Orthopedic Recovery

Hip Surgery: Safe Leg Lifting, Precautions, and Rehabilitation

By Hart 8 min read

Lifting legs after hip surgery requires strict adherence to specific hip precautions and a gradual, assisted approach guided by medical professionals to ensure safe healing and prevent complications.

How do you lift your legs after hip surgery?

Lifting your legs after hip surgery requires careful adherence to specific precautions and a gradual, progressive approach guided by your surgeon and physical therapist to ensure safe healing and prevent complications like dislocation.

Understanding Hip Precautions Post-Surgery

Immediately following hip surgery, especially total hip arthroplasty (THA), your surgeon will outline specific "hip precautions." These are critical movement restrictions designed to protect the healing joint capsule, soft tissues, and prosthetic components from stress or dislocation. The exact precautions depend heavily on the surgical approach:

  • Posterior Approach (most common for THA): Typically involves avoiding hip flexion beyond 90 degrees, internal rotation, and adduction (crossing the midline). This means no lifting the knee too high, no turning the toes inward, and no crossing the legs.
  • Anterior Approach: Often allows for fewer precautions regarding flexion and rotation, but may have restrictions on hip extension and external rotation initially.
  • Minimally Invasive Approaches: While less invasive, specific precautions still apply, often tailored to the individual and implant.

Key Principle: Initially, active, unsupported leg lifting (especially straight leg raises or high knee lifts) is generally contraindicated due to the risk of exceeding hip flexion limits or straining the healing tissues.

Early Post-Operative Leg Movement: The Assisted Approach

In the immediate post-operative phase (often days to a few weeks), movement focuses on gentle, controlled exercises that promote circulation, prevent stiffness, and activate muscles without compromising the surgical site. These are often passive or assisted movements:

  • Ankle Pumps: Lie on your back. Gently push your feet up and down at the ankles, pointing toes towards your head and then away. This helps circulation and reduces swelling.
  • Heel Slides: Lie on your back. Keeping your heel on the bed, slowly slide your heel towards your buttocks, bending your knee, only going as far as comfortable and within your flexion precautions. Slide back to the starting position. This gently works hip and knee flexion.
  • Quad Sets (Quadriceps Isometrics): Lie on your back with your leg extended. Press the back of your knee down into the bed, tightening the muscle on the front of your thigh (quadriceps). Hold for 5-10 seconds, then relax. This strengthens the quadriceps without moving the hip joint.
  • Gluteal Sets (Gluteal Isometrics): Lie on your back. Squeeze your buttocks together, holding for 5-10 seconds, then relax. This activates the gluteal muscles, important for hip stability.
  • Log Rolling: To move in bed, keep your body in a straight line, avoiding twisting at the hip. Use your arms to help roll your entire body as one unit.

Gradual Progression to Active Leg Lifts

As healing progresses and your physical therapist deems it safe, you will gradually introduce more active movements. This typically occurs weeks after surgery, once initial pain subsides and muscle control improves.

  • Assisted Supine Leg Lifts (with a strap/towel): While lying on your back, loop a towel or a rehab strap around the sole of your foot. Use your arms to gently lift your leg, assisting the hip through a controlled range of motion. This allows you to control the degree of hip flexion and avoid over-straining.
  • Supported Standing Hip Flexion: While standing and holding onto a stable support (e.g., counter, walker), gently lift your knee only a few inches off the floor, keeping your hip within safe flexion limits. Focus on slow, controlled movement.
  • Supported Standing Hip Abduction/Adduction: While standing and holding support, slowly move your operated leg out to the side (abduction) or across the midline (adduction) only within the range permitted by your therapist, avoiding crossing the midline if that's a precaution.
  • Seated Knee Extension: Sit with your back supported. Slowly straighten your knee, lifting your foot off the floor to full extension. This strengthens the quadriceps and prepares for weight-bearing.

Crucial Note: Active straight leg raises (lifting the entire leg without bending the knee) are often one of the last movements to be cleared, as they place significant leverage and strain on the hip joint. They are typically introduced much later in rehabilitation, if at all, once significant strength and stability are regained.

Proper Biomechanics for Safe Leg Lifting

When cleared to perform more active leg lifts, proper technique is paramount to prevent injury and optimize recovery:

  • Engage Your Core: Before initiating any leg movement, gently brace your abdominal muscles. This stabilizes your trunk and pelvis, preventing compensatory movements that could strain the hip.
  • Control the Movement: Avoid jerky or rapid motions. Lift and lower your leg slowly and deliberately, maintaining control throughout the entire range of motion.
  • Maintain Neutral Spine: Do not arch or round your back excessively. Keep your spine in a relatively neutral position to ensure the movement originates from the hip joint.
  • Avoid Twisting: Keep your hips and shoulders aligned. Do not twist your trunk while lifting your leg, as this can place dangerous rotational forces on the healing hip.
  • Breathe Consistently: Do not hold your breath. Exhale during the lifting phase and inhale during the lowering phase.
  • Listen to Your Body: Pain is a warning sign. If you feel sharp pain, stop the exercise immediately and consult your physical therapist. Mild discomfort or muscle fatigue is normal, but sharp pain is not.

