analysis and patient reported outcomes; of these, 20 patients were evaluated one year after surgery as well.

History of previous surgery is associated with higher risk of revision after primary total knee arthroplasty: a cohort study from the Geneva Arthroplasty Registry.

Background and purpose - Prior to primary total knee arthroplasty (pTKA), 6-34% of patients have undergone surgical procedure(s) of their knee. We investigated whether history of previous surgeries influences the risk of revision of pTKA, the risk according to the type of previous surgery, and how previous surgery influences specific causes of revision and the time of revision.Patients and methods - This is a prospective cohort study from the Geneva Arthroplasty Registry.

Walking Speed and Maximal Knee Flexion During Gait After Total Knee Arthroplasty: Minimal Clinically Important Improvement Is Not Determinable; Patient Acceptable Symptom State Is Potentially Useful.

Background: Total knee arthroplasty (TKA) is the operation of choice in patients with end-stage knee osteoarthritis (OA). Up to 1 in 5 patients still encounter functional limitations after TKA, partly explaining patient dissatisfaction. Which gait ability to target after TKA remains unclear.

Total knee arthroplasty in achondroplasia without deformity correction: A case report with 11 years' follow-up.

Knee osteoarthritis in patients with achondroplasia is rare. Bowleg deformity is typical but corrective surgery is limited. Thus, primary total knee arthroplasty (TKA) might be challenging due to the particular anatomy.

Associations between gait analysis parameters and patient satisfaction one year following primary total knee arthroplasty.

Background: The purpose of this prospective study was to understand the relation between gait outcomes and patient satisfaction one year after total knee arthroplasty (TKA).

Methods: Seventy-nine patients were evaluated before and one year after TKA using clinical gait analysis. Specific gait outcomes were analyzed: gait speed, stance phase, range of motion (ROM) knee flexion and maximal knee flexion.

Gait Analysis 1 Year after Primary TKA: No Difference between Gap Balancing and Measured Resection Technique.

Mechanical alignment in total knee arthroplasty (TKA) can be achieved using dependent bone cuts. The hypothesis is that patients have a better balanced TKA, as a result. The aim of this study was to determine if this technique is superior to an independent bone cut technique in terms of gait parameters, patient-reported outcome measures (PROMs), and satisfaction assessed before surgery and at 1-year follow-up.

The impact of body-mass index on the frontal knee alignment estimation using three-dimensional reconstruction based on movement analysis.

Background: We evaluated the influence of the body-mass index (BMI) on the estimation of the static frontal knee alignment (FKA) using three-dimensional (3D) reconstruction method based on movement analysis.

Methods: Two-hundred nineteen knees (120 individuals with end-stage osteoarthritis) were analyzed. The validity of the 3D method was evaluated under comparison with a reference method based on weight bearing full-leg length radiography.

Influence of Body Mass Index on Sagittal Knee Range of Motion and Gait Speed Recovery 1-Year After Total Knee Arthroplasty.

Background: The purpose of this prospective study was to investigate the influence of body mass index (BMI) on gait parameters preoperatively and 1 year after total knee arthroplasty (TKA).

Methods: Seventy-nine patients were evaluated before and 1 year after TKA using clinical gait analysis. The gait velocity, the knee range of motion (ROM) during gait, their gains (difference between baseline and 1 year after TKA), the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), quality of life, and patient satisfaction were assessed.

Body mass and weight thresholds for increased prosthetic joint infection rates after primary total joint arthroplasty.

Background And Purpose: Obesity increases the risk of deep infection after total joint arthroplasty (TJA). Our objective was to determine whether there may be body mass index (BMI) and weight thresholds indicating a higher prosthetic joint infection rate.

Patients And Methods: We included all 9,061 primary hip and knee arthroplasties (mean age 70 years, 61% women) performed between March 1996 and December 2013 where the patient had received intravenous cefuroxime (1.

Influence of body mass index on revision rates after primary total knee arthroplasty.

Purpose: Studies demonstrate that revision rates after primary total knee arthroplasty (TKA) tend to be higher in obese patients. However, the existence of a body mass index (BMI) threshold remains unexplored.

Methods: We conducted a prospective cohort study of 2442 primary TKAs in 2035 patients (69.

Associations of diabetes mellitus with orthopaedic infections.

Background: Clinical experience suggests that a high proportion of orthopaedic infections occur in persons with diabetes.

