Can't Lift Your Leg to Get in the Car? What Your Hip Is Telling You

Why is getting into a car so hard on a sore hip?

Climbing into a car asks the hip to do several hard things at once. It has to bend deeply, rotate and lift the weight of the whole leg while you are seated low and twisted. A hip that is stiff, pinched or weak feels all of it in that one motion.

Lower cars and deep bucket seats make it harder because they force the hip to bend even further. Many people notice they can still walk reasonably well, yet the car, a low couch or putting on socks has become a struggle. That pattern points our team toward the hip joint and the muscles around it.

What usually causes trouble lifting the leg?

A handful of problems explain most cases. Where you feel the pain, and whether the leg is painful or truly weak, helps tell them apart.

• Hip arthritis: worn cartilage and bone spurs limit how far the hip bends, often with a groin ache and morning stiffness.
• Hip impingement (FAI): extra bone on the ball or socket pinches when the hip flexes and turns inward, which is exactly the car motion.
• Hip flexor or iliopsoas strain: pain at the front of the hip where the thigh meets the pelvis, often after a workout or sudden effort.
• Gluteal tendon problems: pain on the outside of the hip, sometimes with weakness if a tendon has torn.
• Pinched nerves in the lower back: weakness, numbness or tingling in the leg that may feel like a hip problem.

Could it be arthritis or a stiff hip joint?

Osteoarthritis of the hip slowly wears away the smooth cartilage on the ball and socket. The American Academy of Orthopaedic Surgeons describes stiffness that makes it hard to walk or bend, pain felt most often in the groin, and everyday tasks like tying a shoe or rising from a chair becoming difficult. Stiffness that limits the ability to move or lift the leg is one of the signs surgeons weigh when discussing hip replacement.

Impingement can create a similar block in younger, active adults. The pinch is felt deep in the groin and often appears with squatting, twisting or sitting low. An X-ray in the office usually shows whether arthritis or an impingement shape is part of the picture.

Arthritis pain and stiffness are often worse in the morning or after sitting for a while, so the drive home from a long dinner can be the hardest trip of the day. Over time the hip may lose range of motion and some people start to limp. These changes tend to build slowly, which is why many people adapt for months before mentioning the car to anyone.

What if it's a muscle, tendon or nerve?

The hip flexors are the muscles that actually raise your thigh. A strain can make lifting the leg painful and leave it feeling weak or unstable, and most mild strains settle within a few weeks of rest and home care. Pain that lingers or keeps coming back deserves a closer look.

Gluteal tendinopathy causes pain on the outside of the hip that can spread down the thigh. It often bothers people when climbing stairs, standing on one leg or getting out of bed. When a gluteal tendon tears, the leg may feel weak as well as sore.

Your lower back can be the real source. Lumbar spinal stenosis can cause pain, numbness or weakness in the legs. Because back problems so often mimic hip pain, Dr. Stride checks the spine and the hip together at every new visit.

How can I get in and out of the car more easily?

While you sort out the cause, a few habits can take the strain off the hip. These are general tips, and anyone who has just had hip surgery should follow the specific precautions from their surgeon.

• Slide the seat all the way back and recline it slightly before you get in.
• Back up to the seat, sit down first, then swing both legs in together while keeping your knees close.
• Use a firm cushion so you are not sinking low with your knees above your hips.
• A plastic bag on a cloth seat helps you pivot with less effort.
• Reverse the steps to get out, and use the door frame or a grab handle only if it is stable.

When is weakness an emergency?

Some situations need same-day care. Call 911 or go to the emergency room for sudden weakness of a leg along with face drooping, slurred speech or confusion, since that may be a stroke. The same goes for leg weakness with numbness in the groin or new trouble controlling your bladder or bowels.

Get seen the same day if you cannot lift the leg or bear weight after a fall, or if you had a hip replacement and suddenly feel a pop, see the leg shorten or turn, or cannot move it. New swelling, redness, fever or drainage around a replaced hip also needs a prompt call to your surgeon.

What happens at a hip visit?

Our team starts by watching you move, including how you sit and stand, then checks hip motion, strength and the nerves in your back and legs. X-rays are often taken the same day, and an MRI is added only when the answer is not clear.

Most of these causes respond to non-surgical care first, such as physical therapy, activity changes and sometimes an injection. When arthritis has advanced and stiffness keeps limiting daily life despite that care, hip replacement becomes part of the conversation, and you decide when the time is right. If the car has become a daily battle, the Saturday Hip Pain Clinic is a convenient place to start, and new patients are usually seen within the week.

Questions patients ask