A threshold of lower preoperative mental health is associated with decreased achievement of comfort and capability benchmarks following rotator cuff repair: a retrospective cohort study

Abstract

Background: Preoperative biomedical patient characteristics are known to affect the time to achievement of clinically significant outcomes (CSOs) following arthroscopic rotator cuff repair (RCR). However, less is known about the association between preoperative mental status and the time to achievement of CSOs. We hypothesize that higher preoperative mental status is associated with faster achievement of CSOs following arthroscopic RCR.

Methods: Patient-reported outcome measures (PROMs) were collected preoperatively and at postoperative intervals up to 2 years. PROMs included pain visual analog scale (VAS), American Shoulder and Elbow Surgeons Standardized Shoulder Assessment Form (ASES), Single Assessment Numeric Evaluation (SANE), and Veterans RAND 12-Item Health Survey (VR-12) scores. Threshold values for CSOs were obtained from previous literature. Mean time to achievement of CSOs was calculated using a Kaplan-Meier analysis. A Cox proportional hazards regression analysis was performed to identify preoperative variables associated with earlier achievement of CSOs.

Results: Sixty-nine patients with an average age of 59 ± 8 years were included. Patients with higher preoperative mental status, as measured by VR-12 mental component summary (MCS), experienced significantly earlier substantial pain improvement postoperatively (P = .0471). Patients with higher preoperative mental status also achieved CSOs for physical health at earlier time points (P = .0187). Preoperative VR-12 MCS scores ≥ 40 were associated with earlier achievement of CSOs for pain (P = .0005) and physical health (P = .0015). Ninety-eight percent of patients with preoperative MCS scores ≥40 achieved acceptable pain relief at 4.5 months vs. 56% of all other patients at 12.3 months (P = .0001). Patients with preoperative MCS scores ≥40 experienced significantly faster improvement in physical health compared to patients with preoperative MCS scores <40 (P = .0006).

Conclusions: Higher preoperative mental status, especially a preoperative MCS score ≥40, is associated with significantly faster improvement in pain and physical function following arthroscopic RCR. Nearly all patients (98%) with preoperative MCS score ≥40 achieved an acceptable state of pain relief compared with only 56% of patients with preoperative MCS score <40. These findings indicate that a holistic approach with equal consideration of preoperative mental health and rotator cuff pathophysiology is vital to the successful management of rotator cuff tendinopathy.

Keywords: Arthroscopy; mental health; pain; patient reported outcome measures; prognosis; rotator cuff injuries; shoulder.