Arthroscopic-assisted rotator cuff repair: patient selection and treatment outcome

Clinical Observation on the Treatment of Rotator Cuff Injury with Modified Buyang Huanwu Decoction and Rotator Cuff Repair

In this paper, we have evaluated the clinical efficacy of rotator cuff surgery combined with Chinese medicine Buyang Huanwu Decoction (adding medicine) in the treatment of patients with rotator cuff injury. For this purpose, sixty patients with rotator cuff injury and shoulder arthroscopic surgery were selected in this hospital (where 57 cases were finally screened). The patients were divided into a control group (28 cases) and a study group (29 cases) by the envelope method. The control group received conventional treatment after the operation, whereas the study group was combined with Buyang Huanwu Decoction after the operation. The clinical efficacy of the two groups, particularly after treatment, was compared in terms of self-care ability and Constant-Murley scores before and after treatment, that is, 4 w, 8 w, and 12 w. The total effective rate of treatment in the study group was significantly higher than that of the control group after 4 weeks of treatment (P < 0.05). There was no significant difference in the FIM self-care scores of the two groups before treatment (P > 0.05). In the study group patients, after treatment for 4 w and 8 w, the FIM self-care score was significantly improved (P < 0.05). The FIM self-care score of the patients in the study group, after 12 w of treatment, had no significant difference compared with the control group (P > 0.05). The Constant-Murley scores of the two groups were compared before treatment where no significant difference is observed (P > 0.05) and the Constant-Murley score of the study group patients was significantly higher than that of the control group, after 4 w and 8 w treatment (P < 0.05). Additionally, Constant-Murley score of the study group was not significantly higher than that of the control group after 12 w of treatment difference (P > 0.05). The proposed combined treatment program has value of promotion and implementation in the clinical treatment of patients with rotator cuff injury.

COMPARISON OF COMPLEMENTARY EXAMS IN THE DIAGNOSIS OF ROTATOR CUFF INJURIES

The aim of this study was to evaluate the accuracy of simple radiography, ultrasound and magnetic resonance imaging (MRI) in diagnosing rotator cuff injuries, comparing their findings with open or arthroscopic surgery findings. Methods: Protocols of the Shoulder and Elbow Surgery Service for patients undergoing surgical treatment for rotator cuff injuries diagnosed by means of radiography, ultrasound and/or MRI between 2002 and 2007 were evaluated. Based on the data gathered, we analyzed the sensitivity, specificity, positive predictive value, negative predictive value and accuracy of these complementary examinations, compared with the findings during the surgical procedures. Results: This study included 147 patients with a mean age of 46.09 years. All the patients had undergone a radiography examination, 101 had undergone ultrasound examination and 72 had undergone MRI. We found sensitivity of 13.8%, specificity of 2.6% and accuracy of 30% with radiography; sensitivity of 57.6%, specificity of 29.6% and accuracy of 51.4% with ultrasound; and sensitivity of 86.6%, specificity of 22.2% and accuracy of 63.3% with MRI. Conclusion: Radiography was found to be a specific examination when the mirror sign was present. MRI and ultrasound were shown to be reliable methods with high accuracy for diagnosing rotator cuff injuries.

Surgical Versus Nonsurgical Management of Rotator Cuff Tears: Predictors of Treatment Allocation

BACKGROUND

Rotator cuff tears are a common shoulder disorder resulting in significant disability to patients and financial burden on the health care system. While both surgical and nonsurgical management are accepted treatment options, there is a paucity of data to support a treatment algorithm for care providers. Defining variables to guide treatment allocation may be important for patient education and counseling, as well as to deliver the most efficient care plan at the time of presentation.

PURPOSE

To identify independent variables at the time of initial clinical presentation that are associated with preferred allocation to surgical versus nonsurgical management for patients with known full-thickness rotator cuff tears.

STUDY DESIGN

Case control study; Level of evidence, 3.

METHODS

A total of 196 consecutive adult patients with known full-thickness rotator cuff tears were enrolled into a prospective cohort study. Robust data were collected for each subject at baseline, including age, sex, body mass index (BMI), shoulder activity score, smoking status, size of cuff tear, duration of symptoms, functional comorbidity index, the American Shoulder and Elbow Surgeons (ASES) score, the Western Ontario Rotator Cuff index (WORC), and the Veterans Rand 12-Item Health Survey (VR-12). Logistic regression was performed to identify variables associated with treatment allocation, and the corresponding odds ratios were calculated.

RESULTS

Of the 196 patients enrolled, 112 underwent surgical intervention and 84 nonoperative management. With covariates controlled for, significant baseline patient characteristics predictive of eventual allocation to surgical treatment included younger age, lower BMI, and durations of symptoms less than 1 year. Increasing age, higher BMI, and duration of symptoms longer than 1 year were predictive of nonsurgical treatment. Factors that were not associated with treatment allocation included sex, tear size, functional comorbidity score, or any of the patient-derived outcome scores at presentation (ASES, WORC, VR-12, shoulder activity score).

CONCLUSION

Patient demographics at the time of initial presentation for a symptomatic rotator cuff tear are more predictive of treatment allocation to a surgical or nonoperative approach than the patient-derived outcome scores for activity level and shoulder disability. Further study is warranted to help define appropriate indications for treatment allocation in patients with rotator cuff tears.

Early outcome of arthroscopic Bankart's repair for recurrent traumatic anterior shoulder instability

BACKGROUND/OBJECTIVES

Despite the improvements in the methods of arthroscopic stabilization of anterior shoulder instability, a recurrence rate of as high as 30% is reported in the literature. In this context, we report the outcome of arthroscopic Bankart repair in anterior shoulder instability, with the use of bio-absorbable suture anchors for patients that were followed up for at least two years from the date of surgery. The arthroscopic method offers a less invasive technique of Bankart repair for traumatic anterior shoulder instability. We would like to report the 2-year clinical outcomes of bio-absorbable suture anchors used in traumatic anterior dislocations of the shoulder.

METHODS

Data from 79 shoulders in 74 patients were collected over 4 years (2005-2009). Each patient was followed up over a period of 2 years. The patients underwent arthroscopic Bankart repair using bio-absorbable suture anchors for their anterior shoulder instability. These surgeries were performed at a single institution by a single surgeon over the time period. The patients were assessed with two different outcome measurement tools. The University of California at Los Angeles (UCLA) shoulder rating scale and the Simple Shoulder Test (SST) score. The scores were calculated before surgery and at the 2-year follow-up. The recurrence rates, range of motion as well post-operative function and return to sporting activities were evaluated.

RESULTS

SST results from the 12 domains showed a significant improvement from a mean of 6.1 ± 3.1 to 11.1 ± 1.8 taken at the 2-year follow-up (p < 0.0001). Data from the UCLA scale showed a pre and post-operative mean of 20.2 ± 5.0 and 32.4 ± 4.6 respectively (p < 0.0001). 34 had excellent post-operative scores, 35 had good scores, 1 had fair score and 3 had poor scores. 75% of the patients returned to sports while 7.6% developed a recurrence of shoulder dislocation or subluxation.

