Acetabularization as a Protective Factor in Rotator Cuff Arthropathy

A clinical and radiological cross-sectional evaluation of 65 shoulders with rotator cuff arthropathy by measuring the range of motion (RoM) of the shoulder, the Constant-Murley score, and the radiological classifications of Hamada and Seebauer. The clinical findings were compared with the radiographic findings.

Results

According to the classification of Seebauer, we observed better results regarding the RoM in type-A shoulders. There was a statistically significant difference regarding anterior elevation and medial rotation between types A and B (p < 0.05). Lateral rotation did not show a statistically significant difference between types A and B. The Constant-Murley score presented better results in type A, and there was a statistically significant difference between groups A and B (p < 0.05). According to the classification of Hamada, we observed that the RoM had better results in types 3, 2 and 1, and there was a statistically significant difference regarding anterior elevation and medial rotation (p < 0.05) compared with groups 4A, 4B and 5. There was no statistically significant difference between the Hamada groups regarding lateral rotation. According to Hamada, the Constant-Murley score showed better results in types 3, 1 and 2, and there was a statistically significant difference between groups 3 and 5.

Conclusion

The RoM and shoulder function were better in patients with acetabularization (Seebauer 1A and Hamada 3), and worse in those with glenohumeral arthrosis (Seebauer 1B, 2B and Hamada 4A, 4B and 5).

Keywords
rotator cuff tear arthropathy; shoulder joint; rotator cuff injuries

Seebauer		Type 1A		Type 1B		Type 2A		Type 2B		Total		p-value
Seebauer		n	%	n	%	n	%	n	%	n	%	p-value
Long head of the biceps	Absent	9	33.3%	5	62.5%	12	50.0%	5	83.3%	31	47.7%	0.110
Long head of the biceps	Present	18	66.7%	3	37.5%	12	50.0%	1	16.7%	34	52.3%	0.110
Subscapular	Complete injury	6	22.2%	3	37.5%	5	20.8%	4	66.7%	18	27.7%	0.489
	Partial injury	15	55.6%	4	50.0%	11	45.8%	1	16.7%	31	47.7%
	Normal	0	0.0%	0	0.0%	1	4.2%	0	0.0%	1	1.5%
	Tendinopathy	6	22.2%	1	12.5%	7	29.2%	1	16.7%	15	23.1%

HAMADA		Type 1		Type 2		Type 3		Type 4A		Type 4B		Type 5		Total		p-value
HAMADA		n	%	n	%	n	%	n	%	n	%	n	%	n	%	p-value
Long head of the biceps	Absent	4	36.4%	2	16.7%	8	44.4%	6	75.0%	7	77.8%	4	57.1%	31	47.7%	0.048
Long head of the biceps	Present	7	63.6%	10	83.3%	10	55.6%	2	25.0%	2	22.2%	3	42.9%	34	52.3%	0.048
Subscapular	Complete injury	0	0.0%	4	33.3%	3	16.7%	4	50.0%	4	44.4%	3	42.9%	18	27.7%	0.427
	Partial injury	9	81.8%	4	33.3%	9	50.0%	3	37.5%	4	44.4%	2	28.6%	31	47.7%
	Normal	0	0.0%	0	0.0%	1	5.6%	0	0.0%	0	0.0%	0	0.0%	1	1.5%
	Tendinopathy	2	18.2%	4	33.3%	5	27.8%	1	12.5%	1	11.1%	2	28.6%	15	23.1%

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[1] Address for correspondence Leonardo Roure Esteves, Departamento de Ortopedia e Traumatologia, Universidade Federal de São Paulo (Unifesp), Rua Borges Lagoa 570, Vila Clementino, São Paulo, SP, 04038-000, Brazil (e-mail: leo_esteves@hotmail.com).

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Acetabularization as a Protective Factor in Rotator Cuff Arthropathy* * Work performed at the Center os Sports Traumatology (CETE), Departament of Orthopedics and Traumatology, Universidade Federal de São Paulo (Unifesp), São Paulo, SP, Brazil.

Abstract

Objective

Methods

Results

Conclusion

Acetabularization as a Protective Factor in Rotator Cuff Arthropathy^* * Work performed at the Center os Sports Traumatology (CETE), Departament of Orthopedics and Traumatology, Universidade Federal de São Paulo (Unifesp), São Paulo, SP, Brazil.