Biomaterial Database

Miyakawa patellectomy. 1988

C L Baker, and J C Hughston

Hughston Orthopaedic Clinic, Columbus, Georgia 31995.

A Miyakawa patellectomy was done in seventeen patients (twenty knees) for either osteoarthritis or chondromalacia of the patella, or both, secondary to malfunction of the extensor mechanism. Patients who had had a patellar fracture were not included in the series. The Miyakawa patellectomy realigns the extensor mechanism, with the proper tension, and centers the functional pull of the quadriceps tendon and patellar ligament. A superficial strip of the quadriceps tendon is pulled distally to fill the void that was left by removal of the patella and to maintain proper length. The musculotendinous portions of the vastus lateralis and vastus medialis are advanced over this defect in the midline and are sutured to the quadriceps tendon. The average length of follow-up was 13.8 years (range, 3.6 to 31.7 years). Nineteen of the twenty knees had a good or excellent subjective result and eighteen had a good or excellent objective result. No subsequent surgical treatment was needed for problems that were caused by malfunction of the extensor mechanism of the knee.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008722	Methods	A series of steps taken in order to conduct research.	Techniques,Methodological Studies,Methodological Study,Procedures,Studies, Methodological,Study, Methodological,Method,Procedure,Technique
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D010003	Osteoarthritis	A progressive, degenerative joint disease, the most common form of arthritis, especially in older persons. The disease is thought to result not from the aging process but from biochemical changes and biomechanical stresses affecting articular cartilage. In the foreign literature it is often called osteoarthrosis deformans.	Arthritis, Degenerative,Osteoarthrosis,Osteoarthrosis Deformans,Arthroses,Arthrosis,Arthritides, Degenerative,Degenerative Arthritides,Degenerative Arthritis,Osteoarthritides,Osteoarthroses
D010329	Patella	The flat, triangular bone situated at the anterior part of the KNEE.	Knee Cap,Kneecap,Knee Caps,Kneecaps,Patellas
D005069	Evaluation Studies as Topic	Works about studies that determine the effectiveness or value of processes, personnel, and equipment, or the material on conducting such studies.	Critique,Evaluation Indexes,Evaluation Methodology,Evaluation Report,Evaluation Research,Methodology, Evaluation,Pre-Post Tests,Qualitative Evaluation,Quantitative Evaluation,Theoretical Effectiveness,Use-Effectiveness,Critiques,Effectiveness, Theoretical,Evaluation Methodologies,Evaluation Reports,Evaluation, Qualitative,Evaluation, Quantitative,Evaluations, Qualitative,Evaluations, Quantitative,Indexes, Evaluation,Methodologies, Evaluation,Pre Post Tests,Pre-Post Test,Qualitative Evaluations,Quantitative Evaluations,Report, Evaluation,Reports, Evaluation,Research, Evaluation,Test, Pre-Post,Tests, Pre-Post,Use Effectiveness
D005260	Female		Females
D005500	Follow-Up Studies	Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease.	Followup Studies,Follow Up Studies,Follow-Up Study,Followup Study,Studies, Follow-Up,Studies, Followup,Study, Follow-Up,Study, Followup
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults