Mid- to long-term success rate and functional outcomes of acromioclavicular injections in patients with acromioclavicular osteoarthritis.

Background: Acromioclavicular (AC) osteoarthritis (OA) is a frequent pathology of the shoulder in elderly patients. Drug injection plays an important role in treatment of AC OA. Literature has demonstrated excellent short-term results regarding shoulder function and pain.

Ninety-day complication rate based on 532 Latarjet procedures in Dutch hospitals with different operation volumes.

Background: In this study, we aimed to provide insight into the 90-day complication rates following the Latarjet procedure. Data from 2015 were collected from multiple hospitals in the Netherlands, with different volumes of Latarjet procedures. Our second aim was to examine which patient and surgical factors were associated with complications.

Role of Delay Between Injury and Surgery on the Outcomes of Rotator Cuff Repair: A Systematic Review and Meta-analysis.

Background: Outcomes of rotator cuff repair (RCR) are influenced by several well-described factors, but the role of delay from injury to surgery on the outcomes is not clear.

Purpose: To assess the role of delay to surgery on the outcomes of RCR in the literature.

Study Design: Systematic review with meta-analysis; Level of evidence, 4.

Results of stemless shoulder arthroplasty: a systematic review and meta-analysis.

Stemless shoulder arthroplasty relies solely on cementless metaphyseal fixation and is designed to avoid stem-related problem such as intraoperative fractures, loosening, stress shielding or stress-risers for periprosthetic fractures.Many designs are currently on the market, although only six anatomic and two reverse arthroplasty designs have results published with a minimum of two-year follow-up.Compared to stemmed designs, clinical outcome is equally good using stemless designs in the short and medium-term follow-up, which is also the case for overall complication and revision rates.

Conversion to reverse shoulder arthroplasty fifty-one years after shoulder arthrodesis: A case report.

Background: Patients with a shoulder arthrodesis generally experience restriction in range of motion and limitations in activities of daily living. In addition, up to one-third of the patients deals with serious peri scapular pain. The conversion of a shoulder arthrodesis in a reverse shoulder arthroplasty (RSA) has been described as an effective treatment to achieve better function and decreased pain, although literature is sparse.

Capsulorraphy with Achilles allograft augmentation for shoulder instability in patients with Ehlers-Danlos syndrome.

Background: Surgical management of shoulder instability in patients with Ehlers-Danlos syndrome (EDS) remains challenging secondary to the pathologic nature of their connective tissue. Allograft reconstruction of the shoulder capsule in EDS has the potential to increase stability by providing healthier connective tissue. The purpose of this study was to report the surgical technique and outcome of open capsulorraphy and augmentation of the anterior capsule with an Achilles tendon allograft in patients with shoulder instability in the setting of EDS.

Suprapectoral versus subpectoral tenodesis for Long Head Biceps Brachii tendinopathy: A systematic review and meta-analysis.

Background: Suprapectoral long head biceps (LHB) tenodesis and subpectoral LHB tenodesis are both commonly performed surgical procedures. Due to the more proximal position of the suprapectoral tenodesis site this technique may be accompanied with more postoperative pain in the bicipital groove and cramping pain in the biceps muscle. We hypothesized that subpectoral tenodesis is associated with a better clinical outcome than suprapectoral tenodesis.

New insights in the treatment of acromioclavicular separation.

A direct force on the superior aspect of the shoulder may cause acromioclavicular (AC) dislocation or separation. Severe dislocations can lead to chronic impairment, especially in the athlete and high-demand manual laborer. The dislocation is classified according to Rockwood.

Once an arthrodesis, always an arthrodesis?

Background: An arthrodesis of the shoulder is historically a solution for severe shoulder joint problems, for which no prosthetic solution is deemed possible. With the introduction of the reverse shoulder arthroplasty (RSA), which is intrinsically stable at the glenohumeral joint, it seems logical to consider conversion of a painful arthrodesis into a RSA, provided that the deltoid was not destroyed during the arthrodesis.

Methods: Four patients (2 men, 2 women; age 46-66 years) with a longstanding arthrodesis (5-11 years) visited our clinic with a painful shoulder (mainly around the scapula) with the request to provide more mobility.

Isokinetic strength differences between patients with primary reverse and total shoulder prostheses: muscle strength quantified with a dynamometer.

Background: Range of motion after total shoulder arthroplasty is better than after reverse shoulder arthroplasty, however with similar clinical outcome. It is unclear if this difference can only be found in the different range of motion or also in the force generating capacity.

Questions: (1) are isokinetically produced joint torques of reverse shoulder arthroplasty comparable to those of total shoulder arthroplasty? (2) Does this force-generating capacity correlate with functional outcome?

Methods: Eighteen reverse shoulder arthroplasty patients (71years (SD 9years)) (21 shoulders, follow-up of 21months (SD 10months)) were recruited, 12 total shoulder arthroplasty patients (69years (SD 9years)) (14 shoulders, follow-up of 35months (SD 11months)).

The active and passive kinematic difference between primary reverse and total shoulder prostheses.

Background: Reverse shoulder arthroplasty (RSA) and total shoulder arthroplasty (TSA) effectively decrease pain and improve clinical outcome. However, indications and biomechanical properties vary greatly. Our aim was to analyze both active and passive shoulder motion (thoracohumeral [TH], glenohumeral [GH], and scapulothoracic [ST]) and determine the kinematic differences between RSAs and TSAs.

Are shoulders with a reverse shoulder prosthesis strong enough? A pilot study.

Background: It has been suggested that limited active ROM of reverse shoulder prostheses relates to lack of strength. However, the postoperative strength has not been quantified.

Questions/purposes: We therefore measured joint torques in patients with reverse shoulder prostheses and correlated torques with functional scores.