Posterior Shoulder Tightness: To Treat or Not to Treat?

Area of Science:

• Orthopedics
• Sports Medicine
• Physical Therapy

Background:

• Shoulder pain is a prevalent musculoskeletal issue due to the shoulder's biomechanical complexity and its role in hand function.
• Posterior shoulder tightness (PST) is frequently observed in patients with shoulder pain, prompting debate regarding its clinical significance and treatability.
• PST is indicated by range-of-motion deficits, potentially stemming from humeral retrotorsion, reduced posterior capsule extensibility, or decreased posterior muscle/tendon extensibility.

Purpose of the Study:

• To debate the clinical question of whether to treat posterior shoulder tightness (PST) when present.
• To evaluate the potential impact of physical therapy interventions on the specific tissue alterations contributing to PST.

Main Methods:

• This viewpoint discusses the clinical indicators and potential underlying tissue alterations of PST.
• It critically examines the current understanding of how these alterations affect shoulder function and health.
• The authors propose a perspective on the efficacy of physical therapy interventions for PST.

Main Results:

• The significance and interplay of the three identified tissue alterations (humeral retrotorsion, posterior capsule tightness, posterior muscle tightness) in PST remain unclear.
• The extent to which these impairments can be resolved by interventions is also unknown.
• The authors propose that physical therapy interventions may only effectively address one of the three contributing tissue alterations.

Conclusions:

• The clinical decision to treat PST requires careful consideration due to the unclear impact of its underlying tissue alterations.
• Physical therapy interventions show potential for improving only a subset of the factors contributing to PST.
• Further research is needed to clarify the specific effects of interventions on the different tissue alterations associated with PST.