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Bones of the Lower Limb: Femur and Patella

Bones of the Lower Limb: Femur and Patella

The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the...

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Return to Function Implications After Periacetabular Osteotomy.

H Sadiyya Ingawa¹, Kayla Gates¹, Nikhil Vallabhaneni¹

¹Department of Orthopaedics, University of Utah, Salt Lake City, Utah.

The Journal of Arthroplasty

|April 26, 2026

Summary

This summary is machine-generated.

Most patients resume daily activities within three months after periacetabular osteotomy (PAO), though hip pain and weakness can pose challenges. Return to sport is common but often at a recreational level, highlighting the need for targeted rehabilitation.

Keywords:

driving periacetabular osteotomy return to function sexual activity sports

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Area of Science:

Orthopedic Surgery
Rehabilitation Medicine
Patient Outcomes

Background:

Periacetabular osteotomy (PAO) is a key surgical treatment for hip dysplasia in young adults.
While surgical success is known, functional recovery in daily and athletic activities requires further investigation.

Purpose of the Study:

To evaluate the return to daily activities and sports after periacetabular osteotomy (PAO).
To identify challenges and timelines for functional recovery post-PAO.

Main Methods:

A survey assessed activity levels (sport, school, work, driving, sexual activity) pre- and post-PAO in 85 patients (118 hips).
Data collected from patients who underwent PAO at a single institution over 10 years.

Main Results:

Majority returned to school/work within 12 weeks; 55% resumed driving within 6 weeks.
61.3% resumed sexual activity within 9 weeks, citing hip pain and weakness as primary obstacles.
70.1% of preoperative athletes returned to sport, often recreationally; 27.3% of non-athletes initiated sports post-PAO.

Conclusions:

Patients typically regain daily function within three months post-PAO, but persistent pain and weakness are common.
Return to sport is feasible but may be at a reduced intensity, underscoring the need for tailored rehabilitation.
Findings provide guidance for patient expectations and emphasize rehabilitation's role in addressing functional deficits after PAO.