CONCLUSION

Arthroscopic Bankart repair with the use of suture anchors is a reliable treatment method, with good clinical outcomes, excellent post-operative shoulder motion and low recurrence rates.

Surgical referral criteria for degenerative rotator cuff tears: a Delphi questionnaire study

Selecting the most appropriate patients to refer for surgery is crucial for high-quality and efficient clinical care. However, there are no specific referral criteria to guide the referral of appropriate patients for rotator cuff repair surgery. The aim of the present study was to design robust surgical referral criteria for patients with degenerative rotator cuff tears using consensus methodology. A two-round Delphi questionnaire was undertaken with a nationally representative sample of 41 specialist shoulder surgeons experienced in rotator cuff repair. Surgical referral criteria for degenerative rotator cuff tear were developed where consensus of at least 70% agreement was achieved. The initial questionnaire consisted of 24 items. Consensus was reached on 14 items, including: severity of pain, functional limitation, the identification of fat atrophy, agreement that a course of physiotherapy should be attempted before surgical referral, and exclusion for those with an active frozen shoulder. However, there was no consensus with regard to the dimensions of the tear. The surgical referral criteria developed were novel and promising for patients with degenerative rotator cuff tears, and further research is required to examine their efficacy.

Long-term survivorship of rotator cuff repairs using ultrasound and magnetic resonance imaging analysis

BACKGROUND

Important differences in clinical outcomes likely exist between patients with healed and nonhealed rotator cuff repairs. The survival probability of rotator cuff repairs has not been published in a time-dependent manner up to now.

HYPOTHESES

Recurrent tears occur more frequently in the early postoperative period. Early failures of the repair are a prognostic factor for the long-term outcome.

STUDY DESIGN

Cohort study; Level of evidence, 3.

METHODS

A series of 107 consecutive patients undergoing arthroscopically assisted mini-open repair of the rotator cuff between 1998 and 2002 were evaluated in a prospective study. Of these, 95 patients finished the study after a maximum follow-up of 11 years. The evaluation included 1 postoperative magnetic resonance imaging scan as well as multiple ultrasonographies and determinations of the American Shoulder and Elbow Surgeons (ASES) and Constant scores at 3 months, 6 months, 1 year, and then yearly with a median follow-up of 96 months.

RESULTS

The overall failure rate was 33% (35 of 107). The survivorship analysis revealed that 74% of all failures occurred atraumatically in the first 3 months and 11% occurred between the third and the sixth month after the repair. The remaining reruptures (14%) happened 2 to 5 years postoperatively and were related to sports activities or direct trauma. The overall clinical results did not deteriorate over time. The parameters healed tendon, rerupture of less than 2 cm(2), and rerupture of more than 2 cm(2) at 6 months were predictors of the gender- and age-adjusted (normalized) Constant score at 84 months (P < .0001).

CONCLUSION

The majority of recurrent tears occurred in the first 3 months after surgical repair. The parameters "recurrent tear" as well as "healed tendon" evaluated at 6 months postoperatively appear to be predictors for the clinical outcomes at 7 years. Efforts to improve healing during the initial 3 months have long-term implications for maintenance of cuff integrity and clinical outcomes.

High-resolution magnetic resonance imaging of rotator cuff tears using a microscopy coil: noninvasive detection without intraarticular contrast material

PURPOSE

The aim of this study was to evaluate the feasibility of high-resolution magnetic resonance imaging (MRI) using a microscopy coil for the diagnosis of rotator cuff tears by comparing the method to conventional MRI and MRI arthrography.

MATERIALS AND METHODS

A total of 68 shoulders were prospectively studied using a 1.5-T MRI unit. Conventional MRI scans were obtained with a surface coil and high-resolution MRI scans with a microscopy coil. MRI arthrography was performed in 28 shoulders using a surface coil. MRI evaluation of tears of rotator cuff tendons was compared with arthroscopic findings and surgical results.

RESULTS

The surgery revealed 40 full-thickness tears, 13 partial-thickness tears, and 15 intact cuffs. In all, 35 (88%) full-thickness tears were correctly diagnosed on conventional MRI and 40 (100%) on high-resolution MRI. MR arthrography delineated 11 of 12 (92%) full-thickness tears. Altogether, 5 (38%) of the partial-thickness tears were detected on conventional MRI, and 12 (92%) were clearly demonstrated on high-resolution MRI. MRI arthrography depicted three (60%) of five partial-thickness tears. High-resolution MRI showed higher sensitivity than conventional MRI (P < 0.05) and had values equivalent to those of MRI arthrography for diagnosing partial-thickness tears.

CONCLUSION

High-resolution MRI with a microscopy coil is a feasible, noninvasive technique for diagnosing rotator cuff tears.

Minor or occult shoulder instability: an intra-articular pathology presenting with extra-articular subacromial impingement symptoms

PURPOSE

Disruption in the balance of shoulder stability can produce a widely varied spectrum of clinical symptoms, ranging from minor shoulder instability to frank shoulder dislocation, followed by recurrent instability. In this study, a series of patients suffering from minor shoulder instability, all with clinical signs of preoperative subacromial impingement associated with instability, were treated. The shoulder instability alone was addressed, with the aim of eliminating the clinical symptoms of subacromial impingement and pain.

MATERIAL

In this study, 20 patients with minor shoulder instability, presenting with subacromial impingement symptoms, underwent arthroscopic treatment to address capsule-labral pathology. All patients underwent a preoperative assessment by one independent physiotherapist, using Constant and WOSI scores, as well as the Castagna test, on both the affected and non-affected sides. The Hawkins test and subacromial pain in 90° of abduction and internal rotation were also evaluated. All patients followed the same rehabilitation protocol by a second physiotherapist. All patients were followed up at 6, 12 and 24 months postoperatively by the same independent physiotherapist.

RESULTS

We observed that 20/20 patients had a positive Hawkins sign at >20° of internal rotation preoperatively, while 4/19 had a positive Hawkins sign--all with less pain--at the 24-month follow-up (P < 0.0001). Moreover, 20/20 had a positive Castagna test preoperatively, while 1/20 had a positive Castagna test at the 24-month follow-up. In terms of shoulder scores, at 24 months, the Constant score had improved from a median value of 70 (51-91) preoperatively to a median value of 91 (86-100). The median WOSI score was 48.3 (12.7-78.6) preoperatively and improved to 84.9 (39.5-98.5) at 24 months postoperatively.

CONCLUSION

Minor shoulder instability is an intra-articular pathology presenting with extra-articular subacromial impingement symptoms. By treating the intra-articular pathology, the extra-articular symptoms can be relieved in the vast majority of patients.

Arthroscopic rotator cuff repair in elite rugby players

Background

Rugby is an increasingly popular collision sport. A wide spectrum of injuries can be sustained during training and match play. Rotator cuff injury is uncommon in contact sports and there is little published literature on the treatment of rotator cuff tears in rugby players.