Methods: We reviewed several databases of adult patients hospitalized for orthopaedic infections at Geneva University Hospitals from 2004 to 2014 and retrieved 2740 episodes of infection.

Results: Overall, diabetes was noted in the medical record for 659 (24%) of these cases.

Administration of antibiotic agents before intraoperative sampling in orthopedic infections alters culture results.

Unlabelled: Many physicians and surgeons think that prescribing antibiotics before intraoperative sampling does not alter the microbiological results.

Methods: Case-control study of adult patients hospitalized with orthopedic infections.

Results: Among 2740 episodes of orthopedic infections, 1167 (43%) had received antibiotic therapy before surgical sampling.

[Management of malignant bone tumors around the knee].

Primary bone tumors arise mostly around the knee. A treatment strategy issued from a multidisciplinary team is the key factor for an optimal management of such patients. Many durable options for reconstructing a functional limb are available, as an alternative to amputation, without lowering patients' survival.

No regeneration of the human acetabular labrum after excision to bone.

Background: Treatment options for a symptomatic, torn, irreparable, or completely ossified acetabular labrum are limited to either excision and/or reconstruction with grafts. In a previous animal model, regeneration of the acetabular labrum after excision to the bony rim has been shown. In humans, less is known about the potential of regeneration of the labrum.

Sports and Activity Levels After Open Surgical Treatment of Femoroacetabular Impingement.

Background: Several studies indicate that professional athletes can successfully return to competition after surgical treatment of femoroacetabular impingement (FAI). However, little is known about sports and activity levels after FAI surgery in the general patient population.

Hypothesis/purpose: The purpose was to determine the sports behavior, satisfaction with sports ability, and activity levels in a consecutive cohort of patients with FAI who were treated by surgical hip dislocation.

The Hip Sports Activity Scale (HSAS) for patients with femoroacetabular impingement.

Purpose: To develop and validate a sports activity scale for patients with a diagnosis of femoroacetabular impingement (FAI).


Methods: A nine level Hip Sports Activity Scale (HSAS) was constructed both in German and English languages. Fifty-nine consecutive patients undergoing surgical treatment for FAI at two centers in Switzerland and in the US completed a questionnaire set consisting of the HSAS, the University of California at Los Angeles (UCLA) activity scale and different hip joint-specific and generic outcome tools.

Midterm results of surgical hip dislocation for the treatment of femoroacetabular impingement.

Background: Surgical treatment of femoroacetabular impingement (FAI) includes both open and arthroscopic procedures. Encouraging results have been reported for the majority of patients after surgical hip dislocation; however, most of these reports were short term and included only small cohorts.

Purpose: To determine the results of surgical hip dislocation in a large cohort of FAI patients at a midterm follow-up.

Surgical hip dislocation for the treatment of femoroacetabular impingement in high-level athletes.

Background: Midterm outcome studies show that symptomatic femoroacetabular impingement (FAI) can be successfully treated by addressing the underlying pathomorphology with open or arthroscopic surgery. Although athletes may be vulnerable to hip injury from impingement, limited information is available regarding the results of open surgery in this group.

Hypothesis: High-level athletes with FAI can resume their sports after surgical hip dislocation and continue professional careers for a significant period.

The German Hip Outcome Score: validation in patients undergoing surgical treatment for femoroacetabular impingement.

Purpose: To cross-culturally adapt and validate the Hip Outcome Score (HOS) for use in German-speaking patients undergoing surgical treatment for femoroacetabular impingement.

Methods: After cross-cultural adaptation (German-language version of the HOS [HOS-D]), the following metric properties of the questionnaire were assessed in 85 consecutive patients (mean age, 33.4 years; 36 women) undergoing hip arthroscopy or surgical hip dislocation: feasibility, reliability, internal consistency, and construct validity (correlation with Western Ontario and McMaster Universities Arthritis Index, Oxford Hip Score, Short Form 12, and University of California, Los Angeles activity scale).

Late repair of abductor avulsion after the transgluteal approach for hip arthroplasty.

The abductor release sometimes does not heal after a transgluteal approach for hip arthroplasty. Factors influencing the success of subsequent repair are unclear. We used magnetic resonance imaging (MRI) to compare the condition of the gluteus medius with clinical outcome after late repair of abductor dehiscence in 12 total hip patients.