Learning curve in periacetabular osteotomy for developmental dysplasia of the hip

Listen to Brian and Lisa discuss the paper 'Learning curve in periacetabular osteotomy for developmental dysplasia of the hip' published in the April 2026 issue of Bone & Joint Open.

Click here to read the paper.

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Transcript

[00:00:00] Welcome back to another episode of AI Talks with Bone & Joint from the publishers of Bone & Joint Open. Today, we're delving into the paper 'Learning curve in periacetabular osteotomy for developmental dysplasia of the hip', published in April 2026 by N. Ramadanov and colleagues. I'm Brian, and joining me today is my co-host, Lisa.

Lisa, this paper touches on fascinating aspects of periacetabular osteotomy, or PAO, especially the learning curve associated with this procedure. Shall we dive in?

Absolutely, Brian. PAO is a technically challenging surgery used to treat developmental dysplasia of the hip, or DDH. The researchers aimed to see how a surgeon's experience affects elements such as operative efficiency, perioperative morbidity, and even the rate of conversion to total hip arthroplasty.

Indeed. They carried out a systematic review and meta-analysis of existing literature. They [00:01:00] identified seven studies covering 499 patients and 556 hips. The studies compared early and late phases of surgeon experience to form their conclusions.

One notable finding is that surgery times significantly decreased with surgeon experience. In fact, late-phase surgeries were on average 74.58 minutes shorter than early-phase cases. That's a notable reduction. What strikes me as particularly interesting is that despite the reduced operating times, there were no significant differences in blood loss, complication rates, or the need for conversion to total hip arthroplasty.

This indicates that operative efficiency improves with experience, but the core safety and effectiveness of the procedure remain constant. Precisely, Lisa. This underscores the importance of structured training in high-volume surgical settings. The study suggests that even during the early phase of a surgeon's learning curve, the procedure can be [00:02:00] performed safely under supervision.

This supports the notion of centralized hip preservation programs to ensure quality and safety. Another key takeaway is the consistency in radiological outcomes. The precision in achieving desired acetabular reorientation didn't differ significantly between early and late phases, which is crucial for preserving joint function and preventing osteoarthritis.

What this means is that with the right guidance, even less experienced surgeons can achieve effective results. They've also highlighted the need for more standardized prospective studies to establish proficiency thresholds. This would be particularly beneficial for shaping future training programs and could help in pinpointing the optimal number of procedures required before a surgeon can be considered proficient in PAO.

It's evident that surgical experience plays a significant role in operative efficiency. However, the findings also reassure us that with proper mentorship and structured training, [00:03:00] patient outcomes can remain consistently high even in the early stages of a surgeon's career. To summarize, increasing experience in periacetabular osteotomy primarily boosts surgical efficiency with safer and precise outcomes being achievable under appropriate supervision.

This study highlights the importance of structured training pathways in ensuring the safety and efficacy of complex surgical procedures like PAO. That covers it well. Thanks for tuning in to this episode of AI Talks with Bone & Joint. We hope you found our discussion on the learning curve in periacetabular osteotomy for DDH insightful.