Aims

We therefore reviewed the results and functional outcomes of arthroscopic rotator cuff repair in elite rugby players.

Materials and Methods

Eleven professional rugby players underwent arthroscopic rotator cuff repair at our hospital over a 2-year period. We collected data on these patients from the operative records. The patients were recalled for outcome scoring and ultrasound scans.

Results

There were seven rugby league players and four rugby union players, including six internationals. Their mean age was 25.7 years. All had had a traumatic episode during match play and could not return to the game after the injury. The mean time to surgery was 5 weeks. The mean width of the cuff tear was 1.8 cm. All were full- thickness cuff tears. Associated injuries included two Bankart lesions, one bony Bankart lesion, one posterior labral tear, and two 360° labral tears. The biceps was involved in three cases. Two were debrided and a tenodesis was performed in one. Repair was with suture anchors. Following surgery, all patients underwent a supervised accelerated rehabilitation programme. The final follow-up was at 18 months (range: 6–31 months) post surgery. The Constant scores improved from 44 preoperatively to 99 at the last follow-up. The mean score at 3 months was 95. The Oxford shoulder score improved from 34 to 12, with the mean third month score being 18. The mean time taken to return to full match play at the preinjury level was 4.8 months. There were no complications in any of the patients and postoperative scans in nine patients confirmed that the repairs had healed.

Conclusion

We conclude that full-thickness rotator cuff tears in the contact athlete can be addressed successfully by arthroscopic repair, with a rapid return to preinjury status.

Long term results of arthroscopic Bankart repair for traumatic anterior shoulder instability

Background

The arthroscopic method offers a less invasive technique of Bankart repair for traumatic anterior shoulder instability. We would like to report the 2 year clinical outcomes of bio-absorbable suture anchors used in traumatic anterior dislocations of the shoulder.

Methods

Data from 79 shoulders in 74 patients were collected over 4 years (2004 - 2008). Each patient was followed-up over a period of 2 years. The patients underwent arthroscopic Bankart repair using bio-absorbable suture anchors for their shoulder instability. These surgeries were performed at a single institution by a single surgeon over the time period. The patients were assessed with two different outcome measurement tools. The University of California at Los Angeles (UCLA) shoulder rating scale and the Simple Shoulder Test (SST) score. The scores were calculated before surgery and at the 2-year follow-up. The recurrence rates, range of motion as well post-operative function and return to sporting activities were evaluated.

Results

SST results from the 12 domains showed a significant improvement from a mean of 6.1 ± 3.1 to 11.1 ± 1.8 taken at the 2-year follow-up (p < 0.0001). Data from the UCLA scale showed a Pre and Post Operative Mean of 20.2 ± 5.0 and 32.4 ± 4.6 respectively (p < 0.0001). 34 had excellent post-operative scores, 35 had good scores, 1 had fair score and 3 had poor scores. 75% of the patients returned to sports while 7.6% developed a recurrence of shoulder dislocation or subluxation.

Conclusion

Arthroscopic Bankart repair with the use of suture anchors is a reliable treatment method, with good clinical outcomes, excellent post-operative shoulder motion and low recurrence rates.

Early structural and functional outcomes for arthroscopic double-row transosseous-equivalent rotator cuff repair

BACKGROUND

The arthroscopic double-row transosseous-equivalent (TOE) rotator cuff repair is growing in popularity. The current body of literature supports this technique; however, the number of patients in these studies is relatively small. The authors conducted this study to learn more about the natural history of this construct in a large sample of patients.

HYPOTHESIS

The double-row TOE rotator cuff repair will have an acceptable structural failure rate with improved clinical outcomes at 1-year follow-up.

STUDY DESIGN

Case series; Level of evidence, 4.

METHODS

Between June 2006 and October 2007, 225 patients underwent an all-arthroscopic rotator cuff repair at 2 surgical centers. A total of 155 TOE primary rotator cuff repairs were performed, and 154 of these patients met the inclusion criteria. Assessment of structural integrity was based on evaluation of postoperative magnetic resonance imaging or computed tomography arthrogram at a minimum of 12 months after surgery. The Constant scores, visual analog pain scale, range of motion, strength, and complications were the clinical outcomes analyzed for the study. Seventeen patients (of 154) had postoperative shoulder stiffness at follow-up.

RESULTS

The 154 patients were clinically and radiologically evaluated at a mean of 15 months postoperatively (range, 12-26.1 months). The study included 47 small (30.5%), 89 large (57.1%), and 19 massive (12.3%) rotator cuff tears. Analysis of postoperative imaging demonstrated that 92%, 83%, and 84% of the small, large, and massive rotator cuff tears, respectively, were intact. The mean Constant score improved from 44.42 points preoperatively to 80.47 points postoperatively (P < .001). The mean preoperative pain score improved from 3.83 to 12.77 (P < .001) postoperatively. The mean forward flexion improved from 123.06° preoperatively to 162.39° postoperatively (P < .001). Seventeen patients (of 154) had postoperative shoulder stiffness at follow-up.

CONCLUSION

The short-term results of this study indicate that the clinical outcomes and structural integrity of TOE double-row rotator cuff repair (the suture-bridge technique) have results that compare favorably with those reported for other double-row suture anchor techniques employed in rotator cuff repairs. Long-term follow-up will be necessary to determine if the durability of these repairs and the structural integrity of these constructs maintain their performance over time.

[Rotator cuff tears: value of 3.0T MRI]

PURPOSE

To demonstrate the value of 3.0T MR imaging for the detection of rotator cuff tendon tears and surgical planning by correlating imaging findings to surgical findings. Materials and methods. Prospective follow-up of patients who underwent 3.0T MR imaging of the shoulder in our department between November 2005 and June 2007. Surgical findings were correlated to imaging findings for 48 patients who underwent surgery: detection, size, partial thickness or complete, and tendon edges.

RESULTS

In this patient group, the positive predictive value of MRI for detecting surgical tears was 100% (100% of complete tears and 92% of partial thickness tears). No change in surgical management was recorded when arthroscopy was performed based on MRI findings (size of tear).

CONCLUSION

3.0 T MRI is valuable for the detection of small tears, especially for partial thickness tears due to increased spatial resolution. The identification of surgical candidates and surgical planning are improved due to more accurate measurements of tear size and quality of the tendon edges.

Mini-open rotator cuff repair via an anterosuperior approach

We retrospectively reviewed the results of arthroscopically assisted rotator cuff repairs done with an anterosuperior approach in 41 patients (average age, 55 years; range, 38-73). Average follow-up was 39 months (range, 24-57 months). There were 2 massive, 8 large 2-tendon, 9 medium-sized, 19 small, and 6 deep partial thickness rotator cuff tears. After arthroscopic inspection and acromioplasty, the anterior portal was enlarged in Langer's lines. The anterior deltoid raphe was incised to repair the tear. This approach was adequate for tears of all sizes. The average American Shoulder and Elbow Surgeon Score improved from 44.7 preoperatively to 91.7 postoperatively. There were 32 excellent (78%), 6 good (15%), and 3 poor (7%) results. Pain improved on a visual analog scale from 6.2 to 0.9. Arthroscopically assisted mini-open rotator cuff repair through an anterosuperior approach is a versatile deltoid-sparing technique. It does not require advanced arthroscopic skills or equipment and is associated with few complications.

