Save the subchondral bone plate: Debridement versus bone marrow stimulation in acetabular cartilage defects over 60 months of follow-up.

Purpose: Bone marrow stimulation is a common treatment for full-thickness cartilage defects in the hip joint. However, common procedures may result in poor fibrous repair tissue and changes to the subchondral anatomy. This study investigated the clinical outcome of a cohort of International Cartilage Repair Society (ICRS) grades 3 and 4 cartilage defects treated with bone marrow stimulation compared to those who received simple debridement/chondroplasty.

Patients with Small Acetabular Cartilage Defects Caused by Femoroacetabular Impingement Do Not Benefit from Microfracture.

Objective: According to current recommendations, large cartilage defects of the hip over 2 cm are suggested to undergo autologous chondrocyte transplantation (ACT), while small defects should be treated with microfracture. We investigated if patients with small chondral defects of the hip joint (≤100 mm) actually benefit from microfracture.

Design: In this retrospective multicenter cohort study 40 patients with focal acetabular cartilage defects smaller than 100 mm and of ICRS grade ≥2 caused by femoroacetabular impingement were included.

Vascular obstruction at the level of the ankle joint as a complication of hip arthroscopy.

We report a case of foot vascular obstruction as a complication of hip arthroscopy. A 23-year-old female patient underwent hip arthroscopy for femoroacetabular impingement. The duration of the procedure was 80 minutes, including 20 minutes with traction for arthroscopy of the central compartment and 60 minutes without traction for cam treatment in the peripheral compartment.

[Arthroscopic resection of the cam deformity of femoroacetabular impingement].

Objective: Resection of the cam deformity of the femoral head-neck junction in order to avoid femoroacetabular impingement and the development of secondary damage to the anterolateral acetabular rim.

Indications: Femoroacetabular cam impingement. Initial femoroacetabular pincer impingement.

Comparison of bioresorbable and titanium plates in cervical spinal fusion: early radiologic and clinical results.

Study Design: This is a prospective, randomized, and controlled study, approved by the local ethical committee of Saarland (Germany), no. 209/06.

Objective: The aim of this study was to compare clinical results, segmental motility, magnetic resonance imaging (MRI) compatibility, and change of the bone density of a cervical spine segment that was treated with either bioresorbable or titanium plates in single level.

Tenodesis of the long head of biceps brachii: cyclic testing of five methods of fixation in a porcine model.

For pathologies of the long head of the biceps brachii, various surgical treatment options have been described, ranging from tenotomy to different open and arthroscopic techniques for tenodesis. We analyzed the biomechanical properties of 5 widely used operative techniques for tenodesis of the long head of the biceps brachii: an interference screw (7 x 23-mm Arthrex BioTenodesis screw), a suture anchor (5 x 15-mm Arthrex BioCorkscrew), a ligament washer, the keyhole technique, and the bone tunnel technique. Ten porcine humeri for each technique were used to evaluate the ultimate failure load and cyclic displacement.

The ProDisc-C prosthesis: clinical and radiological experience 1 year after surgery.

Study Design: This is a prospective randomized and controlled study, approved by the local ethical committee of Saarland (Germany).

Objective: The aim of the current study was to analyze segmental motion following artificial disc replacement using disc prosthesis over 1 year. A second aim was to compare both segmental motion as well as clinical result to the current gold standard (anterior cervical discectomy and fusion [ACDF]).

Biomechanical properties of patellar and hamstring graft tibial fixation techniques in anterior cruciate ligament reconstruction: experimental study with roentgen stereometric analysis.

Background: Reliable fixation of the soft hamstring grafts in ACL reconstruction has been reported as problematic.

Hypothesis: The biomechanical properties of patellar tendon (PT) grafts fixed with biodegradable screws (PTBS) are superior compared to quadrupled hamstring grafts fixed with BioScrew (HBS) or Suture-Disc fixation (HSD).

Study Design: Controlled laboratory study with roentgen stereometric analysis (RSA).