Limited benefits of the direct anterior approach in primary hip arthroplasty: A prospective single centre cohort study.

Background: Since years a discussion is held on the best approach to perform total hip replacement (THR). Risk of dislocation, abductor weakness and a possible difference in rehabilitation are mentioned. We performed this study to objectify that the use of the direct anterior approach (DAA) results in a faster rehabilitation after THR compared to the non-DAA (posterolateral and anterolateral) approach.

A biomechanical assessment of superior shoulder translation after reconstruction of anterior glenoid bone defects: The Latarjet procedure versus allograft reconstruction.

Background: The coracoacromial ligament (CAL) is an important restraint to superior shoulder translation. The effect of CAL release on superior stability following the Latarjet is unknown; therefore, our purpose was to compare the effect of two Latarjet techniques and allograft reconstruction on superior instability.

Materials And Methods: Eight cadaveric specimens were tested on a simulator.

Classic versus congruent coracoid positioning during the Latarjet procedure: an in vitro biomechanical comparison.

Purpose: The purpose of this biomechanical study was to compare the classic Latarjet technique and congruent-arc modification with respect to glenohumeral stability, joint stiffness, translation, and range of motion.

Methods: Eight cadaveric forequarters were tested on a shoulder simulator that applied loads independently to the conjoint tendon, long head of biceps, rotator cuff, and deltoid. The test conditions included: intact, 30% glenoid defect, and reconstruction of the defect with the classic and congruent Latarjets.

The shoulder remplissage procedure for Hill-Sachs defects: does technique matter?

Background: This biomechanical study evaluated the effects of 3 remplissage techniques on shoulder stability and motion in a Hill-Sachs (HS) instability model.

Materials And Methods: Cadaveric forequarters were tested on an active shoulder simulator. Three remplissage techniques were performed for 15% and 30% HS defects.

Does the dynamic sling effect of the Latarjet procedure improve shoulder stability? A biomechanical evaluation.

Introduction: Glenohumeral instability with glenoid bone loss is commonly treated with the Latarjet procedure. The procedure involves transfer of the coracoid and conjoint tendon, which is thought to provide a stabilizing sling effect; however, its significance is unknown. This study evaluated the effects of the Latarjet procedure, with and without conjoint tendon loading, on shoulder stability and range of motion (ROM).

Hemiarthroplasty for humeral four-part fractures for patients 65 years and older: a randomized controlled trial.

Background: Four-part fractures of the proximal humerus account for 3% of all humeral fractures and are regarded as the most difficult fractures to treat in the elderly. Various authors recommend nonoperative treatment or hemiarthroplasty, but the literature is unclear regarding which provides better quality of life and function.

Questions/purposes: We therefore performed a randomized controlled trial to compare (1) function, (2) strength, and (3) pain and disability in patients 65 years and older with four-part humeral fractures treated either nonoperatively or with hemiarthroplasty.

The effect of the remplissage procedure on shoulder stability and range of motion: an in vitro biomechanical assessment.

Background: The remplissage procedure may be performed as an adjunct to Bankart repair to treat recurrent glenohumeral dislocation associated with an engaging Hill-Sachs humeral head defect. The purpose of this in vitro biomechanical study was to examine the effects of the remplissage procedure on glenohumeral joint motion and stability.

Methods: Cadaveric shoulders (n = 8) were mounted on a biomechanical testing apparatus that applies simulated loads to the rotator cuff and the anterior, middle, and posterior heads of the deltoid muscle.

The effect of the conjoined tendon of the short head of the biceps and coracobrachialis on shoulder stability and kinematics during in-vitro simulation.

The kinematics and stability of the shoulder during in-vitro simulation are affected by the muscles chosen for simulation and their loads. Existing simulators have commonly actuated the rotator cuff and deltoids; however, the contribution of secondary muscles, such as those which form the conjoined tendon, are not well understood. The conjoined tendon consists of the origins of the short head of the biceps and coracobrachialis (SH&C), and is thought to produce an anterior stabilizing effect.

Lengthener loosening in a reversed shoulder prosthesis: a case report.

The reverse shoulder prosthesis is designed for the treatment of glenohumeral arthritis with irreparable cuff arthropathy. Although it has given good short term results the prosthesis is not free of complications. In this case report we describe an implant-related complication.

Oncologic and functional results after treatment of giant cell tumors of bone.

Surgical treatment of giant cell tumor of bone has always been a difficult problem because of its local aggressive behavior. Oncologic results and functional outcome are reported here in a retrospective study of 36 patients, treated by various surgical procedures. The average age at the time of diagnosis was 34 years, and the median follow-up period was 7 years.