A randomized clinical trial comparing open to arthroscopic acromioplasty with mini-open rotator cuff repair for full-thickness rotator cuff tears: disease-specific quality of life outcome at an average 2-year follow-up

BACKGROUND

Rotator cuff tears affect patients' quality of life. The evolution toward less invasive operative techniques for rotator cuff repair requires appropriate comparisons with the standard open procedure, using validated outcomes in a randomized fashion.

HYPOTHESIS

There is no difference in disease-specific quality of life outcomes at 2 years between an open surgical repair (open) versus an arthroscopic acromioplasty with mini-open (scope mini-open) repair for patients with full-thickness rotator cuff tears.

STUDY DESIGN

Randomized controlled trial; Level of evidence, 1.

METHODS

Patients with unremitting pain, failed nonoperative treatment, and imaging indicating full-thickness rotator cuff tears were included in the study. Massive irreparable cuff tears were excluded. Patients were assessed using the disease-specific Rotator Cuff-Quality of Life index, which produces a maximum score of 100, representing a high quality of life. Secondary shoulder-specific outcomes (American Shoulder and Elbow Society, Shoulder Rating Questionnaire, and Functional Shoulder Elevation Test) were also measured at baseline, 3 and 6 months, and 1 and 2 years.

RESULTS

The mean Rotator Cuff-Quality of Life scores at an average follow-up of 28 months were not statistically different: open, 86.9 (95% confidence interval: 81.8-92.0); and scope mini-open, 87.2 (95% confidence interval: 80.6-93.8). At 3 months, the patients who underwent scope mini-open showed statistically significantly better outcomes (55.6 vs 71.3; P = .005). The baseline to 3-month difference in Rotator Cuff-Quality of Life scores between the scope mini-open and open groups was also statistically significant.

CONCLUSION

Patient outcomes improved from baseline to all postoperative measurement intervals. There was no difference in outcome at 1 and 2 years after surgery between the scope mini-open and open procedures. The quality of life of patients undergoing the arthroscopic acromioplasty with mini-open rotator cuff repair improved statistically significantly and clinically at 3 months compared with the open group.

Mini-open versus all-arthroscopic rotator cuff repair: comparison of the operative costs and the clinical outcomes

INTRODUCTION

Rotator cuff injury is one of the most frequently encountered problems of the shoulder in the daily practice of orthopaedic surgeons. This study compared all-arthroscopic cuff repair (ARCR) and mini-open rotator cuff repair (MORCR) methods in regard to clinical outcomes and costs.

METHODS

Fifty patient charts and operative repairs were analysed (25 ARCR and 25 MORCR). Pre-and postoperative Constant-Murley and UCLA scores along with factors such as tear size, tear type, pre-operative physical therapy, motion and satisfaction levels were compared for the two procedures. Cost-benefit analysis was also performed for comparison between procedures. The duration of follow-up was 31.20 and 21.56 months for MORCR and ARCR groups, respectively.

RESULTS

Tear sizes (P=0.68), pre-and postoperative Constant-Murley and UCLA scores (P=0.254) and satisfaction levels were not significantly different between groups. However, the differences between pre-and postoperative Constant-Murley and UCLA scores were statistically significant within both groups (P<0.01). The MORCR group stayed 1 day longer in hospital than the ARCR group, which was statistically significant (P=0.036). The differences regarding mean pain scores, abductions, internal and external rotations in Constant-Murley scores and forward flexion scores in UCLA scores were not significant. The ARCR group cost more, leaving less profit.

CONCLUSION

Results suggest that ARCR yields similar clinical results but at a higher cost compared with MORCR.

Arthroscopic repair of full-thickness tears of the rotator cuff in patients younger than 40 years

PURPOSE

Recent reports document excellent outcomes with arthroscopic repair of rotator cuff tears (RCT). However, full-thickness RCT are uncommon in patients younger than 40 years, and few reports document results after repair in this population. The purpose of this study is to retrospectively report results of arthroscopic repair of full-thickness RCT in patients younger than 40 years.

METHODS

Twenty-three consecutive patients younger than 40 years with full-thickness RCT underwent arthroscopic repair with suture anchors. Mean age was 37 years (range, 21 to 39). The mean size of RCT was 2.4 cm in the largest dimension (range, 1 to 4 cm). The mean number of anchors used was 2.5 (range, 1 to 4). Concomitant procedures included subacromial decompression (22), distal clavicle resection (13), SLAP repair (2), biceps tenodesis (2), anterior capsulorraphy (1), and capsular releases (1), and were performed at the discretion of the surgeon. Twenty-two patients (95%) recalled a single incipient trauma; two patients sustained a dislocation. Ten patients (43%) claimed Workers' Compensation (WC). Minimum follow-up was 24 months, and mean follow-up was 26 months (range, 24 to 29).

RESULTS

Mean preoperative American Shoulder and Elbow Surgeon's (ASES) self-report score was 42 (range, 22 to 60); the mean postoperative score was 92 (range, 65 to 100; P < .01). Twenty-one patients (90%) returned to their previous level of activity and employment, including 9 (90%) with WC claims. All patients (100%) reported diminished pain, and 22 (95%) reported improvement with activities of daily living. Complications included superficial wound infection (1) and axillary nerve palsy after initial dislocation (1). Given the choice, 22 patients (95%) would have same procedure again.

CONCLUSIONS

Excellent outcomes were observed following arthroscopic rotator cuff repair both with and without concomitant procedures in patients younger than 40 years. Full-thickness RCT in patients younger than 40 years appeared to be traumatic in etiology. Successful repair returns patients to their pre-injury level of function. These results support arthroscopic rotator cuff repair in young, active patients.

LEVEL OF EVIDENCE

Level IV, therapeutic case series.

The strength of the rotator cuff before and after subacromial injection of lidocaine

The purpose of this study was to evaluate the strength of the shoulder before and after the impingement test. This study included 153 cases of impingement syndrome, 20 cases of partial-thickness rotator cuff tear, and 60 cases of full-thickness rotator cuff tear. We divided each of the groups into 2 subgroups according to the mean percentage decrease in pain to evaluate the correlation between pain and muscle weakness. We also divided the impingement syndrome group into 2 groups based on stiffness. After the test, the subgroup with stiffness had a greater reduction in pain compared with the subgroup without stiffness. The results show no statistically significant difference in the strength of the shoulder, except for increased external rotation strength in patients with full-thickness rotator cuff tears and increased supraspinatus strength in patients with impingement syndrome with stiffness. In cases in which the continuity of the rotator cuff is maintained, pain is not an important factor in the cause of shoulder weakness. Preoperative muscle testing can be done despite pain, but if a full-thickness rotator cuff tear is confirmed, re-examination of external rotator strength is necessary. In patients with impingement syndrome, particularly with shoulder stiffness, supraspinatus strength can be decreased.