Common Pitfalls to Avoid

  • Ignoring Hip Precautions: The most critical error. Adhere strictly to the "do nots" provided by your surgical team.
  • Over-Flexion: Bending the hip past 90 degrees (e.g., bringing your knee too close to your chest) is a common cause of dislocation, especially with a posterior approach.
  • Crossing Legs (Adduction): Crossing your legs, even slightly, can put undue stress on the hip joint and is a major precaution for posterior approaches.
  • Internal/External Rotation: Twisting your foot or knee inward or outward beyond safe limits can also lead to dislocation, depending on the surgical approach.
  • Lifting Heavy Objects: Avoid lifting anything that causes you to strain or hold your breath, as this increases intra-abdominal pressure and can stress the hip.
  • Sudden or Jerky Movements: Rapid movements increase the risk of overshooting safe ranges or losing control, potentially leading to injury.

The Role of Your Rehabilitation Team

Your recovery journey is a collaborative effort. Your physical therapist (PT) is your primary guide for rehabilitation. They will:

  • Assess your progress and determine when it's safe to advance exercises.
  • Teach you the correct technique for each exercise.
  • Provide a personalized home exercise program.
  • Help you understand and adhere to your hip precautions.
  • Address any pain or concerns you may have.

Your surgeon provides the initial green light for rehabilitation and monitors the overall healing of the bone and soft tissues. Adherence to their guidelines and your PT's instructions is paramount for a successful outcome.

Long-Term Considerations and Return to Activity

Even after the initial post-operative phase, continued attention to hip health is vital. Your PT will guide you through:

  • Progressive Strengthening: Building strength in the glutes, quadriceps, hamstrings, and core muscles to support the new hip.
  • Balance and Proprioception: Re-educating your body's awareness of its position in space, crucial for preventing falls.
  • Functional Training: Replicating daily activities to ensure you can perform them safely and efficiently.
  • Gradual Return to Activity: Your PT will help you safely return to walking, climbing stairs, driving, and eventually, low-impact exercises or sports, if appropriate.

While some hip precautions may eventually be lifted, a lifelong awareness of safe movement patterns and avoiding extreme ranges of motion will contribute to the longevity and success of your hip surgery.

Key Takeaways

  • Immediately after hip surgery, strict "hip precautions" are essential to protect the joint and prevent dislocation, with specific restrictions depending on the surgical approach.
  • Early post-operative leg movements are passive or assisted exercises like ankle pumps and heel slides, focusing on circulation and gentle muscle activation without straining the hip.
  • Active leg lifts are introduced gradually under physical therapist guidance, often with assistance from straps, and full straight leg raises are typically cleared much later in recovery.
  • Proper biomechanics, including core engagement, controlled movements, and avoiding twisting, are crucial for safe leg lifting once cleared for active exercises.
  • Adhering to the rehabilitation plan provided by your surgeon and physical therapist is paramount for a successful recovery and long-term hip health.

Frequently Asked Questions

What are hip precautions after surgery, and why are they important?

Hip precautions are critical movement restrictions outlined by your surgeon to protect the healing joint and prevent complications like dislocation, with specific rules varying by surgical approach (e.g., avoiding hip flexion beyond 90 degrees or crossing legs for posterior approach).

What types of leg movements are safe immediately after hip surgery?

In the immediate post-operative phase, safe movements are typically passive or assisted, such as ankle pumps, heel slides, quadriceps sets, and gluteal sets, which promote circulation and activate muscles without compromising the surgical site.

When can I start actively lifting my leg after hip surgery?

Active leg lifts are gradually introduced weeks after surgery, once initial pain subsides and muscle control improves, always under the guidance of a physical therapist; active straight leg raises are usually cleared much later in rehabilitation.

What common pitfalls should I avoid when moving my legs after hip surgery?

Common pitfalls to avoid include ignoring hip precautions, over-flexion (bending the hip past 90 degrees), crossing legs, twisting the foot or knee beyond safe limits, lifting heavy objects, and making sudden or jerky movements.

What is the role of a physical therapist in hip surgery recovery?

A physical therapist is crucial for recovery, assessing progress, teaching correct exercise techniques, providing a personalized home exercise program, ensuring adherence to hip precautions, and guiding the gradual return to daily activities and low-impact exercises.