Joo Han Oh

BACKGROUND: The prognostic factors associated with structural outcome after arthroscopic rotator cuff repair have not yet been fully determined. HYPOTHESIS: The hypothesis of this study was that bone mineral density (BMD) is an important prognostic factor affecting rotator cuff healing after arthroscopic cuff repair. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: Among 408 patients who underwent arthroscopic repair for full-thickness rotator cuff tear between January 2004 and July 20

BACKGROUND: Many patients with an unhealed cuff after repair show functional improvement. PURPOSE: To evaluate outcomes of arthroscopically repaired massive rotator cuff tears and to identify prognostic factors affecting rotator cuff healing and functional outcome, especially in patients with failed rotator cuff healing. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: Among 173 patients who underwent arthroscopic repair of a massive rotator cuff tear, 108 patients with a mean age of 63

PURPOSE: To analyze the relationship between functional outcomes and postoperative cuff integrity (anatomic outcome), and to reveal the factors affecting outcomes of rotator cuff repair. METHODS: Seventy-eight patients who had undergone repair of full-thickness rotator cuff tear received both computed tomographic arthrography (CTA) and functional evaluation a minimum of 1 year after surgery. The mean follow-up period was 19.6 months (range, 12 to 39 months). Anatomic outcome was evaluated by CTA

BACKGROUND: Early passive motion exercise has been the standard rehabilitation protocol after rotator cuff repair for preventing postoperative stiffness. However, recent approaches show that longer immobilization may enhance tendon healing and quality. PURPOSE: To elucidate whether early passive motion exercise affects functional outcome and tendon healing after arthroscopic rotator cuff repair. STUDY DESIGN: Randomized controlled trial; Level of evidence, 1. METHODS: One hundred five consecutiv

Recently, patients with shoulder pain have increased rapidly. Of all shoulder disorders, rotator cuff tears (RCTs) are most prevalent in the middle-aged and older adults, which is the primary reason for shoulder surgery in the population. Some authors have reported that up to 30% of total RCTs can be classified as irreparable due to the massive tear size and severe muscle atrophy. In this review article, we provide an overview of treatment methods for irreparable massive RCTs and discuss proper

BACKGROUND: Small and medium-sized rotator cuff tears usually have good clinical and anatomic outcomes. However, healing failure still occurs in some cases. PURPOSE: To evaluate prognostic factors for rotator cuff healing in patients with only small to medium-sized rotator cuff tears. STUDY DESIGN: Case-control study; Level of evidence, 3. METHODS: Data were prospectively collected from 339 patients with small to medium-sized rotator cuff tears who underwent arthroscopic repair by a single surge

Level III, diagnostic study. See the Guidelines for Authors for a complete description of levels of evidence.

PURPOSE: The purpose of this study was to determine whether moderate preoperative shoulder stiffness affects the clinical outcome of rotator cuff repair, and to evaluate the serial change in range of motion (ROM), functional scores, pain, and satisfaction after rotator cuff repair. METHODS: Rotator cuff repair was performed in 125 consecutive patients (127 shoulders). Thirty patients had concomitant moderate shoulder stiffness at the time of the repair. There were no statistical differences in s

PURPOSE: The aims of this study were to determine the incidence of postoperative stiffness after rotator cuff repair and to evaluate postoperative stiffness with respect to its risk factors and its influence on outcome. METHODS: We included 288 patients (mean age, 59.5 ± 8.4 years) who underwent surgical repair of full-thickness rotator cuff tears. Postoperative range of motion was measured serially 3 months, 6 months, and at least 1 year (mean, 22.8 ± 13.1 months) after surgery. Simultaneously,

BACKGROUND: Scoring systems integrating possible prognostic factors and predicting rotator cuff healing after surgical repair could provide valuable information for clinical practice. PURPOSE: To determine the prognostic factors predictive of rotator cuff healing after surgical repair and to integrate these factors into a scoring system. STUDY DESIGN: Case-control study; Level of evidence, 3. METHODS: The authors reviewed the records of 603 patients who, at least 12 months after primary rotator

BACKGROUND: Variations in formulations used to prepare platelet-rich plasmas (PRPs) result in differences in the cellular composition and biomolecular characteristics. PURPOSE: To evaluate the cellular composition and the cytokine-release kinetics of PRP according to differences in the preparation protocols. STUDY DESIGN: Controlled laboratory study. METHODS: Five preparation procedures were performed for 14 healthy subjects, including 2 manual procedures (single-spin [SS] at 900 g for 5 minutes

BACKGROUND: There are numerous reports on the outcome of rotator cuff repair according to age. However, the results are conflicting and driven by univariate analysis, which is not free of confounding factors. HYPOTHESIS: Age does not affect the anatomical and functional outcomes of rotator cuff repair. STUDY DESIGN: Case series; Level of evidence, 4. MATERIALS AND METHODS: Eighty-one men and 96 women underwent rotator cuff repair at one institution and received computed tomography arthrography a