The results of arthroscopic versus mini-open repair for rotator cuff tears at mid-term follow-up

Background

To prospectively evaluate patients who underwent a "mini-open" repair versus a completely arthroscopic technique for small to large size rotator cuff tears.

Methods

Fifty-two patients underwent "mini-open" or all arthroscopic repair of a full thickness tear of the rotator cuff. Patients who complained of shoulder pain and/or weakness and who had failed a minimum of 6 weeks of physical therapy and had at least one sub-acromial injection were surgical candidates. Pre and post-operative clinical evaluations included the following: 1) demographics; 2) Simple Shoulder Test (SST); 3) University of California, Los Angeles (UCLA) rating scale; 4) visual analog pain assessment (VAS); and 5) pre-op SF12 assessment. Descriptive analysis was performed for patient demographics and for all variables. Pre and post outcome scores, range of motion and pain scale were compared using paired t-tests. Analysis of variance (ANOVA) was used to evaluate any effect between dependent and independent variables. Significance was set at p is less than or equal to 0.05.

Results

There were 31 females and 21 males. The average follow-up was 50.6 months (27 – 84 months). The average age was similar between the two groups [arthroscopic x = 55 years/mini-open x = 58 years, p = 0.7]. Twenty-seven patients underwent arthroscopic repair and 25 underwent repair with a mini-open incision. The average rotator cuff tear size was 3.1 cm (range: 1–5 centimeters). There was no significant difference in tear size between the two groups (arthroscopic group = 2.9 cm/mini-open group = 3.2 cm, p = 0.3). Overall, there was a significant improvement from pre-operative status in shoulder pain, shoulder function as measured on the Simple Shoulder test and UCLA Shoulder Form. Visual analog pain improved, on average, 4.4 points and the most recent Short Shoulder Form and UCLA scores were 8 and 26 respectively. Both active and passive glenohumeral joint range of motion improved significantly from pre-operatively.

Conclusion

Based upon the number available, we found no statistical difference in outcome between the two groups, indicating that either procedure is efficacious in the treatment of small and medium size rotator cuff tears.

Level of Evidence

Type III

MR imaging of the rotator cuff

MR imaging is the optimal method for evaluating suspected rotator cuff pathology. Current techniques of fast spin-echo imaging without and with fat suppression allow accurate identification and characterization of tendinous and myotendinous abnormalities of the rotator cuff. Impingement disorders, tendon degeneration, instability,and trauma comprise the multifactorial nature of rotator cuff disease. This article addresses the role of MR imaging in evaluating the rotator cuff and the importance of MR imaging in identifying other lesions that may mimic rotator cuff pathology. A rationale for protocol design, including MR arthrography and the use of specialized positioning, such as abduction and external rotation (ABER), are discussed.

MR Imaging of Rotator Cuff Injury: What the Clinician Needs to Know

The rotator cuff muscles generate torque forces to move the humerus while acting in concord to produce balanced compressive forces to stabilize the glenohumeral joint. Thus, rotator cuff tears are often associated with loss of shoulder strength and stability, which are crucial for optimal shoulder function. The dimensions and extent of rotator cuff tears, the condition of the involved tendon, tear morphologic features, involvement of the subscapularis and infraspinatus tendons or of contiguous structures (eg, rotator interval, long head of the biceps brachii tendon, specific cuff tendons), and evidence of muscle atrophy may all have implications for rotator cuff treatment and prognosis. Magnetic resonance imaging can demonstrate the extent and configuration of rotator cuff abnormalities, suggest mechanical imbalance within the cuff, and document abnormalities of the cuff muscles and adjacent structures. A thorough understanding of the anatomy and function of the rotator cuff and of the consequences of rotator cuff disorders is essential for optimal treatment planning and prognostic accuracy. Identifying the disorder, understanding the potential clinical consequences, and reporting all relevant findings at rotator cuff imaging are also essential.

Étude par arthroscanner de la cicatrisation tendineuse après réparation arthroscopique de la coiffe des rotateurs

PURPOSE OF THE STUDY

Arthroscopic repair of rotator cuff tears is a well described technique with good clinical results. The purpose of this work was to use the arthro-CT-scan to evaluate tendon healing after arthroscopic repair and search for epidemiological, anatomic and technical factors predictive of tendon healing.

MATERIAL AND METHOD

This prospective consecutive series included 167 non-randomized shoulders. All patients underwent a preoperative assessment using the crude Constant score and a standard x-ray protocol to evaluate cuff status. Cuff repairs were all performed arthroscopically. The crude Constant score was used to follow patients. A control arthroscan was obtained in 148 patients.

RESULTS

Mean patient age was 59 years, 46% men and 77% dominant side. Mean duration of symptoms before repair was nine months. The tears resulted from trauma in 28%, including 9% occupational accidents. The preoperative mean crude Constant score was 52.4 (range 15-77). An isolated tear of the supraspinatus was observed in 68%. Frontal retraction of the supraspinatus was distal in 74%. In 29 cases, reduction was difficult. The quality of the tendon was considered normal in 56 cases and non-anatomic repair was necessary in six. At last follow-up (19 months on average) the mean crude Constant score was 80 (range 49-95). Arthro-CT-scan was performed to control healing in 148 patients and revealed anatomic healing in 69, defective healing in 27, and repeated tears in 52 shoulders. Factors predictive of healing were: tear less than six months old, sedentary occupational activity, non-dominant side, young patient, female gender, isolated small non-retracted tear of the supraspinatus, normal appearance of an easily reduced tendon, and good bone quality.

DISCUSSION

Time from tear to repair was long in this series. Tendon and muscle changes occurring after the injury could explain in part the healing failures.

CONCLUSION

But this study confirmed good functional and anatomic results given by arthroscopic repair of rotator cuff tears.

A comparison of arthroscopic and open rotator cuff repair

PURPOSE

The purpose of this study was to compare the results of all-arthroscopic repair of full-thickness rotator cuff tears including massive tear with those of open repair.

TYPE OF STUDY

Nonrandomized control study.

METHODS

We evaluated 100 consecutive patients (100 shoulders) who were treated for full-thickness rotator cuff tears either by all-arthroscopic (50 patients) or open repair (50 patients). The mean age was 57 years (range, 24 to 78 years). The mean follow-up period was 49 months (range, 25 to 83 months). Of all the patients, 7 had a small tear, 63 a medium tear, 17 a large tear, and 13 a massive tear; in the arthroscopic group, 5 had a small tear, 28 a medium tear, 9 a large tear, and 8 a massive tear. The results of the arthroscopic and open groups were compared using the shoulder rating scale of the University of California at Los Angeles (UCLA) and the Japanese Orthopaedic Association (JOA).

