Arthroscopic Removal of Chronic Symptomatic Calcifications of the Supraspinatus Tendon Without Acromioplasty: Analysis of Postoperative Recovery and Outcome Factors

Surgical approaches of shoulder calcific tendonitis: a systematic review and meta-analysis

Background

Calcific tendonitis is a painful shoulder disorder characterized by calcium deposits (CDs) in the rotator cuff tendon. This systematic review and meta-analysis examined the most efficient surgical procedure for calcific tendonitis. This includes the comparison between the three main surgical techniques: CD removal, CD removal with subacromial decompression (SAD) and CD removal with tendon repair with respect to functional outcomes and pain control scores.

Methods

Four electronic databases (MEDLINE, EMBASE, CINAHL, and Cochrane Central Register of Controlled Trials) were searched in February 2023. Studies were eligible for inclusion if they were peer-reviewed, and participants were patients diagnosed with calcific tendonitis of one or more rotator cuff tendon based on diagnostic imaging who underwent shoulder calcific tendonitis surgery. Other shoulder pathology diagnoses were excluded. Meta-analyses were conducted for results that were sufficiently homogeneous in terms of statistical, clinical, and methodological characteristics. Subgroup analyses were performed to determine if effect sizes differed based on the patient's position during the surgery, physiotherapy, and follow-up time.

Results

All surgical interventions resulted in significant improvements in shoulder function and pain control. There were no significant differences between CD removal vs. CD removal with SAD or CD removal vs. CD removal with tendon repair. However, there was a trend in favor of CD removal alone or CD removal with SAD approaches, as they provided better outcome scores than CD removal with tendon repair in terms of shoulder function and pain control.

Conclusions

All surgical interventions provide substantial improvement in shoulder functions and pain control scores with no significant difference between these surgical techniques.

Arthroscopic treatment of calcific tendinitis without rotator cuff repair using prospectively collected results

The treatment of calcific tendinitis can be either non-operative, which should always be the first step of treatment, or operative. In chronic calcifying tendinitis with insufficient conservative treatment, an arthroscopic excision of the calcification deposit may help, however, there is controversy about how it should be performed. This retrospective study, with prospectively collected results using the Surgical Outcome System™ (SOS, Arthrex®), evaluated the outcome of arthroscopic treatment of calcific tendinitis without rotator cuff repair. Outcome was measured by different scores such as Visual Analogue Scale (VAS), American Shoulder and Elbow Surgeons Evaluation Form (ASES) and Single Assessment Numeric Scale (SANE). 54 patients were included in the analysis (male: 19; female: 35), mean age at surgery was 51 (range, 37-68) years. All scores improved compared with final follow-up. VAS score improved from 5,3 ± 2,2 to 0,9 ± 1,3 (p<0,001). ASES score improved from 53,0 ± 17,0 to 92,2 ± 11,1 (p<0,001) and SANE score from 47,2 ± 17,8 to 92,1 ± 10,6 (p<0,001). Most improvement is seen in the first 3 months postoperatively but gradual progress is to be expected up until 2 years. No frozen shoulders or cuff tears were reported postoperatively. No reoperations were necessary during follow-up. A noticeable fast pain relief and functional recovery are seen when treating a patient with calcific tendinitis without repairing the rotator cuff. There were no patients with frozen shoulder postoperatively.

Calcifying tendinitis and outlet impingement - Evaluation of the prevalence analyzing radiological and intraoperative criteria

Introduction

The question of our study was to evaluate the incidence of coexisting outlet impingement among patients with calcifying tendinitis and a failure of the conservative treatment using intraoperative in addition to radiological criteria.This question is of clinical relevance as there is still a discussion about whether an additional arthroscopic subacromial decompression (ASD) should be performed when arthroscopic removal of the calcific deposits is needed.

Materials and methods

From February 2017 to 02/2018, we prospectively enrolled 50 patients who needed shoulder arthroscopy for calcifying tendinitis. We evaluated the x-rays for outlet impingement, measuring the lateral acromial angle (LAA), acromion slope, acromion index (AI) and Bigliani-type of the acromion. During shoulder arthroscopy, we evaluated the acromial undersurface for a bony impingement using a standardized view. If impingement was present, we performed an additional ASD. Before surgery, three months later and at final follow-up 20 months after surgery, we determined the relative Constant Score (rCS).

