The impact of bone marrow stimulation on arthroscopic rotator cuff repair for small to large rotator cuff tears: a randomized controlled trial.

Background: Bone marrow stimulation (BMS), a procedure involving the creation of multiple channels in the greater tuberosity, is often performed alongside arthroscopic rotator cuff repair (ARCR). This study evaluated the effect of BMS on clinical and structural outcomes following ARCR.

Method: This study involved 204 patients with small, medium, and large full-thickness rotator cuff tears.

Returning to golf after rotator cuff repair.

Background: The prevalence of rotator cuff repair is increasing; however, no study has assessed patients who have returned to golf activity after arthroscopic rotator cuff repair.

Methods: The subjects of the survey were 633 patients who were at least two years postoperative after rotator cuff repair from January 2005 to December 2017. From August 2019 to October 2019, survey responses were collected via an online questionnaire or phone calls and a total of 197 patients were reviewed retrospectively to study about returning to golf after rotator cuff repair.

The full-length mitochondrial genome of the Fernholm's hagfish, (Myxini; Myxiniformes; Myxinidae).

The full-length mitochondrial genome of the Fernholm's hagfish, (Myxini; Myxiniformes; Myxinidae) was analyzed by the primer walking method. Its mitogenome was 18,862 bp in total length and was composed of 13 protein-coding genes, two ribosomal RNA genes, and 22 transfer RNA genes. The gene content and order were congruent with those of typical vertebrates.

The full-length mitochondrial genome of (Teleostei: Cypriniformes: Cobitidae).

The entire mitochondrial genome of (Teleostei: Cypriniformes: Cobitidae) was analyzed using the primer walking method. The mitogenome was 16,631 bp in length, comprising 13 protein-coding genes, 2 ribosomal RNA genes, and 22 transfer RNA genes. Its gene order was congruent with those of typical vertebrates.

Prospective evaluation of the effectiveness of a home-based program of isometric strengthening exercises: 12-month follow-up.

Background: The aim of this prospective randomized clinical trial was to investigate the efficacy of a home-based program of isometric strengthening exercises for the treatment of the lateral epicondylitis (LE) of the distal humerus. We hypothesized that 1) use of isometric strengthening exercises would result in clinical benefits similar to those provided by medication and pain relief and 2) functional improvements after exercise would be time-dependent.

Methods: Patients were assigned to one of two groups: 1) an immediate physical therapy group (group I), or 2) a delayed physical therapy group (group D).

Perianchor radiolucency after knotless anchor repair for shoulder instability: correlation with clinical results of 69 cases.

Background: Although there would seem to be a logical relationship between radiolucency around the suture anchor and clinical result in Bankart repair, the correlation has not been demonstrated so far.

Hypothesis: Knotless suture anchor is a viable alternative for arthroscopic Bankart repair, but postoperative radiologic findings of radiolucency around anchors are correlated with poor clinical results.

Study Design: Case series; Level of evidence, 4.

Comparison of the clinical outcomes of single- and double-row repairs in rotator cuff tears.

Background: Although research has demonstrated the superiority of double-row rotator cuff repair over single-row methods from a biological and mechanical point of view, few studies have compared clinical outcome of the 2 methods, and no articles have been published describing the superiority of double-row methods in clinical aspects.

Hypothesis: Arthroscopic double-row repair of a rotator cuff tear has superior clinical outcome to single-row repair.

Study Design: Cohort study; Level of evidence, 2.

A vector for purification-free cloning of polymerase chain reaction products.

Conventional cloning requires the purification of restriction-enzyme-digested vectors prior to the ligation reaction. The purification often involves the separation of restriction fragments via electrophoresis, the cutting out of a piece of gel, and the gel extraction of the linearized vector. In addition to the loss of significant amounts of DNA, reduced cloning efficiency, time, and cost, these steps are also mutagenic to DNA and hazardous to humans.