Classifications in Brief: Hamada Classification of Massive Rotator Cuff Tears

Brolin, Tyler J.; Updegrove, Gary F.; Horneff, John G.

doi:10.1007/s11999-017-5340-7

Cited by 39 publications

(30 citation statements)

References 13 publications

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“…Third, the surgical technique was heterogenous; patients were treated with either the deltoid or deltopectoral approach and received cemented and uncemented implants, a situation that reflects typical clinical practice. Lastly, while the Hamada classification reports on glenohumeral joint degeneration, it does not consider morphologic changes in the glenoid and thus may be more useful to classify early stages of massive rotator cuff tears [4,5]. Later stages of the disease may be better addressed using the Seebauer, Sirveaux, or Favard classifications [2,3,29].…”

Section: Discussionmentioning

confidence: 99%

Reverse total shoulder arthroplasty in massive rotator cuff tears: does the Hamada classification predict clinical outcomes?

Kääb

Kohut

Irlenbusch³

et al. 2021

Arch Orthop Trauma Surg

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Introduction Reverse total shoulder arthroplasty (RTSA) is a widely recognized treatment to reduce pain and improve shoulder function for patients in various disease stages of cuff tear arthropathy (CTA). However, it remains unclear whether outcomes after RTSA depend on the preoperative stage of CTA. Therefore, this study evaluated whether the Hamada classification influences midterm clinical outcomes after RTSA. Materials and methods In this multicenter observational study, patients underwent inverted bearing RTSA for massive rotator cuff tears or CTA. Shoulders were grouped into those with (Hamada grades 4a, 4b, and 5) and those without (Hamada grades 1, 2, and 3) glenohumeral arthritis. Clinical outcomes, including range of motion, Constant score, American Shoulder and Elbow Surgeons score, and visual analog scale for pain and satisfaction, were determined preoperatively and at 24 and > 30 months. All complications were recorded, and survival free from any implant component revision was calculated. Results Overall, 202 patients (211 shoulders) were treated with RTSA at a mean age of 75.8 ± 6.6 years (range 41.9–91.6 years). Of these, 144 patients (151 shoulders) were available for a mean follow-up of 79.9 ± 24.7 months (range 30.2–132.3 months). No significant between-group differences were found for clinical outcomes at 24 and > 30 months (P > 0.05). Furthermore, the Hamada classification did not correlate with clinical outcomes at 24 (P = 0.98) and > 30 months (P = 0.29). Revision-free implant component survival was similar between groups (P = 0.17). Postoperative complications were found in 11 shoulders, of which 10 required revision. Conclusions Inverted bearing RTSA was found to be an effective treatment with similarly good midterm clinical outcomes, similar revision rates, and high implant survival rates in every stage of massive rotator cuff tears. Overall, the preoperative Hamada classification did not influence clinical outcomes or complications after RTSA.

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Section: Discussionmentioning

confidence: 99%

Reverse total shoulder arthroplasty in massive rotator cuff tears: does the Hamada classification predict clinical outcomes?

Kääb

Kohut

Irlenbusch³

et al. 2021

Arch Orthop Trauma Surg

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“…The rotator cuff tendon damage was radiologically scored with Hamada classification [11]. For the CT-based evaluation of primary arthropathies, Walch [12] classification was applied.…”

Section: Clinical and Radiological Evaluation Of Degenerative Changesmentioning

confidence: 99%

Thermogravimetric analysis of cancellous bone of humerus head in patients undergoing total shoulder arthroplasty

Bata

Nöt

Szabó³

et al. 2021

J Therm Anal Calorim

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Prior to shoulder replacement, the quality of cancellous bone stock of humerus head should be evaluated. Thermogravimetric analysis (TGA) has already been utilized to assess thermal stability of cancellous bone mineral, collected from the femoral head of patients with osteoarthritis and osteoporosis. Our workgroup has recently examined the thermal parameters of rotator cuff of patients undergoing reversed shoulder replacement. We hypothesized that TGA of humerus head would indicate difference in the bone quality of orthopedic and trauma patients. We also hypothesized that the calorimetric data could correlate with the grade of degenerative changes. Cylindrical subchondral humeral head samples were collected from patients subjected to reversed shoulder replacement due to orthopedic or trauma indications. Then, calorimetric parameters were measured using DTA/TG analysis. Radiological evaluation was also performed to classify the grade of osteoarthritis. In case of orthopedic samples, the calorimetric parameters indicated a moderate to severe degree of bone damage and loss of mineralization, because of the progressed osteoarthritis. Meanwhile, the trauma samples exhibited only moderate or minimal subchondral bone degeneration. DTA curves showed different patterns and indicated shifts in transition temperatures, comparing control and pathologic samples. In addition, correlation was found between the degree of osteoarthritis and calorimetric enthalpy. DTA/TG analysis of humerus head samples indicated marked differences in bone quality of orthopedic and trauma patients. Further investigation is needed to differentiate the calorimetric parameters of different layers of subchondral bone.

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“…The rotator cuff tendon damage was scored with Hamada classification [12,13], for evaluation of primary arthropathies and cartilage damage, Walch [14] and Outerbridge [15,16] classifications were used, respectively. Radiological analysis of conventional X-rays, CT (Siemens Somatom Perspective Dual 64/128) and MRI (Siemens Magnetom Essenza 1.5 T) images was performed by using Siemens Syngo.via software (Siemens Healthineers Global).…”

Section: Clinical and Radiological Evaluation Of Rotator Cuff Damagementioning

confidence: 99%

DSC examination of rotator cuff damage in patients with total shoulder arthroplasty

Nöt

Bata

Szabó³

et al. 2020

J Therm Anal Calorim

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The assessment of rotator cuff tear prior to shoulder replacement is based on the physical findings and imaging procedures, preferably magnetic resonance imaging (MRI). However, MRI is not always available, and in trauma patients, the CT-scan-based classification of glenohumeral arthritis or tendon damage is generally not applicable. In case of 4-part dislocated proximal humerus fractures the right diagnosis is crucial prior to choose between different type protheses or osteosyntheses. Therefore, there is a need for novel methods for the evaluation of rotator cuff damage. Our aim was to evaluate whether differential scanning calorimetry (DSC) could determine the grade of rotator cuff damage in patients undergoing shoulder replacement. Small samples of rotator cuff tendons of patients undergoing reversed shoulder replacement due to orthopedic or trauma indications were resected during surgery, and thermal parameters were measured using DSC. Radiological evaluation was also performed to classify the degree of rotator cuff damage and glenohumeral arthritis. In case of orthopedic samples, the consequence of advanced tendon damage was well demonstrated by the shape and the running of the curves, compared to the control sample. In trauma samples, the moderately degenerated tendons also exhibited significant difference from the control in the shape of the scans and in the thermal parameters. DSC curves demonstrated a clear difference in the thermal parameters of healthy and pathologic samples. DSC could be a useful additional method in the evaluation of rotator cuff tear arthropathies in future studies.

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Classifications in Brief: Hamada Classification of Massive Rotator Cuff Tears

Cited by 39 publications

References 13 publications

Reverse total shoulder arthroplasty in massive rotator cuff tears: does the Hamada classification predict clinical outcomes?

Reverse total shoulder arthroplasty in massive rotator cuff tears: does the Hamada classification predict clinical outcomes?

Thermogravimetric analysis of cancellous bone of humerus head in patients undergoing total shoulder arthroplasty

DSC examination of rotator cuff damage in patients with total shoulder arthroplasty

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