open access

Vol 23, No 5 (2018)
Original research articles
Published online: 2018-09-01
Submitted: 2018-01-29
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Assessment of biomechanical parameters of the shoulder joint at the operated side versus non-operated side in patients treated surgically for breast cancer

Marta Liszka, Włodzimierz Samborski
DOI: 10.1016/j.rpor.2018.07.001
·
Rep Pract Oncol Radiother 2018;23(5):378-383.

open access

Vol 23, No 5 (2018)
Original research articles
Published online: 2018-09-01
Submitted: 2018-01-29

Abstract

Aim

Isokinetic assessment of biomechanical parameters of the shoulder joint at the operated side versus non-operated side in patients treated surgically for breast cancer according to the type of surgery performed.

Background

Despite significant progress in medicine, comprehensive cancer therapy may still cause a number of undesired structural and functional effects. The most frequent complications include long-term weakening of muscles within the shoulder and upper extremity at the operated side.

Materials and methods

The study enrolled 57 patient, divided into two groups: mastectomy and BCT. Diagnostic tests were carried out on the groups to assess biomechanical parameters (peak torque, power, total work) of the shoulder joint in internal and external rotation.

Results

The results of the isokinetic test revealed a considerable reduction of dynamic properties of the muscle groups responsible for the function of the shoulder joint at the operated side. The deficits observed, depending on the angular speed and plane of rotation, were from 22.3% to 32.7% and from 23.1% to 29.4% for muscle power and total work, respectively. The least noticeable loss was that of muscular torque, ranging from 6.5% to 18.3%.

Conclusion

None of the treatment methods applied ensured a full release of the restriction within the shoulder and upper limb. The deficits observed may constitute a serious disorder of the musculoskeletal system; therefore, a clinical study of biomechanical parameters of the shoulder joint may be an important control of patients’ functional status after breast cancer treatment.

Abstract

Aim

Isokinetic assessment of biomechanical parameters of the shoulder joint at the operated side versus non-operated side in patients treated surgically for breast cancer according to the type of surgery performed.

Background

Despite significant progress in medicine, comprehensive cancer therapy may still cause a number of undesired structural and functional effects. The most frequent complications include long-term weakening of muscles within the shoulder and upper extremity at the operated side.

Materials and methods

The study enrolled 57 patient, divided into two groups: mastectomy and BCT. Diagnostic tests were carried out on the groups to assess biomechanical parameters (peak torque, power, total work) of the shoulder joint in internal and external rotation.

Results

The results of the isokinetic test revealed a considerable reduction of dynamic properties of the muscle groups responsible for the function of the shoulder joint at the operated side. The deficits observed, depending on the angular speed and plane of rotation, were from 22.3% to 32.7% and from 23.1% to 29.4% for muscle power and total work, respectively. The least noticeable loss was that of muscular torque, ranging from 6.5% to 18.3%.

Conclusion

None of the treatment methods applied ensured a full release of the restriction within the shoulder and upper limb. The deficits observed may constitute a serious disorder of the musculoskeletal system; therefore, a clinical study of biomechanical parameters of the shoulder joint may be an important control of patients’ functional status after breast cancer treatment.

Get Citation

Keywords

Breast cancer; Mastectomy; Breast Conserving Therapy; Isokinetic testing

About this article
Title

Assessment of biomechanical parameters of the shoulder joint at the operated side versus non-operated side in patients treated surgically for breast cancer

Journal

Reports of Practical Oncology and Radiotherapy

Issue

Vol 23, No 5 (2018)

Pages

378-383

Published online

2018-09-01

DOI

10.1016/j.rpor.2018.07.001

Bibliographic record

Rep Pract Oncol Radiother 2018;23(5):378-383.

Keywords

Breast cancer
Mastectomy
Breast Conserving Therapy
Isokinetic testing

Authors

Marta Liszka
Włodzimierz Samborski

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