RESULTS

The 2 groups were statistically similar in terms of age, gender, trauma incidence, tear size, duration of symptoms, and preoperative shoulder scores. The UCLA and JOA scores improved significantly in both groups postoperatively. Outcomes and the postoperative UCLA and JOA scores were not significantly different between the 2 groups. The postoperative UCLA and JOA scores in patients with a large-to-massive tear were significantly lower than those with a small-to-medium tear, but outcomes were not statistically different between the arthroscopic and open groups depending on the tear size. The percentage of satisfactory results of arthroscopic and open repair for small-to-medium tears was 97.0% and 94.6%, respectively. Those of arthroscopic and open repair for large-to-massive tears was 82.4% and 76.9%, respectively.

CONCLUSIONS

Arthroscopic repair of small-to-massive tears had outcomes equivalent to those of open repair. Outcomes in patients with large-to-massive tears were inferior to those in patients with small-to-medium tears, regardless of repair method.

LEVEL OF EVIDENCE

Level III, case-control study.

Arthroscopic versus mini-open rotator cuff repair: a comparison of clinical outcomes and patient satisfaction

This study compares the results of arthroscopic and arthroscopically assisted mini-open rotator cuff repair in a series of 84 patients who underwent repair of small, medium, or large tears between March 1997 and September 2001 with at least 2 years of follow-up. There were 42 arthroscopic repairs and 42 mini-open repairs. Of the patients, 81 (96.4%) had good or excellent UCLA (University of California, Los Angeles) scores (40 arthroscopic repairs [95.2%] and 41 mini-open repairs [97.6%]); there were 2 fair results and 1 poor outcome. The ASES (American Shoulder and Elbow Surgeons) scores averaged 91.1 for the arthroscopic group and 90.2 for the mini-open group (P > .05). Six patients required further surgery (three from the arthroscopic group and three from the mini-open group). Of 84 patients, 83 (98.8%) reported being satisfied with the procedure. At greater than 2 years of follow-up, arthroscopic and mini-open rotator cuff repairs produced similar results for small, medium, and large rotator cuff tears with equivalent patient satisfaction rates.

Functional outcome and health-related quality of life after surgical repair of full-thickness rotator cuff tear using a mini-open technique

BACKGROUND

Rotator cuff tear, a common shoulder injury, can lead to shoulder pain and functional loss.

HYPOTHESIS

Surgical repair of full-thickness rotator cuff tears using the mini-open surgical technique will improve shoulder function and health-related quality of life.

STUDY DESIGN

Cohort study. Level of evidence, 2.

METHODS

Patients with a full-thickness rotator cuff tear who underwent a mini-open repair were evaluated for (1) active shoulder range of motion preoperatively, and 6 months and 12 months postoperatively and (2) health-related quality of life preoperatively, 6 months postoperatively, and annually up to 5 years postoperatively. Satisfaction with the repair and return to work status were ascertained 1 year postoperatively. A subgroup analysis of tear size and patient age was also undertaken.

RESULTS

Of the subjects, 61 (73%) were men, and the average age was 53.2 ( +/- 9.9) years. According to repeated-measures analysis of variance, shoulder range of motion (flexion and external rotation) improved significantly from before surgery to 1 year after surgery (P <.001). The mean American Shoulder and Elbow Surgeons scores improved from 53.3 ( +/- 20.6) preoperatively to 90.6 ( +/- 11.7) 1 year postoperatively (P <.001). The mean Western Ontario Rotator Cuff scores also improved from 43.2 ( +/- 20.2) preoperatively to 87.2 ( +/- 14.3) 1 year postoperatively (P <.001). No differences were seen in either the American Shoulder and Elbow Surgeons scores or Western Ontario Rotator Cuff scores between the 1-year examination and the last follow-up assessment undertaken at a median of 5 years postoperatively (P >.05). Ninety-six percent of patients were satisfied or very satisfied with the results of their repair; 78% of patients who were working before surgery returned to work without modification by 1 year postoperatively. For the most part, patient age and size of tear did not influence postoperative range of motion or health-related quality of life.

CONCLUSION

Mini-open rotator cuff repair led to improved shoulder function and health-related quality of life up to 5 years postoperatively.

A systematic approach to magnetic resonance imaging interpretation of sports medicine injuries of the shoulder

Magnetic resonance imaging has developed as a useful imaging modality in the evaluation of the athlete with shoulder pain. The multiplanar capabilities of magnetic resonance imaging make it ideal for detecting the anatomical variations of the osseous outlet that may contribute to the clinical syndrome of impingement. Its superb soft tissue contrast and spatial resolution allow for accurate differentiation between tendinopathy, partial-thickness tear, and full-thickness tear of the rotator cuff and also allow for detection of the subtle lesions of the capsule and labrum that are associated with shoulder instability. However, to accurately interpret the numerous images and pulse sequences obtained in a standard magnetic resonance examination of the shoulder, it is helpful to have a systematic approach to ensure that each of the pertinent anatomical structures are evaluated. This article will provide a systematic approach to the interpretation of a magnetic resonance examination of the shoulder. The normal imaging appearance of each anatomical structure will be described, and the most useful pulse sequences and imaging planes for the evaluation of each structure will be discussed. Finally, the signs of injury will be described and illustrated.

Accuracy of CT arthrography in the assessment of tears of the rotator cuff

CT arthrography and arthroscopy were used to assess tears of the rotator cuff in 259 shoulders. Tear size was determined in the frontal and sagittal planes according to the classification of the French Arthroscopy Society.

CT arthrography had a sensitivity of 99% and a specificity of 100% for the diagnosis of tears of supraspinatus. For infraspinatus these figures were 97.44% and 99.52%, respectively and, for subscapularis, 64.71% and 98.17%. For lesions of the long head of the biceps, the sensitivity was 45.76% and the specificity was 99.57%.

Our study showed an excellent correlation between CT arthrography and arthroscopy when assessing the extent of a rotator cuff tear. CT arthrography should, therefore, be an indispensable part of pre-operative assessment. It allows determination of whether a tear is reparable (retraction of the tendon and fatty degeneration of the corresponding muscle) and whether this is possible by arthroscopy (degree of tendon retraction and extension to subscapularis).

Arthroscopic versus mini-open rotator cuff repair: a cohort comparison study

PURPOSE

To critically compare arthroscopic and mini-open rotator cuff repair.

TYPE OF STUDY

Retrospective case control study.

METHODS

Nine patients who had an arthroscopic rotator cuff repair (ARCR) were matched for age, gender, dominance, side of injury, history of trauma, duration of symptoms, and type of rotator cuff injury, with 12 patients who had a mini-open rotator cuff repair (MOR). Comparison included a preoperative and postoperative physical examination as well as a completed Simple Shoulder Test (SST) questionnaire at the latest follow-up at a minimum of 27 months.

