The editorial board of Orthopedics Today was asked what they think are the top advances in orthopedic surgery over the past 30 years.
It is now estimated that up to 80% of orthopedic procedures are amenable to the outpatient setting and many orthopedic practices have sophisticated imaging capabilities in their office and surgery centers.
The shortened recovery and associated disability with less invasive and more stable and rigid fixation have allowed patients to be more functional sooner, and reduced the morbidity of some of the previous approaches.
More recently, steady improvement in arthroscopic techniques and instrumentation and expanded use in the hip joint has furthered this subspecialty area of orthopedics.
Improvements and innovations in materials, articulation surfaces, peri- and postoperative management strategies and outcomes research have worked together during the last 30 years to decrease implant wear and increase function following joint replacement procedures.
Hip arthroplasty has benefited from the advent of porous metals, improvements in alternative bearing surface technologies, polyethylene advances and newer procedures, such as resurfacing surgery.
Some of the developments that have enhanced knee arthroplasty over the past 30 years include unicompartmental implants, modular components, fixed and mobile bearing designs, newer polyethylenes and computer assistance.
Characteristics of current knee designs that he thought to be associated with long-term in vivo durability as:
– articular surface congruency of either cruciate retaining or posterior stabilized implants;
– minimal motion between the polyethylene and tibial base plate or elimination of motion, as in monoblock implants;
– non-aged, compression molded polyethylene with moderate crosslinking, sterilized in an inert environment;
– CoCr tibial and CoCr or ceramic coated (Oxinium) femoral components;
– mobile bearing implants; and
– congruous, capacious patellar-femoral designs.
In order to be associated with long-term in vivo durability, these designs must be inserted with instrumentation that assures consistent alignment, soft tissue balance in flexion and extension and appropriate stability,
Imaging and its use in improving outcomes in orthopedic surgery have developed concurrently throughout the past 30 years, with smaller and more convenient methods giving physicians a wider range of possibilities. Even MRI and CT have seen recent changes in their implementation, with surgeons moving toward utilizing them for patient-specific implants or guides.