The Bold 19th-Century Experiment That Shaped Modern Orthopedic Medicine
In the late 1800s, medicine was entering a period of fearless discovery. Doctors were challenging traditional beliefs, experimenting with new techniques, and redefining what the human body could endure and overcome. Among these medical pioneers stood Dr. Lewis Albert Sayre, one of America’s first orthopedic surgeons — a man whose bold approach to spinal deformities changed the course of orthopedic history.

The Medical World of the 1870s
The 1870s were a fascinating era for medicine. Anesthesia and antiseptic surgery were still in their infancy, and X-rays had not yet been discovered. Many conditions that are easily treated today were, at the time, lifelong disabilities. Spinal deformities such as scoliosis and kyphosis were especially misunderstood and often considered untreatable.
It was in this environment of uncertainty and experimentation that Dr. Lewis A. Sayre began his groundbreaking work. Based in New York, Sayre was known for his innovative thinking and willingness to test unconventional ideas — not for fame, but to find real solutions for patients who had no other hope.
The Gravity Experiment: Healing Through Suspension
Sayre believed that gravity itself could be used as a healing force. His theory was simple but daring: if the human body could be gently stretched, perhaps the curved spine could be realigned.
In his clinic, patients with severe scoliosis were suspended by their arms using a special harness. As they hung, their bodies elongated naturally under their own weight, allowing Sayre to observe how gravity affected the curvature of the spine. The sight was striking — patients dangling in midair, their backs slowly straightening as tension pulled at each vertebra.
This method, while primitive by today’s standards, was revolutionary for its time. It demonstrated that mechanical correction could improve spinal alignment and mobility, paving the way for future orthopedic treatments.

The Invention of the Plaster-of-Paris Jacket
Sayre’s next innovation was the introduction of the plaster-of-Paris “jacket.” While the patient remained suspended, Sayre wrapped the torso in layers of wet plaster bandages. When the plaster hardened, it formed a stiff, supportive cast that locked the spine in its corrected position.
The idea was both simple and ingenious. The cast acted as a brace, maintaining spinal alignment while allowing the patient to stand and move freely. For many, this meant the first real chance at mobility and independence after years of pain and physical limitation.
Although the treatment could be uncomfortable and difficult to endure, the results were often dramatic. Patients who had once relied on heavy metal braces found new possibilities for daily life, work, and social interaction.
Painful but Pioneering
By modern standards, Sayre’s methods might seem extreme — suspending patients by their arms, wrapping them in plaster while they hung motionless. Yet, within the context of 19th-century medicine, his work represented a leap forward in understanding the musculoskeletal system.
Sayre’s experiment was guided not by cruelty or spectacle, but by courage and compassion. He believed that orthopedic medicine should restore dignity and function, not just manage pain. His use of plaster casts would later influence surgical and rehabilitative techniques worldwide.

The Birth of Modern Orthopedics
Dr. Sayre’s innovations had far-reaching consequences. His plaster jacket technique became a standard in hospitals across Europe and America, and his work helped establish orthopedics as a distinct medical specialty.
He also emphasized public medical education, demonstrating his procedures at medical conferences and encouraging other doctors to adopt scientific observation over tradition. In doing so, Sayre became a bridge between the empirical medicine of the past and the evidence-based practice that defines healthcare today.
The Legacy of Lewis A. Sayre
Lewis Sayre’s contributions extend beyond the operating table. He was one of the founders of Bellevue Hospital Medical College and served as President of the American Medical Association in 1880 — a testament to the respect he earned among his peers.
His plaster-of-Paris jacket remained a cornerstone of spinal treatment for decades, until the development of modern braces and surgical correction methods in the 20th century. Yet even today, orthopedic specialists recognize his influence whenever they apply casts, corrective braces, or traction therapies.
Sayre’s story is also a reminder of the human side of medicine — of patients who literally hung by their arms in search of healing, and of a doctor who believed that hope and innovation were worth every risk.

Lessons from the Past
In a world of advanced robotics, digital imaging, and precision surgery, it’s easy to forget that medicine once relied on intuition, observation, and the courage to experiment. The story of Dr. Sayre reminds us that progress often begins with a single bold idea — one that challenges convention and dares to imagine better outcomes for patients.
Modern orthopedic care now benefits from safe, non-invasive techniques, but the pioneering spirit of the 1870s still lives on in every breakthrough. Sayre’s belief that structure can be healed through understanding, not fear, remains at the core of orthopedic philosophy.