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Related Concept Videos

Angle of Twist: Problem Solving01:13

Angle of Twist: Problem Solving

An electric motor applies a torque of 700 N·m to an aluminum shaft, triggering a stable rotation. Two pulleys, B and C, are subjected to torques of 300 N·m and 400 N·m, respectively. The modulus of rigidity is provided as 25 GPa. With the knowledge of the length and diameter of each segment, the twist angle between the two pulleys can be computed. First, a section cut is made between pulleys B and C, and the cut cross-section is analyzed using a free-body diagram. Given that the torque exerted...
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Open repairs with biceps rerouting does not impact retears in large to massive rotator cuff tears compared to conventional open repair: a randomized clinical trial.

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Updated: Jul 24, 2026

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Predictive Factors for the Healing of Rotator Cuff Repairs.

Rodrigo A Beraldo1,2, Jorge H Assunção1,3, Paulo V Helito4,5

  • 1Orthopaedics and Traumatology, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, BRA.

Cureus
|September 23, 2024
PubMed
Summary

Male sex, smoking, and specific tear types predict rotator cuff repair failure. Traumatic tears, however, promote healing after rotator cuff surgery, improving patient outcomes.

Keywords:
arthroscopic rotator cuff repaircombination of risk factorspredictive retear factorspreoperative factorsrotator cuff reteartendon integrity

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Area of Science:

  • Orthopedic Surgery
  • Musculoskeletal Research
  • Biomedical Engineering

Background:

  • Rotator cuff tears (RCTs) are a common cause of shoulder pain and disability.
  • Despite frequent surgical repair, retear rates remain high, with unclear causative factors.
  • Understanding predictors of healing failure is crucial for improving patient outcomes.

Purpose of the Study:

  • To identify preoperative patient and tear characteristics influencing structural healing after rotator cuff repair.
  • To develop a prognostic model for predicting retear after arthroscopic rotator cuff surgery.

Main Methods:

  • Prospective data from a retrospective cohort of 176 patients undergoing arthroscopic RCT repair (2013-2022).
  • Magnetic resonance imaging (MRI) at 12 months postoperatively assessed structural integrity.
  • Multivariate logistic regression analyzed preoperative factors predicting retear and healing.

Main Results:

  • The retear rate was 35.2%.
  • Predictive factors for non-healing included male sex, smoking, full-thickness infraspinatus tears, and long head of biceps instability.
  • Traumatic lesions were associated with favorable tendon healing.

Conclusions:

  • Male sex, smoking, specific tear characteristics (infraspinatus, biceps instability) are significant predictors of retear.
  • Traumatic rotator cuff tears demonstrate a propensity for better healing post-repair.
  • Identifying these factors can guide surgical decision-making and patient counseling.