Antibiotic prophylaxis before tissue biopsy has no effect on culture results in presumed aseptic revision total hip arthroplasty.

: Antibiotic prophylaxis (AP) is considered to be the gold standard for revision total hip arthroplasty (R-THA) due to the high incidence of prosthetic joint infection (PJI). To diagnose PJI, intraoperative tissue biopsies for culture are of particular importance. However, antibiotic interference could theoretically lead to less reliable culture results.

Between hope and fear: A qualitative study on perioperative experiences and coping of patients after lumbar fusion surgery.

Objective: Recovery following lumbar fusion surgery is frequently accompanied by post-operative pain, and patients often continue to experience some level of chronic pain. There is a scarcity of qualitative research focusing on patient experiences regarding lumbar fusion surgery. This study aims to clarify how lumbar fusion surgery patients experience the perioperative period; their hopes, their post-operative pain experiences, their fluctuating physical condition and accompanying emotions.

Less Postoperative Restrictions Following Total Hip Arthroplasty With Use of a Posterolateral Approach: A Prospective, Randomized, Noninferiority Trial.

Background: Patient restrictions are prescribed after total hip arthroplasty (THA) to ensure proper healing and prevent early dislocation. It has been suggested that less or nonrestrictive protocols following THA do not lead to higher dislocation rates. Nonetheless, restrictions are still widely used.

Cancellous and cortical bone mineral density around an elastic press-fit socket in total hip arthroplasty.

Background and purpose - The acetabular component has remained the weakest link in hip arthroplasty for achievement of long-term survival. One of the possible explanatory factors for acetabular failure has been acetabular stress shielding. For this, we investigated the effects of a cementless elastic socket on acetabular bone mineral density (BMD).

CT-based quantification of bone stock in large head metal-on-metal unilateral total hip replacements.

Purpose: To explore ipsilateral and contralateral acetabular roof bone stock density in unilateral large head MoM THA whether there is a significant lower acetabular bone stock in the hip with a metal-on-metal (MoM) total hip replacement compared to the contralateral side. Second part of this study is to examine if there are any associates with regard to potential bone stock density difference.

Materials & Methods: A database of 317 patients with unilateral metal-on-metal (MoM) total hip replacements was set up retrospectively for this study.

Anterior cruciate ligament- and hamstring tendon-derived cells: in vitro differential properties of cells involved in ACL reconstruction.

Anterior cruciate ligament (ACL) reconstruction involves the replacement of the torn ligament with a new graft, often a hamstring tendon (HT). Described as similar, the ACL and HT have intrinsic differences related to their distinct anatomical locations. From a cellular perspective, identifying these differences represents a step forward in the search for new cues that enhance recovery after the reconstruction.

Assessment of asymmetric leg loading before and after total hip arthroplasty using instrumented shoes.

Background: Total hip arthroplasty is a successful surgical treatment in patients with osteoarthritis of the hip. Different questionnaires are used by the clinicians to assess functional capacity and the patient's pain, despite these questionnaires are known to be subjective. Furthermore, many studies agree that kinematic and kinetic parameters are crucial to evaluate and to provide useful information about the patient's evolution for clinicians and rehabilitation specialists.

Preoperative ambulatory measurement of asymmetric leg loading during sit-to-stand in hip arthroplasty patients.

Total hip arthroplasty (TGA) is a successful surgical procedure to treat patients with hip osteoarthritis. Clinicians use different questionnaires to evaluate these patients. Gait velocity and these questionnaires; usually show significant improvement after TGA .

Pre-operative ambulatory measurement of asymmetric lower limb loading during walking in total hip arthroplasty patients.

Background: Total hip arthroplasty is a successful surgical procedure to treat hip osteoarthritis. Clinicians use different questionnaires to assess the patient's pain and functional capacity. Furthermore, they assess the quality of gait in a very global way.

Periacetabular bone mineral density changes after resurfacing hip arthroplasty versus conventional total hip arthroplasty. A randomized controlled DEXA study.

A randomized controlled trial was performed to evaluate acetabular bone mineral density (BMD) changes after hip resurfacing (RHA) versus an established conventional total hip arthroplasty (THA). A total of 71 patients were allocated randomly to receive either an RHA press-fit cobalt-chromium cup (n=38) or a THA with a threaded titanium cup and polyethylene-metal-inlay insert (n=33). The BMD in five separate periacetabular regions of interest (ROI) was prospectively quantified preoperative until 24 months.

A cementless, elastic press-fit socket with and without screws.

Background: The acetabular component has remained the weakest link in hip arthroplasty regarding achievement of long-term survival. Primary fixation is a prerequisite for long-term performance. For this reason, we investigated the stability of a unique cementless titanium-coated elastic monoblock socket and the influence of supplementary screw fixation.

Is there evidence for a superior method of socket fixation in hip arthroplasty? A systematic review.

Purpose: Total hip arthroplasty has been a very succesful orthopaedic procedure. The optimal fixation method of the acetabular component however, has not yet been defined.

Methods: We performed a systematic review using the Medline and Embase databases to find evidence for the superiority of cemented or cementless acetabular components on short- and long-term clinical and radiological parameters.

A cementless elastic monoblock socket in young patients: a ten to 18-year clinical and radiological follow-up.

The survival of acetabular components depends on several factors: wear, osteolysis and septic or aseptic loosening. Osteolysis seems to be the main cause for concern in cementless arthroplasties. Acetabular osteolysis results from particle debris and segmental unloading of acetabular bone by rigid sockets.

Long-term survivorship analysis of the cementless Spotorno femoral component in patients less than 50 years of age.

The long-term survival of the cementless Spotorno (CLS) femoral component (Zimmer Inc, Warsaw, USA) was evaluated in a consecutive series of 85 patients (100 hips) less than 50 years of age. The mean follow-up was 12.3 years.

Trochlear osteotomy for patellar instability: satisfactory minimum 2-year results in patients with dysplasia of the trochlea.

Trochlear dysplasia is a predisposing factor for recurrent patellar instability. We evaluated the results of an anterior lateral femoral condyle open wedge osteotomy for treating patellar instability. A total of 16 consecutive patients (19 knees) with symptoms of recurrent patellar instability and trochlear dysplasia identified using a true lateral radiograph of the knee underwent an anterior lateral femoral osteotomy.

No benefits with computer assistance in triple pelvic osteotomy.

We evaluated computer-assisted surgery (CAS) used for 21 triple pelvic osteotomies on 20 patients with symptomatic acetabular dysplasia and compared the intraoperative and immediate postoperative data with those of 32 patients who underwent 40 pelvic osteotomies without CAS. The use of the CAS system was abandoned during 9/21 operations mostly because of technical and CT data failure. The peroperative blood loss and duration of surgery were greater, while neurovascular damage occurred less often in the CAS group.