Results

92.5% of the patients had an intraoperatively confirmed outlet impingement, whereas 82.5% of the patients had a radiological outlet impingement. The sensitivity of the radiographs was 83.8%, the specificity 33.3% when combining all parameters. The mean rCS improved significantly from 45% to 100% at final follow-up.

Conclusion

Our results show that coexisting outlet impingement is very common in patients with calcifying tendinitis and failure of the conservative treatment. As the radiological diagnosis is uncertain, an intraoperative assessment for impingement is rational and justifies an additional ASD.

Functional Recovery of the Shoulder after Arthroscopic Treatment for Chronic Calcific Tendinitis

Background

We investigated the resolution of pain and functional recovery of shoulder after arthroscopic removal of calcific deposits in patients with chronic calcific tendinitis.

Methods

We enrolled 39 patients who were treated arthroscopically for chronic calcific tendinitis that had been non-responsive to at least 6 months of conservative treatment. We evaluated clinical outcome in terms of the American Shoulder Elbow Surgeons (ASES), the Constant score, the visual analogue score (VAS) for pain. We used plain radiography to measure the size of the calcific deposits. We also analyzed the clinical outcomes in terms of whether or not a cuff repair was performed or the degree of removal of calcific deposits.

Results

We found that complete resolution of pain took on average 5.7 months after the arthroscopic treatment. The ASES and the Constant score significantly improved from the 3-month follow-up, however it took 6 months until the scores reached on average 80 points or above. We found that these clinical outcomes at the final follow-up did not significantly differ by whether or not cuff repair was performed. Similarly, we found that the clinical outcomes did not significantly differ by the degree of calcium removal.

Conclusions

We found that arthroscopic removal of calcification leads to improved clinical outcomes in patients with chronic calcific tendinitis. However, our findings show it takes at least 6 months for the clinical improvement to become statistically significant. We also found that concomitant cuff repairs or the degree of removal of calcification does not affect the clinical outcome of the arthroscopic treatment.

Examination of concomitant glenohumeral pathologies in patients treated arthroscopically for calcific tendinitis of the shoulder and implications for routine diagnostic joint exploration

BACKGROUND

Glenohumeral exploration is routinely performed during arthroscopic removal of rotator cuff calcifications in patients with calcific tendinitis of the shoulder (CTS). However, evidence on the prevalence of intraarticular co-pathologies is lacking and the benefit of glenohumeral exploration remains elusive. The aim of the present study was to assess and quantify intraoperative pathologies during arthroscopic removal of rotator cuff calcifications in order to determine whether standardized diagnostic glenohumeral exploration appears justified in CTS patients.

METHODS

One hundred forty five patients undergoing arthroscopic removal of calcific depots (CD) that failed conservative treatment were included in a retrospective cohort study. Radiographic parameters including number/localization of calcifications and acromial types, intraoperative arthroscopic findings such as configuration of glenohumeral ligaments, articular cartilage injuries, and characteristics of calcifications and sonographic parameters (characteristics/localization of calcification) were recorded.

RESULTS

One hundred forty five patients were analyzed. All CDs were removed by elimination with a blunt hook probe via "squeeze-and-stir-technique" assessed postoperatively via conventional X-rays. Neither subacromial decompression nor refixation of the rotator cuff were performed in any patient. Prevalence of glenohumeral co-pathologies, such as partial tears of the proximal biceps tendon (2.1%), superior labral tears from anterior to posterior (SLAP) lesions (1.4%), and/or partial rotator cuff tears (0.7%) was low. Most frequently, glenohumeral articular cartilage was either entirely intact (ICRS grade 0 (humeral head/glenoid): 46%/48%) or showed very mild degenerative changes (ICRS grade 1: 30%/26%). Two patients (1.3%) required intraarticular surgical treatment due to a SLAP lesion type III (n = 1) and an intraarticular rupture of CD (n = 1).

CONCLUSIONS

Routine diagnostic glenohumeral exploration does not appear beneficial in arthroscopic treatment of CTS due to the low prevalence of intraarticular pathologies which most frequently do not require surgical treatment. Exploration of the glenohumeral joint in arthroscopic removal of CD should only be performed in case of founded suspicion of relevant concomitant intraarticular pathologies.