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. 2022 Aug 12;6(6):1023-1028.
doi: 10.1016/j.jseint.2022.07.013. eCollection 2022 Nov.

Arthroscopic Latarjet procedure does not lead to loss of clinically significant external rotation at 0° and 90° of shoulder abduction

Michael Bodine  1 , Shariff K Bishai  1 , Guy R S Ball  1 , Cameron N King  1 , Lydia Wait  1 , Grace D Brannan  1
Affiliations

Arthroscopic Latarjet procedure does not lead to loss of clinically significant external rotation at 0° and 90° of shoulder abduction

Michael Bodine et al. JSES Int. .

Abstract

Background: Several reports have shown that shoulder stabilizing procedures lead to postoperative external rotation (ER) deficits. However, no study on arthroscopic Latarjet procedures has investigated the effect on ER when the arm is abducted at 0° (ER0) and 90° (ER90). This study examined the relationship between the arthroscopic Latarjet procedure and the subsequent effect on ER0 and ER90.

Methods: Patients who underwent an arthroscopic Latarjet procedure from December 2015 to April 2021 were retrospectively evaluated. Preoperative ER0 and ER90 values were obtained from the contralateral shoulder. ER0 and ER90 values from the operative side were collected at both 3 and 6 months postoperatively. A repeated measures ANOVA was performed to assess the mean preoperative and postoperative values.

Results: Forty-six patients met the inclusion criteria. Mean ER0 for the 3- and 6-month time frames measured 44.2° and 54.6°, respectively. Mean ER90 for the 3- and 6-month time frames measured 78.4° and 90.4°, respectively. Comparison to the contralateral arm at the 3-month follow-up period showed a deficit of 14.9° (P = .0001) and 17.2° (P = .0001) for ER0 and ER90, respectively. At the 6-month follow-up period, patients demonstrated an average decline in ER0 and ER90 of 4.57° (P = .063) and 5.11° (P = .008), respectively.

Conclusion: A nominal deficit in ER occurred for both ER0 and ER90 status post arthroscopic Latarjet procedure. Despite loss of ER90 at 6 months achieving statistical significance, the clinical impact is arguably inconsequential. Such limited loss of ER provides more information regarding bony procedures being a more definitive treatment for glenohumeral instability and the ability to restore native motion.

Keywords: Boney Bankart; External rotation; Glenohumeral instability; Latarjet procedure; Range of motion; Shoulder arthroscopy.

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Figures

Figure 1
Figure 1
Demonstration of neutral (0°) shoulder ER90. The subject in the photos has provided consent for their use. ER, external rotation.
Figure 2
Figure 2
Demonstration of 90° value of ER90. The subject in the photos has provided consent for their use. ER, external rotation.
Figure 3
Figure 3
Comparison of ER0 and ER90 values. The preoperative value was obtained from the uninjured, contralateral extremity. Values at both 3 and 6 months post-operatively were measured using the operative extremity. ER, external rotation.
See this image and copyright information in PMC

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