ROTATING HINGE VERSUS CONSTRAINED CONDYLAR KNEE REPLACEMENT: WHICH ONE IS ACTUALLY MORE CONSTRAINED? A FINITE ELEMENT STUDY

Rotating Hinge Versus Constrained Condylar Knee Replacement: Which One Is Actually More Constrained?

Outcomes of Varus Valgus Constrained Versus Rotating-Hinge Implants in Total Knee Arthroplasty.

The stability of a total knee arthroplasty is determined by the ability of the prosthesis components in concert with supportive bone and soft tissue structures to sufficiently resist deforming forces transmitted across the knee joint. Constrained prostheses are used in unstable knees due to their ability to resist varus and valgus transformative forces across the knee. Constraint requires inher...

Knee Arthroplasty Revision with a Constrained Implant Using Hinge and Rotating Tibial Basis.

OBJECTIVE To evaluate the results of total knee arthoplasty revisions performed in high complexity cases, with large bone defects or serious ligament deficiencies using a constrained implant hinge associated to a rotating tibial basis. METHODS We evaluated 11 patients in which we used the constrained implant hinge associated to rotating tibial basis, with minimum follow-up of two years. The i...

Indications and Results of Condylar Constrained Implant in Primary Total Knee Replacement

Total knee arthroplasty (TKA) is nowadays a successful and valid procedure to restore proper function and give pain relief in patients with severe Knee osteoarthritis. This pathology has many clinical presentations and any patient arrives at physician’s observation with different impairments of knee joint. Certainly to obtain a good result is necessary to restore a wide range of motion with a c...

Long-term outcomes of primary constrained condylar knee arthroplasty.

BACKGROUND Although constrained condylar knee (CCK) inserts are widely used for total knee arthroplasty (TKA), their long-term outcomes remain unclear. We sought to evaluate patients with at least 10 years' follow-up after CCK TKA to identify potential adverse events (osteolysis, loosening, constraint-mechanism failure), assess functional outcomes with special emphasis on range of motion, and d...

Revision Total Knee Arthroplasty Using the Modern Constrained Condylar Knee Prosthesis

OBJECTIVE To determine whether the second-generation constrained condylar prosthesis provided satisfactory results in revision total knee arthroplasty. METHODS A series of 41 cases of revision total knee arthroplasty using the second-generation constrained condylar knee prosthesis was reviewed. The series comprised 7 men and 34 women with a mean age of 73.2 years. The original diagnosis was p...