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Satoshi Maeda

Publications and source records attributed to Satoshi Maeda.

22 records · Page 2Linked to original sources
PubMed2004

Arthroscopic Bankart repair using suture anchors in athletes: patient selection and postoperative sports activity.

PURPOSE: The purpose of this study was to evaluate the results in selected high-risk patients who underwent arthroscopic stabilization of shoulders with recurrent anterior instability. HYPOTHESIS: Arthroscopic stabilization using suture anchors is useful for athletes younger than 25 years or for contact athletes without a large bone loss of glenohumeral articulation. STUDY DESIGN: Prospective cohort study. METHODS: The study group comprised 55 patients, with a mean follow-up of 42 months (range, 25-72 months). Thirty-two patients had recurrent dislocations, 14 had recurrent subluxations, and 9 had recurrent subluxations after a single dislocation. Rowe score, range of motion, recurrence, and sports activities were evaluated. RESULTS: Mean Rowe score improved from 30.1 to 92.3 points; 45 scores (82%) were excellent, 5 (9%) good, 1 fair (2%), and 4 (7%) poor. Patients had lost a mean of 4 degrees of external rotation in adduction. Four (7%) had recurrence. The recurrence rate in contact athletes (9.5%, 2 of 21) was not statistically different from that in noncontact athletes (6%, 2 of 34). Forty-four (80%) returned at the same levels. The complete return rate in overhead-throwing athletes (68%, 17 of 25) was lower than that in nonoverhead athletes (90%, 27 of 30) (P = .0423). Five patients had unsatisfactory results. CONCLUSION: Arthroscopic stabilization is a reliable procedure in selected high-risk patients.

Adolescent↗
PubMedDate not supplied

Does the inferior transverse scapular ligament cause distal suprascapular nerve entrapment? An anatomic and morphologic study.

The number of reports on entrapment of the distal suprascapular nerve is increasing, but the incidence with regard to the inferior transverse scapular ligament remains controversial. Therefore, we investigated its incidence and anatomy in a series of cadaveric specimens; 115 shoulders (62 cadavers) were examined. The ligament was classified as either ligament- or membrane-type depending on its thickness. The width of the ligament and its maximal distance to bone and nerve were measured. Among the 115 specimens, the ligament was absent in 21 cases (18.3%), the ligament-type was present in 25 (21.7%), and the membrane-type was present in 69 (60.0%). The ligament width varied from 1.8 to 9.0 mm (mean, 5.4 mm), the maximal distance from ligament to bone varied from 3.0 to 11.1 mm (mean, 5.7 mm), and the distance from ligament to nerve was from 0.1 to 7.0 mm (mean, 3.1 mm). As there was considerable variation in the distances from the ligament to bone and nerve, the ligament may play a role in paralysis of the infraspinatus muscle, depending on these distances.

Adult↗
PubMedDate not supplied

Shoulder-strengthening exercise with an orthosis for multidirectional shoulder instability: quantitative evaluation of rotational shoulder strength before and after the exercise program.

We evaluated the results of shoulder-strengthening exercises with our novel shoulder orthosis to stabilize the scapula in 46 patients with multidirectional shoulder instability. We quantified the changes in muscle strength produced by our rehabilitation program. Our study included 34 female patients and 12 male patients (mean age, 20 years) with 73 affected shoulders. All patients performed the prescribed exercise program for 8 weeks. Their mean total scores on the modified Rowe grading system significantly increased from 51.9 to 74.9 points (P <.001). The mean peak torque of internal and external rotation, measured with an isokinetic dynamometer, significantly increased (P <.05); the mean external/internal peak torque ratios significantly decreased (P <.05) and were normalized upon completion of the rehabilitation program. Because of failure of conservative treatment, 3 patients underwent surgery at a mean follow-up duration of 7 years. We conclude that the prescribed shoulder-strengthening exercise represents a useful treatment option for patients with multidirectional shoulder instability.

Adolescent↗