J Knee Surg 2022; 35(02): 145-149
DOI: 10.1055/s-0040-1713126
Original Article

The Importance of Staging Arthroscopy for Chondral Defects of the Knee

Hytham S. Salem
1   Rothman Orthopedic Institute, Philadelphia, Pennsylvania
,
Zaira S. Chaudhry
1   Rothman Orthopedic Institute, Philadelphia, Pennsylvania
,
Ludovico Lucenti
2   Department of Orthopedic Surgery, University of Catania, Catania, Sicilia, Italy
,
Bradford S. Tucker
1   Rothman Orthopedic Institute, Philadelphia, Pennsylvania
,
Kevin B. Freedman
1   Rothman Orthopedic Institute, Philadelphia, Pennsylvania
› Author Affiliations

Abstract

This study aims to evaluate the role of staging arthroscopy in the diagnosis of knee chondral defects and subsequent surgical planning prior to autologous chondrocyte implantation (ACI), osteochondral allograft transplantation (OCA), and meniscus allograft transplantation (MAT). All patients who underwent staging arthroscopy prior to ACI, OCA, or MAT at our institution from 2005 to 2015 were identified. Medical records were reviewed to document the diagnosis and treatment plan based on symptoms, magnetic resonance imaging (MRI) findings and previous operative records. Operative records of the subsequent staging arthroscopy procedure were reviewed to document the proposed treatment plan after arthroscopy. All changes in treatment plan following staging arthroscopy were recorded. Univariate analyses were performed to identify any significant predictors for likelihood to change. A total of 98 patients were included in our analysis. A change in surgical plan was made following arthroscopy in 36 patients (36.7%). Fourteen patients (14.3%) were found to have additional defects that warranted cartilage restoration surgery. In 15 patients (15.3%), at least one defect that was originally thought to warrant cartilage restoration surgery was found to be amenable to debridement alone. The surgical plan was changed from ACI to OCA in four cases (4.1%) and OCA to ACI in one case (1%). A previously proposed MAT was deemed unwarranted in one case (1%), and a planned meniscal repair was changed to MAT in another (1%). Patient age, sex, and the affected knee compartment were not predictors for a change in surgical plan. Body mass index (BMI) was significantly higher in patients who had a change in surgical plan (29.5 kg/m2) compared with those who did not (26.5 kg/m2). A change in surgical plan was more likely to occur for trochlear lesions (46.4%) compared with other articular surface lesions (p = 0.008). The results of our study indicate that staging arthroscopy is an important step in determining the most appropriate treatment plan for chondral defects and meniscal deficiency, particularly those with trochlear cartilage lesions.



Publication History

Received: 23 February 2020

Accepted: 02 May 2020

Article published online:
16 June 2020

© 2020. Thieme. All rights reserved.

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