Biomedical subjects

K H Noll

Publications and source records attributed to K H Noll.

3 recordsLinked to original sources

PubMed2001

The use of orthotic devices in adult acquired flatfoot deformity.

PTT dysfunction is the most common cause of adult acquired flat foot deformity. The aggressive nonoperative approach has become accepted more widely, in part because of the advances in orthotic and bracing technology and options. Many patients with a PTT dysfunction can be treated effectively with conservative management protocols. The goal of alleviating pain and correcting deformities is being accomplished with the proper application of the wide spectrum of orthotic modalities available today.

Adult↗

PubMed2001

Postsurgical orthotic devices.

Custom-made orthotic devices are beneficial as preoperative and postoperative modalities. The decision to institute conservative treatment such as casting and orthotic appliances depends largely on the pathologic condition the patient presents with, the overall medical and social status of the patient, and the desired results the physician wants to achieve. Orthoses, prostheses, and bracing have evolved from tedious and labor-intensive leather and metal components to technically advanced plastics, composites, and computer-generated efficient and patient-friendly modalities. With the incorporation of human biomechanics and engineering as well as the introduction of human performance laboratories and the shared knowledge from these disciplines, the field of orthoses and prostheses continues to expand for the benefit of those who must rely on man-made devices to augment daily living activities.

Ankle↗

PubMed2001

Biomechanical evaluation of the ability of casts and braces to immobilize the ankle and hindfoot.

We evaluated the ability of seven devices to immobilize a prosthetic ankle-foot complex against plantarflexion, dorsiflexion, inversion, and eversion forces: two casts (plaster of Paris and Fiberglas) and five removable braces (molded ankle/foot orthosis, composite boot brace, pneumatic boot walker, nonarticulating fracture boot, and ankle stirrup). Each device was applied to a prosthetic ankle-foot complex and evaluated on a test frame for resistance to sagittal motion and coronal torque. Results showed that casts offered significantly (P < or = 0.05) more resistance to motion in all directions tested than did the braces. The resistance offered by the devices tested depends on the conformity of the device to the shape of the foot in that plane and the material properties of the device. Braces offer the advantage of being easily removed and reapplied. Different braces offer specific advantages and disadvantages in different planes tested, and immobilization selection should be individualized based on this information.

Ankle↗