When the rotator cuff — the group of muscles and tendons that power shoulder movement — is completely and irreparably destroyed, a conventional shoulder replacement simply cannot work. Reverse shoulder replacement was specifically engineered to solve this problem: to restore arm elevation and eliminate shoulder pain even when the rotator cuff no longer exists.
Dr. Harish Talreja is an experienced orthopaedic specialist in Jaipur performing reverse shoulder arthroplasty (RSA) at Manipal Hospital Jaipur — offering this advanced procedure for rotator cuff arthropathy, severe shoulder arthritis, complex fractures and failed previous shoulder surgery.
Understanding why the anatomy is reversed is the key to understanding why this procedure achieves what a conventional replacement cannot. The deltoid becomes the engine of the arm instead of the rotator cuff.
In a normal shoulder and conventional total shoulder replacement, the humeral head (ball) sits in the glenoid socket. The rotator cuff compresses the ball into the socket, creating a stable fulcrum. Without this compression force, the deltoid simply levers the ball upward and out of the socket — lifting the arm is impossible.
By placing the metal ball (glenosphere) on the glenoid side and the socket on the humeral side, the centre of rotation is moved medially and inferiorly. This fundamentally changes the deltoid's mechanical advantage — the deltoid can now pull the arm downward and inward, creating a stable fulcrum that lifts the arm even without any rotator cuff contribution.
These are the hallmark symptoms of rotator cuff arthropathy and severe rotator cuff failure — the conditions most commonly treated with reverse shoulder replacement.
Pseudo-paralysis — the arm hangs limply and cannot be actively elevated despite full passive movement. The defining sign of massive rotator cuff failure.
Pain present at rest, at night and with any attempted movement. Worse than typical arthritis pain — driven by both joint destruction and cuff absence.
Audible and palpable crunching as the superior-migrated humeral head grinds against the eroded acromion and glenoid — bone-on-bone contact.
Cannot dress independently, lift a cup, comb hair or sleep on the affected side. The shoulder pain and weakness significantly impact quality of life.
Prior rotator cuff repair, hemiarthroplasty or total shoulder replacement that has not provided lasting relief or has developed new problems.
Upward displacement of the humeral head visible on plain X-ray — the radiographic hallmark of massive cuff tear and early rotator cuff arthropathy.
Reverse shoulder replacement is performed under general anaesthesia in 1.5 to 2.5 hours. Most patients are discharged after 1 to 2 days. The deltopectoral (front) approach is most commonly used — providing excellent access to both the glenoid and humerus.
General anaesthesia combined with interscalene nerve block for post-operative pain control. Beach-chair or lateral decubitus position. Fluoroscopy available for intraoperative guidance.
Incision along the deltopectoral groove. The subscapularis tendon is carefully released (preserved where possible). The humeral head is removed. The humeral canal is reamed and the humeral stem sized and implanted.
The glenoid is reamed to expose cancellous bone. The glenosphere baseplate is fixed to the glenoid with a central peg and multiple peripheral screws. Correct inferior tilt (10–15°) is confirmed to reduce scapular notching risk. The metal glenosphere is attached to the baseplate.
The polyethylene humeral cup (socket) is seated on the humeral stem. The shoulder is reduced and stability, range of motion and deltoid tension are confirmed through a full arc of passive movement before final implant sizing and closure.
Subscapularis repair where possible. Wound closed in layers. Arm placed in shoulder immobiliser sling. Physiotherapy begins Day 1. Discharge Day 1 to 2 post-surgery.
RSA has a well-documented complication profile. The overall complication rate is 10 to 15% in experienced hands. All risks are discussed in full during pre-operative consultation — the risk-benefit profile is typically very favourable given the severity of the underlying condition.
Inferior glenoid bone loss due to contact between the humeral cup and glenoid — the most common radiographic finding. Rarely symptomatic clinically. Minimised by appropriate inferior glenosphere tilt and lateralised implant design.
Post-operative dislocation of the reverse replacement — less common than in total hip replacement due to the constrained socket design. Risk is higher in revision cases. Managed by closed reduction or revision surgery.
Periprosthetic joint infection — risk is higher in revision cases (up to 5–10%). Prophylactic antibiotics and strict surgical technique minimise primary infection risk. Treatment requires implant removal, antibiotic spacer, and revision surgery.
Axillary nerve or brachial plexus injury from positioning, retraction or arm lengthening. Most are neurapraxias that recover spontaneously. Careful surgical technique and appropriate arm lengthening minimise this risk.
Loosening or fracture of the glenoid baseplate — typically related to poor initial fixation, glenoid bone quality or infection. Revision surgery is required if this occurs.
After RSA, external rotation strength may be limited particularly if the subscapularis and infraspinatus are absent. Latissimus dorsi transfer may be considered in select cases to improve external rotation function.
Recovery from RSA is generally faster in the early phase than patients expect — most are surprised by the rapid improvement in pain and initial arm movement. Full strength takes longer as the deltoid adapts to its new role as the primary arm elevator.
Physiotherapy begins Day 1 — passive pendulum exercises. Pain managed with nerve block + oral medication. Discharge Day 1 to 2.
Sling worn. Passive assisted ROM exercises — physiotherapist moves the arm. Most patients already sleeping better by 2 weeks.
Sling discontinued. Active arm exercises. Return to light daily activities. Driving with surgeon clearance. Significant pain improvement.
Progressive deltoid strengthening. Arm elevation improving. Most patients can comb hair, dress and perform light cooking tasks comfortably.
Full functional recovery. Light recreational activities. Long-term: avoid lifting over 5–10 kg and high-impact sport to protect the implant.
RSA is generally more expensive than total shoulder replacement due to the complexity of the implant system. A personalised estimate is provided after consultation and imaging review.
Costs include implant, surgery, hospital stay and post-operative care.
Dr. Harish Talreja brings specific expertise in reverse shoulder arthroplasty — with pre-operative CT templating, appropriate glenosphere selection (standard vs lateralised), optimal inferior tilt to minimise notching, and a structured post-operative rehabilitation programme focused on deltoid re-education.
Joint Replacement Procedures
Years Experience
Both Types Available
Book a consultation with Dr. Harish Talreja — expert assessment, CT-based surgical planning, and the right shoulder replacement for your specific condition.
Shop No. 2/34, A Block
Vaishali Estate Township, Gandhi Path West
Jaipur – 302021
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