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Biomedical subjects

F C Reynolds

Publications and source records attributed to F C Reynolds.

11 recordsLinked to original sources
PubMed1979

Acute effect of open joint wounds on articular cartilage and synovium in rabbits.

Open joint wounds were made in immature and mature rabbit knees by surgical arthrotomy. The wounds of the right knees were packed open for 5 days and the left knee wounds were closed primarily. The biochemical studies were selected to determine the effect of our treatment regimen on changes in the metabolism of articular cartilage and synovium. Neither closed nor open treatment produced significant changes in enzyme activities measured in the articular cartilage as compared to the controls in either immature or mature rabbits. Most of the synovial enzymes were elevated in the injured joints. There were, however, no significant differences in enzyme activity between the joints treated by either open or closed methods. Our findings suggest that short-term open treatment wounds does not cause matrix degradation in the cartilage nor affect the synovium more than simple arthrotomy.

Acetylgalactosamine↗
PubMed1974

The non-operative treatment of collateral ligament injuries of the knee in professional football players. An analysis of seventy-four injuries treated non-operatively and twenty-four injuries treated surgically.

Seventy-four ligamentous injuries of the knee in professional football players were managed without surgery during thirteen seasons of play. A success rate of 98 per cent in this group was contrasted to a success rate of 74 per cent in twenty-four patients treated with surgery in the same period. The criteria for patient selection included stability of the knee, absence of bone injury, and progressive improvement during conservative therapy. The treatment regimen avoided the use of casts and emphasized motion and exercises.

Athletic Injuries↗
PubMedDate not supplied

Tibiofibular synostosis and recurrent ankle sprains in high performance athletes.

Recent evidence points toward a weight bearing and dynamic stabilizing function of the distal fibula in ankle joint mechanics. When fibular rotation and translation are restricted, ankle pain during weight bearing and push off often (but not always) results. The case histories of six professional athletes with distal tibial synostosis resulting from internal rotation-inversion injury confirm recent reports of ankle disability resulting from restriction of fibular motion, but suggest that there may be many patients with this lesion who are not disabled. Two patients with incomplete synostosis were asymptomatic, and one with complete synostosis had only occasional pain after vigorous exercise.

Adult↗
PubMedDate not supplied

The acute effects of periosteal stripping and medullary reaming on regional bone blood flow.

The immediate effects of surgical dissection on regional bone blood flow were studied using the hydrogen washout technique and the results were compared in mature and immature rabbits. Epiphyseal circulation in young animals was eliminated by stripping the epiphyseal periosteum, and even in mature rabbits epiphyseal blood flow was markedly reduced by periosteal stripping. This suggests that after skeletal maturity blood supply crossing from the metaphysis into the epiphysis is limited. The blood flow rate was not altered by wide reaming of the epiphyseal center in either young or old animals. The rates of bone blood flow in the metaphysis and diaphysis were not altered by separate periosteal stripping or medullary reaming in either age group. Combined reaming and stripping eliminated blood flow in the diaphyseal cortical bone, but in the metaphysis fairly rapid blood flow remained even after reaming and periosteal stripping were done. These findings suggest that arterial supply and venous drainage traverse both endosteal and periosteal surfaces, and either system is capable of sustaining adequate bone tissue circulation.

Animals↗