RESULTS

Both groups had significant reductions in pain scores (P < .01) and there was no significant difference in preoperative or postoperative active flexion or external rotation between both groups (P > .20). Although the ARCR group showed a significant improvement in strength (P < .01) and the MOR group did not, no patient had less than 4/5 strength. The impingement sign remained positive in 1 MOR patient, but all patients had a negative Jobe's test result. Pain and Tasks assessment by SST questionnaire showed that neither group had night pain or discomfort when using their arms overhead. There were no significant differences in the overall SST scores between groups.

CONCLUSIONS

Because all patients in each group were satisfied with the procedure and there were no objective differences in outcome, we conclude that there is no difference in outcome between ARCR and MOR. Thus, the choice of one approach over the other is best based on surgeon or patient preference.

LEVEL OF EVIDENCE

Level III, Retrospective Case Control Study.

Evaluation of interventions for rotator cuff pathology: a systematic review

A systematic review of published evidence was conducted investigating surgical and conservative management of rotator cuff disease. Medical databases searched included Medline, the Cumulative Index to Nursing and Allied Health Literature (CINAHL), the Physiotherapy Evidence Database (PEDro), and the Cochrane Collaboration library. Two independent reviewers evaluated each article for inclusion. Established criteria were used to assess the methodologic quality of articles examining outcomes of treatment interventions for rotator cuff disease. Due to the low methodologic quality of the studies that are currently available in this area, there is insufficient evidence to strongly support or refute the effectiveness of any available treatment intervention for rotator cuff pathology. The best available evidence supports open and primary surgery over arthroscopic debridement and revision surgery; and in the area of conservative management, electrotherapy, steroid use, exercise therapy, and acupuncture. There is a clear need for more methodologically sound studies to achieve strong evidence on which treatment practices can be based.

Arthroscopic rotator cuff repair: 4- to 10-year results

PURPOSE

The purpose of this article is to report the 4- to 10-year results of arthroscopic repair of full- thickness rotator cuff tears.

TYPE OF STUDY

This is a retrospective study evaluating a series of arthroscopic rotator cuff repairs performed by a single surgeon from February 1990 to February 1996.

METHODS

Retrospective chart reviews and telephone interviews were performed to evaluate the results of arthroscopic repair of rotator cuff tears. Results were evaluated using a modified University of California, Los Angeles (UCLA), shoulder scoring system.

RESULTS

One-hundred five arthroscopic rotator cuff repairs were performed in 104 patients between February 1990 and February 1996. Of these, 95 patients (96 shoulders) were available for follow-up evaluation at the time of this review. The mean UCLA score of all shoulders involved was 32. Fifty-one patients showed excellent results; 39, good; 2, fair; and 4, poor according to the modified UCLA scoring system. In no case was any loss of motion noted as a result of the surgical intervention.

CONCLUSIONS

This retrospective study is the largest series of arthroscopic rotator cuff repairs with the longest period of follow-up thus far reported. Of the patients available for follow-up evaluation, 94% of patients qualified as a good to excellent result according to the UCLA shoulder scoring system. This study shows that patients treated with this arthroscopic rotator cuff repair technique have maintained excellent clinical outcomes 4 to 10 years after surgery.

LEVEL OF EVIDENCE

Level IV.

Arthroscopic versus mini-open salvage repair of the rotator cuff tear: outcome analysis at 2 to 6 years' follow-up

PURPOSE

The purpose of this study was to compare the outcomes of arthroscopic repair of medium and large rotator cuff tears with the outcomes for mini-open repair of similar tears in which arthroscopic repair was technically unsuccessful.

TYPE OF STUDY

Retrospective case series.

METHODS

We evaluated 76 patients who were treated for full-thickness rotator cuff tears either by all-arthroscopic (42 patients) or mini-open salvage of technically unsuccessful arthroscopic repair (34 patients). Patients who had acromioclavicular arthritis, subscapularis tear, or instability were excluded. There were 39 men and 37 women, with a mean age of 56 years (range, 42 to 75 years). At a mean follow-up of 39 months (range, 24 to 64 months), the results of both groups were compared using the University of California Los Angeles and American Shoulder and Elbow Surgeons shoulder rating scales.

RESULTS

Shoulder scores improved in all ratings in both groups (P <.05). Overall, 66 patients showed excellent or good and 10 patients showed fair or poor scores by the University of California Los Angeles scale. Seventy-two patients satisfactorily returned to previous activity, and 4 showed unsatisfactory returns. The range of motion, strength, and patient satisfaction were improved postoperatively. No differences were seen in shoulder scores, pain, and activity return between the arthroscopic and mini-open salvage groups (P >.05). However, patients with larger tears showed lower shoulder scores and less predictable recovery of strength and function (P <.05). Postoperative pain was not different with respect to the size of the tear (P =.251).

CONCLUSIONS

Arthroscopic repair of medium and large full-thickness rotator cuff tears had an equal outcome to technically unsuccessful arthroscopic repairs, which were salvaged by conversion to a mini-open repair technique. Surgical outcome depended on the size of the tear, rather than the method of repair.

Primary fixation strength of rotator cuff repair techniques: a comparative study

PURPOSE

The goal of the study was to compare the primary fixation strength of transosseous suture, suture anchor, and hybrid repair techniques for rotator cuff repair.

TYPE OF STUDY

Animal model experiment.

METHODS

Thirty-two sheep shoulders were divided into 4 homogeneous groups, according to bone density and tendon dimensions. Infraspinatus tendons were transected from their insertions and reattached using 4 different techniques. Group 1 was repaired with a single Mason-Allen stitch and 2 transosseous tunnels for each end of the suture, knotted on the lateral cortex of proximal humerus; group 2 was repaired with double Mason-Allen stitches and 2 transosseous tunnels; group 3 was repaired with 2 Corkscrews (Arthrex, Germany); and group 4 was repaired with 2 Corkscrews combined with a single Mason-Allen transosseous suture. All specimens were tested for their fixation strengths with a material testing system.

RESULTS

The mode of failure in group 1 was mainly suture breakage. In groups 3 and 4, the tendons pulled out from the sutures. In group 2, sutures broke the bony bridge between the 2 tunnels. The mean load to failure value was 160.31 +/- 34.59 N in group 1, 199.36 +/- 11.73 N in group 2, 108.32 +/- 15.98 N in group 3, and 214.24 +/- 28.52 N in group 4. Anchor fixation was significantly weaker compared with other groups (P <.001). Combination of a transosseous suture and anchor fixation (group 4) was significantly stronger than the single transosseous suture (group 1) and double anchor techniques (group 3) (P <.001).

CONCLUSIONS

Hybrid technique was the strongest among the tested rotator cuff repair techniques. With the addition of one transosseous suture to two anchors, the strength of the repair could be doubled.

Surgical management of large rotator cuff tears combined with instability in elite rugby football players

Large rotator cuff tears are extremely uncommon in young people and when they occur they may be associated with shoulder instability. This paper reports on a series of six elite rugby union and rugby league footballers who presented with shoulder instability and large rotator cuff tears. They were treated with a two stage procedure: an open rotator cuff repair followed by an open shoulder stabilisation some 10 weeks later. All had successful outcomes. The paper also highlights the risk of tearing the rotator cuff when a patient continues to play contact sport with an untreated unstable shoulder.

