Tag Archives: weightbearing

Weightbearing Foot AP Lateral
4
Feb

Overview

Weightbearing foot radiographs assess alignment and joint space under physiologic load. AP and lateral weightbearing views reveal flatfoot cavus deformity and joint collapse not seen on non weightbearing studies. These views guide orthotic and surgical planning.

Technique

Obtain AP and lateral radiographs with the patient standing and bearing equal weight on both feet. Center the detector to the mid foot and use appropriate exposure for increased soft tissue thickness. Ensure consistent foot positioning for serial comparison.

Clinical Indications

Weightbearing foot views are indicated for deformity assessment hallux valgus and arthritis evaluation. They reveal functional collapse and alignment issues relevant to treatment. Non weightbearing views may underestimate deformity severity.

Image Assessment

Evaluate arch height talonavicular coverage and metatarsal alignment under load. Assess joint space narrowing and subluxation. Report findings relevant to orthotic prescription and surgical planning.

Foot Lateral
4
Feb

Overview

The lateral foot radiograph profiles the longitudinal arch calcaneus and tarsal alignment. The foot is positioned in true lateral with the medial and lateral aspects superimposed. This view is important for assessing arch collapse and calcaneal fractures.

Technique

Place the foot in true lateral and center the detector to include the calcaneus and metatarsals. Use appropriate exposure and immobilize the foot to minimize motion. Weightbearing lateral views assess functional alignment.

Clinical Indications

Lateral foot is indicated for trauma suspected calcaneal fracture and arch assessment. It complements AP and oblique views for comprehensive evaluation. Weightbearing studies evaluate functional deformities.

Image Assessment

Evaluate calcaneal morphology talar alignment and plantar arch height. Inspect for posterior facet fractures and subtalar joint involvement. Document findings relevant to surgical planning and orthotic management.

Knee AP Weightbearing
4
Feb

Overview

AP weightbearing knee radiographs evaluate joint space narrowing and alignment under physiologic load. The patient stands with equal weight on both legs and the detector centered to the knees. This view is important for osteoarthritis assessment and preoperative planning.

Technique

Position the patient standing with knees extended and center the detector to the joint line. Use consistent weightbearing technique and include both knees for comparison when indicated. Collimate to the knee and use appropriate exposure.

Clinical Indications

Weightbearing AP knee is indicated for osteoarthritis evaluation and symptomatic joint assessment. It reveals joint space narrowing and varus or valgus deformity under load. Non weightbearing views may underestimate degenerative change.

Image Assessment

Assess medial and lateral joint spaces alignment and presence of osteophytes. Evaluate subchondral sclerosis and cystic change. Report findings relevant to conservative or surgical management.

Forefoot Weightbearing AP Oblique
4
Feb

Overview

Weightbearing AP oblique forefoot radiographs assess metatarsal alignment and forefoot deformities under physiologic load. The oblique projection profiles the lateral column and metatarsal heads. These views are useful for hallux valgus and metatarsal pathology assessment.

Technique

Obtain the oblique projection with the patient standing and bearing weight equally. Center to the metatarsal heads and use appropriate exposure for increased soft tissue thickness. Ensure consistent foot rotation for serial comparison.

Clinical Indications

Weightbearing oblique views are indicated for deformity assessment forefoot pain and preoperative planning. They reveal functional alignment and joint subluxation not seen on non weightbearing studies. Orthotic and surgical planning rely on weightbearing imaging.

Image Assessment

Evaluate metatarsal alignment hallux valgus angle and joint congruity under load. Assess for metatarsal head overload and subluxation. Report findings relevant to podiatric or orthopedic management.