Why Is My Shoulder Still Stiff 3 Months After Shoulder Replacement?
Updated: Sep 5
Stiffness is common because the joint has been operated on, tissues are healing and the shoulder is deliberately protected early on. The solution is usually graded movement within the surgeon’s protocol, not forcing the shoulder. A shoulder that is becoming progressively more restricted or remains markedly limited should be reviewed. This article explains what usually matters, what you can do safely and when it is worth asking for a review.
Why this can happen after shoulder replacement
A shoulder replacement is major surgery. Bone, capsule, muscle, tendon and skin have all been affected, and the arm is often held in a sling for a period afterwards. Pain, swelling, stiffness, altered sensation and weakness can therefore overlap. The pattern matters more than one isolated symptom: expected postoperative symptoms should gradually become easier, even if progress is uneven from day to day. Activity can temporarily increase discomfort, particularly later in the day, but repeated large flare-ups usually mean the amount, range or load needs reviewing.
What should you do in practice?
Use your own post-operative protocol as the starting point. Keep the hand, wrist and elbow moving as permitted, complete the shoulder exercises you were specifically given and avoid adding heavy resistance simply because the shoulder feels good on one day. If an exercise produces a mild short-lived ache that settles, that can be different from sharp pain, a sudden clunk, marked swelling or symptoms that remain significantly worse into the next day. Progress only one variable at a time where possible: range, repetitions, resistance or task difficulty.
It is also useful to watch movement quality. During shoulder elevation, excessive shrugging, leaning the trunk or holding the breath can allow you to reach higher without the shoulder actually controlling the movement well. A physiotherapist can modify the exercise so that range and strength improve without simply reinforcing compensation. For everyday tasks, start close to the body and at waist or chest height before progressing to heavier or more awkward positions.
A structured shoulder replacement rehabilitation plan
A good programme should explain not only which exercises to do but why they are being used, which movements are currently protected, how to recognise that an exercise is too difficult and how to progress from mobility into strength and function. It should also cover practical issues such as sleeping, dressing, washing, sling use, driving, household tasks and returning to hobbies. That is why a structured guide can be more useful than collecting isolated exercises from different websites with different protocols.
If you need advice tailored to you, book a physiotherapy assessment.
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