Sonographic versus magnetic resonance arthrographic evaluation of full-thickness rotator cuff tears in millimeters

Preoperative knowledge of full-thickness rotator cuff tear size is important in counseling patients because tear size affects the choice of surgical techniques and the functional outcome of surgery. Twenty-six shoulders of twenty-five consecutive patients were included in a prospective study that compared the preoperative accuracy of magnetic resonance arthrography and ultrasonography for tear size in millimeters with intraoperative findings. No significant differences were found between intraoperative, ultrasonographic, and magnetic resonance arthrographic data for the width of tears. Adoption of a "curved line measurement" for ultrasonographic evaluation of large tears eliminated the tendency of ultrasonography to underestimate tears greater than or equal to 35 mm in width. No significant differences were found between intraoperative, ultrasonographic, and magnetic resonancearthrographic data for retraction of tears. However, a limitation of ultrasonography to evaluate retractions of more than 30 mm was found. Therefore, ultrasound is of equal value for tears less than 30 mm, but magnetic resonance arthrography is more accurate for tears greater than 30 mm.

Arthroscopic repair of full-thickness supraspinatus tears (small-to-medium): A prospective study with 2- to 4-year follow-up

PURPOSE

The objective of this study is to report on the complete arthroscopic repair of full-thickness tears of the supraspinatus.

TYPE OF STUDY

Prospective cohort study.

METHODS

Between 1995 and 1999, 139 full arthroscopic rotator cuff repairs were performed; 37 were repairs of full-thickness supraspinatus tears. Between 1997 and 1999, there were 24 patients who had a complete arthroscopic repair of supraspinatus tears. The preoperative and postoperative status of these patients was analyzed using the Constant score, American Shoulder and Elbow Society Index (ASES Index), a Visual Analog Pain Scale (VAS), a single question of percent function compared with the opposite unaffected extremity, and a single question reflecting satisfaction, "Would you undergo the surgery and the postoperative rehabilitation to achieve the result you have today?" There were 37 patients who had preoperative to postoperative VAS, percent function, postoperative acromiohumeral interval, and clinical rerupture incidences evaluated. The null hypothesis was tested and there was no difference between the preoperative to postoperative outcomes. Two groups were evaluated, those who had concomitant decompression and those who did not.

RESULTS

The null hypothesis was not supported. The 4 scoring systems used for evaluation showed statistically significant improvement from preoperative to postoperative. There were no differences in outcome based upon sex or age as a variable. All patients would have surgery again to achieve their postoperative state.

CONCLUSIONS

The arthroscopic repair of supraspinatus tears is effective for improving the functional status of the shoulder.

Magnetic resonance imaging of the shoulder: rotator cuff

Magnetic resonance imaging has proven to be useful in the assessment of rotator cuff injuries. Improvements in magnetic resonance techniques, including fast spin-echo imaging and fat saturation, have facilitated demonstration of tendinous abnormalities of the rotator cuff. Rotator cuff disease is multifactorial. Primary impingement within the coracoacromial arch, degeneration of the rotator cuff tendons, trauma, and glenohumeral instability may be contributing factors. Shoulder pain in athletes can be related to acute myotendinous and muscle injuries, which can be easily detected using magnetic resonance imaging.

Infraspinatus muscle atrophy: implications?

PURPOSE

To evaluate associated findings in patients who exhibited atrophy of infraspinatus muscle at magnetic resonance (MR) examination of their shoulders to clarify implications of this abnormality.

MATERIALS AND METHODS

With an electronic database search, cases of advanced infraspinatus muscle atrophy in patients who underwent MR imaging during a 1-year period for evaluation of shoulder pain or dysfunction were identified. The analysis was restricted to cases interpreted by one reader who applied a standardized method of reporting. Associated MR imaging findings in these cases were tabulated.

RESULTS

Advanced infraspinatus muscle atrophy was encountered in 51 (4.3%) of 1,191 MR examinations of the shoulder. Tears of the infraspinatus tendon were present in only 27 (53%) of 51 cases. In 46 (90%) of 51 cases, a full-thickness tear was present in the anterior portion of the rotator cuff. In 10 (20%) of 51 cases with infraspinatus muscle atrophy, cuff muscle atrophy was confined to the infraspinatus muscle. Cuff muscle atrophy was isolated to the infraspinatus muscle in four (17%) of 24 cases in which atrophy of the infraspinatus muscle was present despite an intact tendon. In none of the 51 cases was there a mass in the suprascapular or sphenoglenoid notch.

CONCLUSION

Infraspinatus muscle atrophy typically occurs with tendon tears in the anterior aspect of the rotator cuff. Concomitant atrophy in the supraspinatus muscle often is present, but infraspinatus muscle atrophy can occur in isolation, and this finding does not imply that the infraspinatus tendon is ruptured.

Arthroscopic assessment of full-thickness rotator cuff tears

SUMMARY

To evaluate the reliability of the arthroscopic assessment of full-thickness rotator cuff tears, 117 cases were prospectively investigated by imaging, arthroscopy, and open surgery. The confidence of the surgeon, his accuracy, and the surgeon-dependent character of arthroscopic assessment were evaluated in terms of the description of the main anatomic parameters. The surgeons were confident and accurate in diagnosing a full-thickness tear of the supraspinatus, but they underestimated its coronal and sagittal extent and its reducibility to the greater tuberosity. Conversely, the technique appeared very accurate in describing the rotator interval. Endoscopic assessment was particularly operator-dependent in the anteroposterior analysis of the tear. This study shows the limits of endoscopic assessment of full-thickness rotator cuff tears. It illustrates the need for an adequate arthroscopic technique with a thorough knowledge of normal and pathological anatomy of the rotator cuff.

Arthroscopically assisted mini-open rotator cuff repairs. Functional outcome at 2- to 7-year follow-up

The functional outcome of 22 consecutive patients with full-thickness rotator cuff tears repaired using an arthroscopically assisted technique was evaluated. The average follow-up was 39 months (24 to 80), and the average tear size was 3.5 cm (1 to 7). There were 14 men and 8 women, with a mean age of 56 years (29 to 80); 86% of patients (N = 19) were satisfied with the results of surgery and 95% (N = 21) had improvement of their symptoms. All patients had a statistically significant improvement in pain and active abduction in the scapular plane and in external rotation. Postoperative strength in external rotation and abduction averaged 95% and 97% of the contralateral shoulder, respectively. Preoperative duration of symptoms, strength, age, and tear size were found to be independent predictors of outcome. The average Constant and Murley score was 84 of 100, the average American Shoulder and Elbow Surgeons score was 81 of 100, and the average University of California, Los Angeles, score was 31 of 35. Our results show that an arthroscopically assisted repair of full-thickness, moderate-to-large rotator cuff tears using uniform surgical technique and rehabilitation protocols provides excellent outcome with regard to function, pain, and activities of daily living.