Elderly patients with lesser trochanter fractures can regain walking ability by using a hip-flexor-suppressing pendular gait strategy. This method relies on trunk forward inclination and pelvic rotation to move the leg, rather than active hip flexion. It reduces pain and mechanical stress on the iliopsoas muscle during the healing process.
How do patients walk without active hip flexion?
Traditional walking patterns require the hip flexor muscles to pull the leg forward. However, a recent clinical case report describes a 79-year-old man who successfully walked using a “pendular” motion instead. According to the report, this patient used his trunk and pelvis to swing his leg forward, bypassing the need for direct muscle activation at the hip.
This strategy involves leaning the upper body forward. This forward tilt shifts the body’s center of mass, which helps the leg swing like a pendulum. By using the weight of the body and pelvic rotation, the patient could move his limb without triggering the intense pain usually caused by hip flexion.
The iliopsoas muscle attaches directly to the lesser trochanter. When this area is fractured, any attempt to flex the hip can pull on the bone fragment, causing significant pain and potentially delaying healing.
What is a pendular gait strategy?
A pendular gait strategy is a compensatory movement pattern. Instead of using the hip flexors to lift the leg, the person uses coordinated body movements to create momentum. The clinical report defines this as a “hip-flexor-suppressing” technique.
The mechanics work through three main components:
- Trunk forward inclination: Leaning the torso forward to shift the center of gravity.
- Pelvic rotation: Moving the hips to assist the swing of the leg.
- Stance stability: Using the unaffected limb as a stable pivot point for the movement.
This approach effectively redistributes the physical workload. Rather than putting the stress on the healing fracture site, the movement is driven by the dynamics of the trunk and pelvis.
How did the patient’s mobility improve over seven weeks?
The patient, a 79-year-old man with chronic heart failure, underwent intramedullary nail fixation for a right hip fracture. At the two-week postoperative mark, he required total assistance for basic movements like getting out of bed. His pain level was high, rated at a 7 on the 11-point Numerical Rating Scale (NRS).
The rehabilitation team implemented a specific program. They avoided straight leg raises and active hip flexion exercises to minimize traction stress. Instead, they focused on quadriceps isometric exercises and pelvic rotation. The results showed a steady recovery:
| Postoperative Week | Pain Level (NRS) | Mobility Status |
|---|---|---|
| Week 2 | 7 | Total assistance required |
| Week 4 | 4 | Limited limb advancement |
| Week 6 | 3 | Walking 25 meters |
| Week 7 | 2 | 10-m walk test completed |
By week seven, the patient achieved a walking speed of 0.23 meters per second using a forearm-support walker. His pain had dropped significantly to a 2 on the NRS scale.
When assisting someone with a hip injury, observe if they are leaning forward or rotating their hips to move. These “compensatory” movements are often the body’s way of protecting the injury site while maintaining mobility.
Why is this important for elderly rehabilitation?
Most traditional rehabilitation protocols focus on muscle strengthening. While strength is important, this case suggests that movement adaptation might be more critical for elderly patients in the early stages of healing. For those with lesser trochanter fractures, trying to “strengthen” the hip flexors too early can cause direct mechanical stress on the fracture.
This shift in thinking—from pure muscle building to functional adaptation—could help prevent functional decline in older populations. If a patient can learn to walk using alternative body mechanics, they can maintain independence even while their muscles are still recovering from surgery or injury.
Experts note that this pendular gait is likely a temporary adaptation. As the bone heals and pain decreases, patients can eventually transition back to more standard walking patterns. The goal is to bridge the gap between surgery and full recovery without causing setbacks through excessive pain.
Frequently Asked Questions
What is a lesser trochanter fracture?
It is a break in a small bony prominence on the side of the upper femur (thigh bone). This area is where major hip flexor muscles attach.
Can you walk after a hip fracture?
Yes, but the method depends on the type of fracture and the surgical repair. Many patients use walkers or specialized gait strategies to move safely during recovery.
How long does hip fracture recovery take?
Recovery varies widely based on age and health. As seen in this case, significant functional improvements can occur within seven weeks, though full recovery may take longer.
Have you or a loved one navigated hip fracture recovery? We want to hear your experiences. Leave a comment below or subscribe to our newsletter for more healthcare insights.
